Stockfish sewing machine

[Alayan]

If there is a single cause for an easily reproducible defect, binary search allows to track down the responsible commit extremely quickly.

However if the defect is "random" and unlikely to happen, or if it has no clear single cause, then it's hard to impossible to fix.

[jhellis3]

I think this is likely just a pruning issue deep in the tree, which can happen especially with relatively narrow & deep winning paths.

Reductions are just incredibly strong regardless of root depth.... and when things get reduced beyond a certain point things can go a bit sideways.

[Ovyron]

Wow, when I tried Cfish on this:

[d]1n1k4/3p4/p1pPp3/P1P1PpK1/5p2/5P2/2P2P2/8 b - -

It showed this:

63/10 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (10.438.957) 6184 TB:808
64/09 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (10.446.771) 6130 TB:808
65/10 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (10.480.048) 6150 TB:808
66/09 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (10.486.533) 6154 TB:808
67/10 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (10.496.838) 6160 TB:808
68/09 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (10.513.835) 6116 TB:808
69/49 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.c3 Kf7 7.Kh5 Kg7 8.Kg5 Kf7 9.Kh6 Kf8 (65.349.090) 5359 TB:3.447
70/28 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.c3 Kf7 7.Kh5 Kg7 8.Kg5 Kf7 9.Kh6 Kf8 10.c4 Ke8 11.Kg7 Kd8 12.Kf7 Kc8 13.Ke7 Kb7 14.Kf8 Kc8 (66.074.994) 5360 TB:3.501
71/27 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (66.145.206) 5360 TB:3.508
72/10 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh5 Kg7 6.Kg5 (67.953.949) 5368 TB:3.521
73/10 0:18 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (97.908.477) 5331 TB:3.897

I saw nothing new for 5 minutes, so I decided to stop it. And then it crashed

These positions are truly engine crackers.

[MikeB]

A famous study by Blathy (declared in the study as mate in 58):
[d]1n6/k2p4/p1pPp3/P1P1Pp2/5p2/5P2/2P2P2/4K3 w - -
You can find it on Yacpdb:
https://www.yacpdb.org/#search/MW42azJw ... LzEvMA==/1

Now, the pecular thing here is that analyzing it with stockfish will either give you a mate after a very long think, or a draw.
Furthermore, if you analyze the proposed pv from the last move to the first, you will see all sorts of odd behavior.
Like finding mate, then seeing a draw then finding mate then seeing a draw (on a single position from the chain!).

So you get peculiar and hard to reproduce behavior analyzing the root position or even analyzing the pv positions from the end position towards the front. I suppose it could be a hash overwrite issue, but it happens so often that seems incredibly unlikely.
Here are the positions from the end of the proposed pv back to the start:
<snip>
But it certainly seems like it should not be necessary to do that.

Latest Honey - this will be released soon , since I need to re-release BD for bug fix - version XI-r3.1

Just a straight run from the initial position - no back and forth ... reached depth 96 in just over 30 minutes, mate in 53 found in just under 15 minutes , with just over 210 bliion nodes searched . The 30 minute search averaged 247M nps.

Code: Select all

$ Ho*070820.exe



                                           __         __
    #     #                      #     #  /  \.-'''-./  \  #     # ###            #####
    #     #  ####  #    # ######  #   #   \    \   /    /   #   #   #     #####  #     #
    #     # #    # ##   # #        # #     (   o   o   )     # #    #     #    #       #
    ####### #    # # #  # #####     #      |     w     |      #     # ### #    #  #####
    #     # #    # #  # # #         #      \  .-'''-.  /     # #    #     #####        #
    #     # #    # #   ## #         #       '-\__Y__/-'     #   #   #     #   #  #     #
    #     #  ####  #    # ######    #          `---`       #     # ###    #    #  #####


    Honey 070820 by M. Byrne and scores of others...

position fen 1nk5/3p4/p1pPp3/P1P1Pp2/5p2/5P1K/2P2P2/8 w - - 0 1
s t 64
info string Hash Table: Windows Large Pages, 256 Mb
Confirmation: Threads set to 64
s h 86688
info string Hash Table: Windows Large Pages, 86688 Mb
s z Confirmation: Hash set to 86688 Mb
c:/syzygy
info string Found 510 tablebases
Confirmation: SyzygyPath set to c:/syzygy
s dpa true
Confirmation: Deep Pro Analysis set to true
s prov 63
Confirmation: Pro Value set to 63
g i
info depth 1 seldepth 1 multipv 1 score cp -146 wdl 16 522 462 sp 277 nodes 489 nps 244500 tbhits 0 time 2 pv h3g2
info depth 2 seldepth 2 multipv 1 score cp -46 wdl 59 760 181 sp 439 nodes 9569 nps 3189666 tbhits 0 time 3 pv h3h4 c8d8
info depth 3 seldepth 3 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 64759 nps 21586333 tbhits 0 time 3 pv h3h4 c8d8 h4g5
info depth 4 seldepth 4 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 76889 nps 19222250 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8
info depth 5 seldepth 5 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 81418 nps 20354500 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4
info depth 6 seldepth 6 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 85549 nps 21387250 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8
info depth 7 seldepth 7 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 90644 nps 22661000 tbhits 0 time 4 pv h3h4 c8b7 h4g5 b7a7 g5f4 a7b7 f4e3
info depth 8 seldepth 9 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 100340 nps 25085000 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7h7 h5g5 h7g7
info depth 9 seldepth 9 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 105303 nps 26325750 tbhits 0 time 4 pv h3h4 c8b7 h4g5 b7a7 g5f4 a7b7 f4e3 b7c8 e3f4
info depth 10 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 116966 nps 29241500 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 11 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 127752 nps 31938000 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 12 seldepth 16 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 140954 nps 35238500 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7f7 h5h6 f7e8 h6g5 e8f7
info depth 13 seldepth 19 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 153050 nps 38262500 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8f7 g5h6 f7e8 h6g5
info depth 14 seldepth 9 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 163315 nps 40828750 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7e8
info depth 15 seldepth 15 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 175119 nps 43779750 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7f7 h5h6 f7e8 h6g5 e8f7
info depth 16 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 186935 nps 46733750 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8f7 g5h6 f7f8
info depth 17 seldepth 11 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 201718 nps 50429500 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8f7 g5h6 f7f8
info depth 18 seldepth 11 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 216100 nps 54025000 tbhits 0 time 4 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8f7 g5h6 f7f8
info depth 19 seldepth 10 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 227581 nps 45516200 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8e8
info depth 20 seldepth 15 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 248797 nps 49759400 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7f8 h5g6 f8e8 g6f6 e8f8
info depth 21 seldepth 13 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 266770 nps 53354000 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8f7 g5h6 f7g8 h6g6 g8f8
info depth 22 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 280256 nps 56051200 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 23 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 297756 nps 59551200 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7h7 h5g5
info depth 24 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 319149 nps 63829800 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 25 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 340370 nps 68074000 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7h7 h5g5
info depth 26 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 366156 nps 73231200 tbhits 0 time 5 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7h7 h5g5
info depth 27 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 390922 nps 65153666 tbhits 0 time 6 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 28 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 428942 nps 71490333 tbhits 0 time 6 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 29 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 472555 nps 78759166 tbhits 0 time 6 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 30 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 508441 nps 84740166 tbhits 0 time 6 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7h7 h5g5
info depth 31 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 560555 nps 80079285 tbhits 0 time 7 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 32 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 624018 nps 89145428 tbhits 0 time 7 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f8 f4g5 f8g7 g5h5 g7h7 h5g5
info depth 33 seldepth 12 multipv 1 score cp -0 wdl 0 1000 0 sp 500 nodes 719125 nps 89890625 tbhits 0 time 8 pv h3h4 c8d8 h4g5 d8e8 g5f4 e8f7 f4g5 f7g7 g5h5 g7h7 h5g5
info depth 34 seldepth 16 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 908098 nps 100899777 tbhits 0 time 9 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 35 seldepth 24 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 985827 nps 109536333 tbhits 0 time 9 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8f7 c8b7 f7f6 b7a7 f6g5 a7a8 g5f4 a8b7 f4e3 b7c8 e3f4
info depth 36 seldepth 14 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1021585 nps 113509444 tbhits 0 time 9 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 37 seldepth 14 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1076773 nps 107677300 tbhits 0 time 10 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 38 seldepth 14 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1170067 nps 117006700 tbhits 0 time 10 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 39 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1234619 nps 112238090 tbhits 0 time 11 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 40 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1328623 nps 120783909 tbhits 0 time 11 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 41 seldepth 31 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1421731 nps 118477583 tbhits 0 time 12 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7h7 d8c8 h7h6 c8b7 h6h5 b7a7 h5g5 a7a8 g5f4 a8b7 f4g5 b7c8 g5f6 c8b7 f6g6 b7a7 g6g5 a7a8
info depth 42 seldepth 26 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1648674 nps 126821076 tbhits 0 time 13 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7h7 d8c8 h7h6 c8b7 h6h5 b7a7 h5g5 a7a8 g5f4 a8b7 f4g5 b7c8 g5f6 c8b7
info depth 43 seldepth 9 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1731993 nps 133230230 tbhits 0 time 13 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 44 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 1815494 nps 129678142 tbhits 0 time 14 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 45 seldepth 34 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 2141888 nps 133868000 tbhits 0 time 16 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7h7 d8c8 h7h6 c8b7 h6h5 b7a7 h5g5 a7a8 g5f4 a8b7 f4g5 b7c8 g5f6 c8b7 f6g6 b7a7 g6g7 a7b7 g7f6 b7a7 f6e7 a7b7 e7f6
info depth 46 seldepth 11 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 2191436 nps 136964750 tbhits 0 time 16 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 47 seldepth 16 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 2253921 nps 140870062 tbhits 1 time 16 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 48 seldepth 11 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 2320675 nps 136510294 tbhits 1 time 17 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 49 seldepth 14 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 2366115 nps 139183235 tbhits 1 time 17 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 50 seldepth 37 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 3175292 nps 151204380 tbhits 75 time 21 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7h7 d8c8 h7h6 c8b7 h6h5 b7a7 h5g5 a7a8 g5f4 a8b7 f4g5 b7c8 g5f6 c8b7 f6g6 b7a7 g6g5 a7a8 g5h6 a8b7 h6h5 b7a7 h5g6 a7b7
info depth 51 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 3276618 nps 148937181 tbhits 93 time 22 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 52 seldepth 14 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 3373181 nps 153326409 tbhits 107 time 22 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 53 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 3467640 nps 150766956 tbhits 107 time 23 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 54 seldepth 14 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 4167998 nps 154370296 tbhits 249 time 27 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 55 seldepth 24 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 4472722 nps 159740071 tbhits 281 time 28 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7f6 c8b7 f6g5 b7a7 g5f4 a7b7 f4g5 b7c8 g5f6 c8b7
info depth 56 seldepth 14 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 4982085 nps 160712419 tbhits 346 time 31 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 57 seldepth 10 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 5104185 nps 159505781 tbhits 378 time 32 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 58 seldepth 10 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 5308086 nps 160851090 tbhits 406 time 33 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 59 seldepth 35 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 5715709 nps 163305971 tbhits 531 time 35 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g5 e8f7 g5h6 f7g8 c2c3 g8f7 h6h7 f7f8 h7g6 f8e8 g6g7 e8d8 g7f7 d8c8 f7g6 c8d8 g6g7 d8c8 g7h6 c8b7 c3c4 b7c8 h6g6 c8d8 g6g7 d8c8
info depth 60 seldepth 12 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 5848536 nps 162459333 tbhits 545 time 36 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 61 seldepth 10 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 6030318 nps 162981567 tbhits 572 time 37 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 62 seldepth 10 multipv 1 score cp 0 wdl 0 1000 0 sp 500 nodes 8372417 nps 167448340 tbhits 1273 time 50 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8
info depth 63 seldepth 71 multipv 1 score cp 248 wdl 776 220 4 sp 886 nodes 98186760 nps 172560210 tbhits 9757 time 569 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e8 c8b7 e8d8 b7a8 d8e7 a8a7 e7f6 a7b7 f6g5 b7a8 g5f4 a8a7 f4g5 a7b7 g5f6 b7a8 f6e7 a8a7 e7d8 a7b7 c2c4 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f8 f4g5 f8g7 f3f4 g7h7 g5f6 h7g8 f4f5 e6f5 f2f3 f5f4 f6f5 g8f7 f5g4
info depth 64 seldepth 81 multipv 1 score cp 515 wdl 992 8 0 sp 996 nodes 253616494 nps 188142799 hashfull 0 tbhits 144981 time 1348 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8b7 g5f4 b7c8 f4g5 c8b7 c2c3 b7c8 g5f6 c8d8 f6g7 d8e8 g7g8 e8d8 g8f8 d8c8 f8e8 c8b7 e8d8 b7a8 d8c7 a8a7 c7c8 f5f4 c8c7 a7a8 c7d8 a8b7 d8e8 b7a7 e8f7 a7b7 f7g7 b7c8 g7f8 c8b7 f8f7 b7a7 f7g6 a7b7 g6g5 b7c8 g5f4 c8d8 c3c4 d8e8 f4g4 e8f7 g4g5 f7g7 f3f4

info 10 seconds
info depth 64 seldepth 84 multipv 1 score cp 973 wdl 1000 0 0 sp 1000 nodes 2172294419 nps 217186004 hashfull 6 tbhits 1372272 time 10002 pv h3h4

info 20 seconds
info depth 64 seldepth 93 multipv 1 score cp 1502 wdl 1000 0 0 sp 1000 nodes 4334148639 nps 216685763 hashfull 9 tbhits 2167983 time 20002 pv h3h4

info 30 seconds
info depth 64 seldepth 93 multipv 1 score cp 1502 wdl 1000 0 0 sp 1000 nodes 6379333100 nps 212630261 hashfull 14 tbhits 2964335 time 30002 pv h3h4

info 40 seconds
info depth 64 seldepth 93 multipv 1 score cp 1777 wdl 1000 0 0 sp 1000 nodes 8475858507 nps 211885868 hashfull 17 tbhits 3324571 time 40002 pv h3h4

info 50 seconds
info depth 64 seldepth 93 multipv 1 score cp 2553 wdl 1000 0 0 sp 1000 nodes 10277991221 nps 205551602 hashfull 21 tbhits 3851776 time 50002 pv h3h4
info depth 65 seldepth 93 multipv 1 score cp 3795 wdl 1000 0 0 sp 1000 nodes 10347548339 nps 205312572 hashfull 21 tbhits 3922807 time 50399 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c7 a8a7 c3c4 a7a8 c7b6 f5f4 b6c7 a8a7 c7c8 a7a8 c8d8 a8a7 d8e7 a7b7 e7f7 b7c8 f7f6 c8d8 f6g5 d8e8
info depth 66 seldepth 76 multipv 1 score cp 3802 wdl 1000 0 0 sp 1000 nodes 10349670250 nps 205309864 hashfull 21 tbhits 3925107 time 50410 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 f5f4 c3c4 c8b7 e7f7 b7c8 f7f6 c8d8 f6g5 d8e8 g5f4 e8f8 f4g5 f8g7 f3f4 g7h7 g5f6 h7g8 f6g6 g8f8 f4f5 f8g8 f2f3 e6f5 g6f5 g8g7 f5g5 g7h7 f3f4 h7g7 f4f5 g7h7 g5g4 h7g8
info depth 67 seldepth 67 multipv 1 score cp 3802 wdl 1000 0 0 sp 1000 nodes 10353769616 nps 205301586 hashfull 21 tbhits 3929383 time 50432 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7a8 e7f6 a8b7 f6g5 b7c8 g5f4 c8d8 f4g5 d8e8 g5g6 e8f8 c3c4 f8g8 f3f4 g8f8 f4f5 f8g8 f2f3 e6f5 g6f5
info depth 68 seldepth 68 multipv 1 score cp 3802 wdl 1000 0 0 sp 1000 nodes 10361027525 nps 205282681 hashfull 21 tbhits 3935426 time 50472 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7a8 e7f6 a8b7 f6g5 b7c8 g5f4 c8d8 f4g5 d8e8 g5g6 e8f8 c3c4 f8g8 g6f6 g8h7 f6g5 h7g7 f3f4 g7h7 f2f3 h7g8
info depth 69 seldepth 69 multipv 1 score cp 3802 wdl 1000 0 0 sp 1000 nodes 10361134804 nps 205280740 hashfull 21 tbhits 3935565 time 50473 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7a8 e7f6 a8b7 f6g5 b7c8 g5f4 c8d8 f4g5 d8e8 g5f6 e8f8 f3f4 f8g8 c3c4 g8h7 f4f5 h7h8 f2f3 e6f5 f3f4 h8g8 f6f5
info depth 70 seldepth 73 multipv 1 score cp 3802 wdl 1000 0 0 sp 1000 nodes 10361874611 nps 205283196 hashfull 21 tbhits 3936502 time 50476 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7a8 e7f7 a8a7 f7g6 a7b7 g6g5 b7c8 g5f4 c8d8 f4g5 d8e8 g5f6 e8f8 f3f4 f8g8 c3c4 g8h7 f2f3 h7g8 f4f5 g8f8 f3f4 e6f5
info depth 71 seldepth 71 multipv 1 score cp 3802 wdl 1000 0 0 sp 1000 nodes 10650839873 nps 205487727 hashfull 22 tbhits 4325398 time 51832 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7a8 e7f6 a8b7 f6g5 b7c8 g5f4 c8d8 f4g5 d8e8 g5f6 e8f8 f3f4 f8g8 c3c4 g8h7 f2f3 h7g8 f4f5 g8f8 f3f4 e6f5 f6f5 f8f7 f5g5
info depth 72 seldepth 72 multipv 1 score cp 4122 wdl 1000 0 0 sp 1000 nodes 10659635308 nps 205506753 hashfull 22 tbhits 4330210 time 51870 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8e8 g6g7 e8d8 g7f8 d8c8 f8e8 c8b7 e8d8 b7a7 d8c8 a7a8 c2c3 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7c8 a7a8 c8d8 a8b7 d8e7 b7c8 e7e8 c8b7 e8f8 b7a8 f8f7 a8b7 f7g6 b7c8 g6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8f8 f3f4
info depth 73 seldepth 76 multipv 1 score cp 4128 wdl 1000 0 0 sp 1000 nodes 10677220075 nps 205536691 hashfull 22 tbhits 4343928 time 51948 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8e8 g6g7 e8d8 g7f8 d8c8 f8e8 c8b7 e8d8 f5f4 d8e7 b7c8 c2c4 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8f8 f3f4 f8g8 g6f6 g8f8 f4f5 e6f5 f2f4 f8g8 f6e7 g8h8 e7f7 h8h7 e5e6 d7e6 f7e6 h7g6 d6d7 b8d7 e6d7 g6h5 d7c6 h5h4 c6b6 h4h3
info depth 74 seldepth 76 multipv 1 score cp 4128 wdl 1000 0 0 sp 1000 nodes 10680316834 nps 205544866 hashfull 22 tbhits 4346541 time 51961 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7c8 a7a8 c8d8 a8a7 c3c4 a7a8 d8e7 a8b7 e7e8 b7c8 e8f7 c8d8 f7f8 d8c8 f8g7 c8b7 g7g6 b7c8 g6f6 c8d8 f6g5 d8e8 g5f4 e8f8 f4g5 f8f7 g5h6 f7f8 h6g6 f8g8 f3f4 g8f8 g6f6 f8g8
info depth 75 seldepth 75 multipv 1 score cp 4128 wdl 1000 0 0 sp 1000 nodes 10682554289 nps 205548369 hashfull 22 tbhits 4348047 time 51971 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 f5f4 c7c8 a7a8 c8d8 a8a7 d8e7 a7b7 e7f7 b7c8 f7g8 c8d8 g8g7 d8c8 c3c4 c8b7 g7g6 b7c8 g6h5 c8d8 h5g5 d8e8 g5f4 e8f8 f4g5 f8f7 g5h6 f7f8 h6g6 f8g8 f3f4 g8f8 g6f6 f8g8 f2f3 g8h7 f4f5 e6f5 f3f4 h7h6 e5e6
info depth 76 seldepth 78 multipv 1 score cp 4128 wdl 1000 0 0 sp 1000 nodes 10686838287 nps 205555650 hashfull 22 tbhits 4350114 time 51990 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 f5f4 c7c8 a7a8 c8d8 a8a7 d8e7 a7b7 e7f7 b7c8 f7e8 c8b7 e8e7 b7a7 e7f6 a7b7 f6g5 b7c8 g5f4 c8d8 f4g5 d8e8 g5f6 e8f8 c3c4 f8g8 f3f4 g8f8 f4f5 e6f5 f2f4 f8g8 f6e7 g8g7 e5e6 d7e6 e7e6 g7g6 d6d7 b8d7 e6d7 g6f6 d7c6 f6e7
info depth 77 seldepth 81 multipv 1 score cp 4128 wdl 1000 0 0 sp 1000 nodes 10692497519 nps 205565654 hashfull 22 tbhits 4353634 time 52015 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 f5f4 c7c8 a7a8 c8d8 a8a7 d8e7 a7b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f8 g5f6 f8g8 f3f4 g8f8 c3c4 f8g8 f2f3 g8f8 f4f5 e6f5 f3f4 f8g8 f6e7 g8h7 e5e6 h7g7 e6d7 b8d7 e7d7 g7f7 d7c6 f7e8 d6d7 e8d8 c6b7 d8e7 d7d8q e7d8 b7a6 d8c7 c5c6
info depth 78 seldepth 79 multipv 1 score cp 4128 wdl 1000 0 0 sp 1000 nodes 10694501671 nps 205572567 hashfull 22 tbhits 4355027 time 52023 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 f5f4 c7c8 a7a8 c8d8 a8b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f8 c3c4 f8g8 f4g5 g8h7 g5f6 h7h8 f6e7 h8g7 e7d8 g7h6 d8c8 h6g5 c8b8 g5f4 b8c8 f4e5 c8c7 e5f4 c7d7 f4f3 d7e6 f3f2 e6f5 f2g1 d6d7 g1f2 f5f4
info depth 79 seldepth 81 multipv 1 score cp 4128 wdl 1000 0 0 sp 1000 nodes 10754444677 nps 205740064 hashfull 22 tbhits 4375719 time 52272 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 f5f4 c7c8 a7a8 c8d8 a8b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f8 c3c4 f8g8 f4g5 g8h7 g5f6 h7h8 f6g6 h8g8 f3f4 g8f8 g6f6 f8g8 f2f3 g8h7 f4f5 e6f5 f3f4 h7g8 f6f5 g8g7 f5g5 g7f7 f4f5 f7g7 g5h5 g7h7 h5g4 h7g7
info depth 80 seldepth 86 multipv 1 score cp 4134 wdl 1000 0 0 sp 1000 nodes 10912476004 nps 206195340 hashfull 22 tbhits 4429352 time 52923 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 f5f4 c7d8 a7a8 c3c4 a8b7 d8e7 b7c8 e7f6 c8d8 f6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 f3f4 g8f8 g6f6 f8g8 f6e7 g8h7 e7d8 h7g8 d8c7 g8g7 c7b8 g7h7 f2f3 h7g8 b8b7 g8f7 b7c8
info depth 81 seldepth 82 multipv 1 score cp 4134 wdl 1000 0 0 sp 1000 nodes 11041918676 nps 206541566 hashfull 23 tbhits 4469874 time 53461 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 c3c4 a8b7 d8e7 b7c8 e7f6 c8d8 f6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8h8 f3f4 h8g8 g6f6 g8h8 f6e7 h8g7 e7d8 g7h6 d8c7 h6h5 c7b8 h5g4 b8c7 g4f4
info depth 82 seldepth 84 multipv 1 score cp 4134 wdl 1000 0 0 sp 1000 nodes 11042463190 nps 206544024 hashfull 23 tbhits 4469972 time 53463 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f8 b7c8 f8f7 c8d8 f7g7 d8c8 g7g6 c8d8 g6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7h7 g5f6 h7h6 f3f4 h6h5 f4f5 e6f5 f6f5 h5h6 f2f3 h6h5 e5e6 d7e6 f5e6 h5g5 d6d7 g5h5 f3f4 h5g4 d7d8q

info 60 seconds
info depth 82 seldepth 84 multipv 1 score cp 4134 wdl 1000 0 0 sp 1000 nodes 12565953072 nps 209425570 hashfull 27 tbhits 5169257 time 60002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f8 b7c8 f8f7 c8d8 f7g7 d8c8 g7g6 c8d8 g6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7h7 g5f6 h7h6 f3f4 h6h5 f4f5 e6f5 f6f5 h5h6 f2f3 h6h5 e5e6 d7e6 f5e6 h5g5 d6d7 g5h5 f3f4 h5g4 d7d8q

info 70 seconds
info depth 82 seldepth 84 multipv 1 score cp 4134 wdl 1000 0 0 sp 1000 nodes 14800041236 nps 211423119 hashfull 31 tbhits 5840078 time 70002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f8 b7c8 f8f7 c8d8 f7g7 d8c8 g7g6 c8d8 g6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7h7 g5f6 h7h6 f3f4 h6h5 f4f5 e6f5 f6f5 h5h6 f2f3 h6h5 e5e6 d7e6 f5e6 h5g5 d6d7 g5h5 f3f4 h5g4 d7d8q

info 80 seconds
info depth 82 seldepth 84 multipv 1 score cp 4134 wdl 1000 0 0 sp 1000 nodes 17068652990 nps 213352828 hashfull 34 tbhits 6273813 time 80002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a7 d8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f8 b7c8 f8f7 c8d8 f7g7 d8c8 g7g6 c8d8 g6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7h7 g5f6 h7h6 f3f4 h6h5 f4f5 e6f5 f6f5 h5h6 f2f3 h6h5 e5e6 d7e6 f5e6 h5g5 d6d7 g5h5 f3f4 h5g4 d7d8q

info 90 seconds
info depth 82 seldepth 85 multipv 1 score cp 4275 wdl 1000 0 0 sp 1000 nodes 19349608785 nps 214990875 hashfull 41 tbhits 7715496 time 90002 pv h3h4

info 100 seconds
info depth 82 seldepth 85 multipv 1 score cp 4275 wdl 1000 0 0 sp 1000 nodes 21586906767 nps 215864750 hashfull 44 tbhits 8120664 time 100002 pv h3h4
info depth 83 seldepth 85 multipv 1 score cp 4413 wdl 1000 0 0 sp 1000 nodes 23132357622 nps 216615391 hashfull 46 tbhits 8385450 time 106790 pv h3h4 c8d8 h4h5 d8e8 h5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f7 c8d8 f7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8h8 c3c4 h8g8 f3f4 g8h8 f2f3 h8g8 f4f5 g8h8 f5e6 d7e6 g6f6 b8d7 f6e6 d7f8 e6f7 h8h7 f7f8 h7g6 d6d7
info depth 84 seldepth 84 multipv 1 score cp 4413 wdl 1000 0 0 sp 1000 nodes 23137496373 nps 216614829 hashfull 46 tbhits 8387823 time 106814 pv h3h4 c8d8 h4h5 d8e8 h5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f7 c8b7 f7f8 b7a8 f8e7 a8b7 c3c4 b7c8 e7f6 c8d8 f6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8f8 g6f6 f8g8 f3f4 g8h7 f4f5 h7h6 f5e6 h6h5 e6e7 h5g4 e7e8q g4f3

info 110 seconds
info depth 84 seldepth 84 multipv 1 score cp 4413 wdl 1000 0 0 sp 1000 nodes 23845670549 nps 216774881 hashfull 49 tbhits 8625046 time 110002 pv h3h4 c8d8 h4h5 d8e8 h5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f7 c8b7 f7f8 b7a8 f8e7 a8b7 c3c4 b7c8 e7f6 c8d8 f6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8f8 g6f6 f8g8 f3f4 g8h7 f4f5 h7h6 f5e6 h6h5 e6e7 h5g4 e7e8q g4f3

info 120 seconds
info depth 84 seldepth 84 multipv 1 score cp 4413 wdl 1000 0 0 sp 1000 nodes 26105714947 nps 217543998 hashfull 49 tbhits 8695728 time 120002 pv h3h4 c8d8 h4h5 d8e8 h5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f7 c8b7 f7f8 b7a8 f8e7 a8b7 c3c4 b7c8 e7f6 c8d8 f6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8f8 g6f6 f8g8 f3f4 g8h7 f4f5 h7h6 f5e6 h6h5 e6e7 h5g4 e7e8q g4f3

info 3 minutes
info depth 84 seldepth 94 multipv 1 score cp 4795 wdl 1000 0 0 sp 1000 nodes 38745977118 nps 215253036 hashfull 59 tbhits 10431390 time 180002 pv h3h4

info 4 minutes
info depth 84 seldepth 94 multipv 1 score cp 4795 wdl 1000 0 0 sp 1000 nodes 51992766122 nps 216634720 hashfull 67 tbhits 11190228 time 240002 pv h3h4
info depth 85 seldepth 94 multipv 1 score cp 4946 wdl 1000 0 0 sp 1000 nodes 58480244456 nps 217965875 hashfull 68 tbhits 11293630 time 268300 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8a7 e7f6 a7b7 f6g5 b7c8 g5f4 c8d8 f4g5 d8e8 c3c4 e8f7 f3f4 f7g7 f4f5 g7h7 g5f6 h7h6 f5e6 h6h5 e6e7 h5h4 e7e8q h4h3 e8h8 h3g2 h8b8 g2g1 b8c8 g1g2 c8d7 g2h2 f6f5 h2g2 d7c6 g2f1 c6a6 f1f2 d6d7
info depth 86 seldepth 88 multipv 1 score cp 4947 wdl 1000 0 0 sp 1000 nodes 60590866694 nps 218397408 hashfull 69 tbhits 11371525 time 277434 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8a7 e7f6 a7b7 f6g5 b7c8 g5f4 c8d8 f4g5 d8e8 c3c4 e8f7 f3f4 f7g7 f4f5 g7f7 g5h6 f7f8 h6g6 f8g8 f2f3 g8h8 f5e6 d7e6 g6f6 h8g8 f6e6 g8h7 d6d7 b8d7 e6d7 h7g6 e5e6 g6f6 e6e7 f6f5 e7e8q f5f4 e8e4 f4g3 d7c6 g3f2 c6c7 f2g2

info 5 minutes
info depth 86 seldepth 94 multipv 1 score cp 5030 wdl 1000 0 0 sp 1000 nodes 65733311239 nps 219109576 hashfull 70 tbhits 11636608 time 300002 pv h3h4
info depth 87 seldepth 94 multipv 1 score cp 5670 wdl 1000 0 0 sp 1000 nodes 73466926165 nps 218912828 hashfull 72 tbhits 11691686 time 335599 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7d8 a8b7 c2c3 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 c3c4 c8d8 f6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8h8 f3f4 h8g8 f4f5 g8h8 g6f6 h8g8 f5e6 d7e6 f6e6 b8d7 e6d7

info 6 minutes
info depth 87 seldepth 91 multipv 1 score cp 5782 wdl 1000 0 0 sp 1000 nodes 78691665743 nps 218586746 hashfull 74 tbhits 11837963 time 360002 pv h3h4

info 7 minutes
info depth 87 seldepth 92 multipv 1 score cp 9911 wdl 1000 0 0 sp 1000 nodes 92109245638 nps 219306683 hashfull 98 tbhits 41783875 time 420002 pv h3h4
info depth 88 seldepth 95 multipv 1 score cp 9969 wdl 1000 0 0 sp 1000 nodes 92593016907 nps 219409532 hashfull 98 tbhits 42054832 time 422010 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f7 f4g5 f7g7 f3f4 g7h7 g5f6 h7g8 c3c4 g8f8 f2f3 f8g8 f6e7 g8g7 e7d8 g7g6 d8c8 g6h5 c8b8 h5h4 b8c8 h4g3 c8d7 g3f2 d7e6 f2e3 d6d7 e3d4 d7d8q d4c5 e6f7 c5c4 e5e6 c4b4 d8d4 b4a5 e6e7 c6c5 d4c5 a5a4

info 8 minutes
info depth 88 seldepth 95 multipv 1 score cp 9969 wdl 1000 0 0 sp 1000 nodes 106544365251 nps 221966502 hashfull 104 tbhits 59448268 time 480002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8d8 g6f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f7 f4g5 f7g7 f3f4 g7h7 g5f6 h7g8 c3c4 g8f8 f2f3 f8g8 f6e7 g8g7 e7d8 g7g6 d8c8 g6h5 c8b8 h5h4 b8c8 h4g3 c8d7 g3f2 d7e6 f2e3 d6d7 e3d4 d7d8q d4c5 e6f7 c5c4 e5e6 c4b4 d8d4 b4a5 e6e7 c6c5 d4c5 a5a4

info depth 89 seldepth 97 multipv 1 score mate 54 wdl 1000 0 0 sp 1000 nodes 117658012096 nps 223432965 hashfull 114 tbhits 84324905 time 526592 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8h8 g6f6 h8h7 c3c4 h7h8 f3f4 h8h7 f4f5 e6f5 f6f5 h7h6 e5e6 d7e6 f5e6 h6g6 d6d7 b8d7 e6d7 g6g7 d7c6 g7f7 c6b6 f7e7 c5c6 e7d8 f2f4 d8e8 c6c7 e8d7 b6b7

info depth 90 seldepth 94 multipv 1 score mate 54 wdl 1000 0 0 sp 1000 nodes 119236332115 nps 223693670 hashfull 116 tbhits 86496311 time 533034 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f8 f4g5 f8g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 f3f4 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 e7f6 a8b7 f4f5 b7c8 f6g6 e6f5 g6f5 c8d8 f5g6 d8e8 g6g7 e8d8 f3f4 d8c8

info 9 minutes

info depth 90 seldepth 94 multipv 1 score mate 54 wdl 1000 0 0 sp 1000 nodes 120928166179 nps 223940219 hashfull 118 tbhits 89215271 time 540002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f8 f4g5 f8g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 f3f4 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 e7f6 a8b7 f4f5 b7c8 f6g6 e6f5 g6f5 c8d8 f5g6 d8e8 g6g7 e8d8 f3f4 d8c8

info depth 91 seldepth 97 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 131201526451 nps 225713736 hashfull 125 tbhits 96950459 time 581274 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f8 f4g5 f8g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 f3f4 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e8 c8b7 f4f5 e6f5 f2f4 b7a7 e8e7 a7b7 e7f6 b7c8 f6f5 c8d8 f5g6 d8e8 g6g7 e8d8 g7f7 d8c8 f4f5

info depth 92 seldepth 95 multipv 1 score mate 55 wdl 1000 0 0 sp 1000 nodes 132829943980 nps 226014272 hashfull 125 tbhits 97320490 time 587706 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 f6g6 c8d8 g6g5 d8e8 g5f4 e8f7 f4g5 f7g7 f3f4 g7f7 g5h6 f7f8 h6g6 f8g8 c3c4 g8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 e7f6 a8b7 f6g6 b7c8 f4f5 e6f5 g6f5 c8d8 f5f6 d8e8 f6g7 e8d8 f3f4 d8e8

info 10 minutes

info depth 92 seldepth 95 multipv 1 score mate 55 wdl 1000 0 0 sp 1000 nodes 135913783894 nps 226522218 hashfull 125 tbhits 97787523 time 600002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 f6g6 c8d8 g6g5 d8e8 g5f4 e8f7 f4g5 f7g7 f3f4 g7f7 g5h6 f7f8 h6g6 f8g8 c3c4 g8f8 g6f6 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 e7f6 a8b7 f6g6 b7c8 f4f5 e6f5 g6f5 c8d8 f5f6 d8e8 f6g7 e8d8 f3f4 d8e8

info depth 93 seldepth 97 multipv 1 score mate 54 wdl 1000 0 0 sp 1000 nodes 158135855881 nps 229981000 hashfull 125 tbhits 101879142 time 687604 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 f6g6 c8d8 g6g5 d8e8 g5f4 e8f8 f4g5 f8g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 f3f4 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 f4f5 e6f5 f3f4 a8b7 e7f6 b7c8 f6f5 c8d8 f5g6 d8e8 g6g7 e8d8 f4f5 d8e8 f5f6

info depth 94 seldepth 100 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 210174470805 nps 235413901 hashfull 130 tbhits 106112789 time 892787 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8h8 f3f4 h8g8 g6f6 g8f8 c3c4 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 f4f5 e6f5 f3f4 a8b7 e7f6 b7c8 f6f5 c8d8 f5g6 d8e8 g6g7 e8d8 f4f5 d8e8 f5f6 e8d8 f6f7 d8c8

info 15 minutes

info depth 94 seldepth 100 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 212026836019 nps 235584849 hashfull 130 tbhits 106126409 time 900002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8h8 f3f4 h8g8 g6f6 g8f8 c3c4 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 f4f5 e6f5 f3f4 a8b7 e7f6 b7c8 f6f5 c8d8 f5g6 d8e8 g6g7 e8d8 f4f5 d8e8 f5f6 e8d8 f6f7 d8c8

info 20 minutes

info depth 94 seldepth 100 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 289120854782 nps 240933644 hashfull 131 tbhits 108215751 time 1200002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7a8 d8e7 a8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7g8 h6g6 g8h8 f3f4 h8g8 g6f6 g8f8 c3c4 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 f2f3 b7a8 f4f5 e6f5 f3f4 a8b7 e7f6 b7c8 f6f5 c8d8 f5g6 d8e8 g6g7 e8d8 f4f5 d8e8 f5f6 e8d8 f6f7 d8c8

info depth 95 seldepth 100 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 298887891367 nps 241511126 hashfull 131 tbhits 108237921 time 1237574 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8h7 f6e7 h7g6 e7d8 g6f5 d8c8 f5e5 c8b8 e5d4 b8c8 d4c5 c8d7 c5b4 d7c6 b4a5 c6c5 a5a4 d6d7 a4b3 d7d8q e6e5 d8b8 b3c2 b8e5 a6a5 e5e3 c2b2 e3d2 b2a3 d2a5 a3b3 a5d2 b3a3 d2b4 a3a2

info 25 minutes

info depth 95 seldepth 100 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 367043108771 nps 244695079 hashfull 135 tbhits 112771664 time 1500002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8h7 f6e7 h7g6 e7d8 g6f5 d8c8 f5e5 c8b8 e5d4 b8c8 d4c5 c8d7 c5b4 d7c6 b4a5 c6c5 a5a4 d6d7 a4b3 d7d8q e6e5 d8b8 b3c2 b8e5 a6a5 e5e3 c2b2 e3d2 b2a3 d2a5 a3b3 a5d2 b3a3 d2b4 a3a2

info depth 95 seldepth 100 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 444438172087 nps 246909821 hashfull 135 tbhits 113386914 time 1800002 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8h7 f6e7 h7g6 e7d8 g6f5 d8c8 f5e5 c8b8 e5d4 b8c8 d4c5 c8d7 c5b4 d7c6 b4a5 c6c5 a5a4 d6d7 a4b3 d7d8q e6e5 d8b8 b3c2 b8e5 a6a5 e5e3 c2b2 e3d2 b2a3 d2a5 a3b3 a5d2 b3a3 d2b4 a3a2
?

info depth 96 seldepth 100 multipv 1 score mate 53 wdl 1000 0 0 sp 1000 nodes 446941674444 nps 246870044 hashfull 135 tbhits 113394103 time 1810433 pv h3h4 c8d8 h4g5 d8e8 g5g6 e8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a8 d8c8 a8a7 c8c7 a7a8 c7b6 f5f4 b6c7 a8a7 c7d8 a7b7 d8e7 b7c8 e7f6 c8d8 f6g5 d8e8 g5f4 e8f7 f4g5 f7g7 c3c4 g7f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8h7 f6e7 h7g6 e7d8 g6f5 d8c8 f5e5 c8b8 e5d4 b8c8 d4c5 c8d7 c5b4 d7c6 b4a5 c6c5 a5a4 d6d7 a4b3 d7d8q e6e5 d8b8 b3c2 b8e5 a6a5 e5e3 c2b2 e3d2 b2a3 d2a5 a3b3 a5d2 b3a3 d2b4 a3a2
bestmove h3h4 ponder c8d8

[Dann Corbit]

I want to know what you changed.
It might be important for many engines besides your modified version.

[zullil]

Wow, when I tried Cfish on this:

[d]1n1k4/3p4/p1pPp3/P1P1PpK1/5p2/5P2/2P2P2/8 b - -

It showed this:

63/10 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (10.438.957) 6184 TB:808
64/09 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (10.446.771) 6130 TB:808
65/10 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (10.480.048) 6150 TB:808
66/09 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (10.486.533) 6154 TB:808
67/10 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (10.496.838) 6160 TB:808
68/09 0:01 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (10.513.835) 6116 TB:808
69/49 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.c3 Kf7 7.Kh5 Kg7 8.Kg5 Kf7 9.Kh6 Kf8 (65.349.090) 5359 TB:3.447
70/28 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.c3 Kf7 7.Kh5 Kg7 8.Kg5 Kf7 9.Kh6 Kf8 10.c4 Ke8 11.Kg7 Kd8 12.Kf7 Kc8 13.Ke7 Kb7 14.Kf8 Kc8 (66.074.994) 5360 TB:3.501
71/27 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 (66.145.206) 5360 TB:3.508
72/10 0:12 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh5 Kg7 6.Kg5 (67.953.949) 5368 TB:3.521
73/10 0:18 0.00 1...Ke8 2.Kg6 Kf8 3.Kf6 Ke8 4.Kg5 Kf7 5.Kh6 Kg8 6.Kg6 (97.908.477) 5331 TB:3.897

I saw nothing new for 5 minutes, so I decided to stop it. And then it crashed

These positions are truly engine crackers.

Cfish-dev searching the root position seems to be doing well ... so far:

Code: Select all

$ ./cfish 
Cfish 080720 64 POPCNT NUMA by Syzygy based on Stockfish
info string NUMA enabled.
setoption name Threads value 20
setoption name Hash value 65536
position fen 1n6/k2p4/p1pPp3/P1P1Pp2/5p2/5P2/2P2P2/4K3 w 0 1
d

 +---+---+---+---+---+---+---+---+
 |   | n |   |   |   |   |   |   | 8
 +---+---+---+---+---+---+---+---+
 | k |   |   | p |   |   |   |   | 7
 +---+---+---+---+---+---+---+---+
 | p |   | p | P | p |   |   |   | 6
 +---+---+---+---+---+---+---+---+
 | P |   | P |   | P | p |   |   | 5
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   | p |   |   | 4
 +---+---+---+---+---+---+---+---+
 |   |   |   |   |   | P |   |   | 3
 +---+---+---+---+---+---+---+---+
 |   |   | P |   |   | P |   |   | 2
 +---+---+---+---+---+---+---+---+
 |   |   |   |   | K |   |   |   | 1
 +---+---+---+---+---+---+---+---+
   a   b   c   d   e   f   g   h

Fen: 1n6/k2p4/p1pPp3/P1P1Pp2/5p2/5P2/2P2P2/4K3 w - - 0 1
Key: F6C8A658DA2611EC
Checkers: 
go infinite
info string Binding thread 0 to node 0.
info string Binding thread 1 to node 0.
info string Binding thread 2 to node 0.
info string Binding thread 3 to node 0.
info string Binding thread 4 to node 0.
info string Binding thread 5 to node 0.
info string Binding thread 6 to node 0.
info string Binding thread 7 to node 0.
info string Binding thread 8 to node 0.
info string Binding thread 9 to node 0.
info string Binding thread 10 to node 1.
info string Binding thread 11 to node 1.
info string Binding thread 12 to node 1.
info string Binding thread 13 to node 1.
info string Binding thread 14 to node 1.
info string Binding thread 15 to node 1.
info string Binding thread 16 to node 1.
info string Binding thread 17 to node 1.
info string Binding thread 18 to node 1.
info string Binding thread 19 to node 1.
info depth 1 seldepth 0 multipv 1 score cp -205 nodes 93 nps 46500 tbhits 0 time 2 pv e1d2
info depth 2 seldepth 1 multipv 1 score cp -150 nodes 702 nps 351000 tbhits 0 time 2 pv e1d2 a7b7
info depth 3 seldepth 2 multipv 1 score cp -201 nodes 1314 nps 657000 tbhits 0 time 2 pv e1d2 a7b7 d2c3
info depth 4 seldepth 3 multipv 1 score cp -201 nodes 1838 nps 919000 tbhits 0 time 2 pv e1d2 a7b7 d2c3
info depth 5 seldepth 4 multipv 1 score cp -175 nodes 2460 nps 1230000 tbhits 0 time 2 pv e1d2 a7b7 d2c3 b7a8
info depth 6 seldepth 5 multipv 1 score cp -133 nodes 3361 nps 1680500 tbhits 0 time 2 pv e1d2 a7b7 d2c3 b7c8 c3d3
info depth 7 seldepth 8 multipv 1 score cp 0 nodes 5831 nps 2915500 tbhits 0 time 2 pv e1d2 a7b7 d2c3 b7c8 c3c4 c8d8
info depth 8 seldepth 7 multipv 1 score cp 0 nodes 8499 nps 4249500 tbhits 0 time 2 pv e1d2 a7a8 d2c3 a8a7
info depth 9 seldepth 11 multipv 1 score cp -114 nodes 28713 nps 14356500 tbhits 0 time 2 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5
info depth 10 seldepth 14 multipv 1 score cp -122 nodes 33348 nps 11116000 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5 e8f7 g5f4 f7g7 f4e3 g7g6 f3f4
info depth 11 seldepth 13 multipv 1 score cp -101 nodes 36123 nps 12041000 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5f4 g7g6
info depth 12 seldepth 16 multipv 1 score cp 0 nodes 42213 nps 14071000 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5h5
info depth 13 seldepth 14 multipv 1 score cp 0 nodes 45012 nps 15004000 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5 e8f7 g5h5 f7g8 h5g5 g8g7 g5h5
info depth 14 seldepth 16 multipv 1 score cp 0 nodes 49790 nps 16596666 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5 e8f7 g5h5 f7g8 h5g5
info depth 15 seldepth 16 multipv 1 score cp 0 nodes 53029 nps 17676333 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5 e8f7 g5h5 f7e8
info depth 16 seldepth 20 multipv 1 score cp 0 nodes 58375 nps 19458333 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5h5
info depth 17 seldepth 15 multipv 1 score cp 0 nodes 61240 nps 20413333 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5h5
info depth 18 seldepth 13 multipv 1 score cp 0 nodes 64944 nps 21648000 tbhits 0 time 3 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5h5
info depth 19 seldepth 18 multipv 1 score cp 0 nodes 69470 nps 23156666 tbhits 0 time 3 pv e1f1 a7b7 f1g1 b7c8 g1g2 c8d8 g2h3 d8e8 h3h4 e8f8 h4g5 f8g7 g5h5 g7f7 h5g5
info depth 20 seldepth 13 multipv 1 score cp 0 nodes 76486 nps 19121500 tbhits 0 time 4 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7e8
info depth 21 seldepth 17 multipv 1 score cp 0 nodes 80414 nps 20103500 tbhits 0 time 4 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5h5 f8g7 h5g5 g7h7 g5h5
info depth 22 seldepth 20 multipv 1 score cp 0 nodes 86813 nps 21703250 tbhits 0 time 4 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5 g8g7 h5g5
info depth 23 seldepth 21 multipv 1 score cp 0 nodes 94228 nps 23557000 tbhits 0 time 4 pv e1f1 a7b7 f1g1 b7c8 g1g2 c8d8 g2h3 d8e8 h3h4 e8f8 h4g5 f8g7 g5h5 g7f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 24 seldepth 19 multipv 1 score cp 0 nodes 101783 nps 25445750 tbhits 0 time 4 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5 g8g7 h5g5
info depth 25 seldepth 23 multipv 1 score cp 0 nodes 109458 nps 27364500 tbhits 0 time 4 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 26 seldepth 22 multipv 1 score cp 0 nodes 118662 nps 29665500 tbhits 0 time 4 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 27 seldepth 17 multipv 1 score cp 0 nodes 127820 nps 25564000 tbhits 0 time 5 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 28 seldepth 22 multipv 1 score cp 0 nodes 139536 nps 27907200 tbhits 0 time 5 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 29 seldepth 19 multipv 1 score cp 0 nodes 150103 nps 30020600 tbhits 0 time 5 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5 g8g7 h5g5
info depth 30 seldepth 20 multipv 1 score cp 0 nodes 159977 nps 31995400 tbhits 0 time 5 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 31 seldepth 20 multipv 1 score cp 0 nodes 173187 nps 28864500 tbhits 0 time 6 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5 g8g7 h5g5 g7h7 g5h5
info depth 32 seldepth 20 multipv 1 score cp 0 nodes 188438 nps 31406333 tbhits 0 time 6 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5 g8g7 h5g5 g7h7 g5h5
info depth 33 seldepth 20 multipv 1 score cp 0 nodes 198523 nps 33087166 tbhits 0 time 6 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 34 seldepth 19 multipv 1 score cp 0 nodes 215940 nps 30848571 tbhits 0 time 7 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5 g8g7 h5g5 g7f7 g5h5
info depth 35 seldepth 21 multipv 1 score cp 0 nodes 233086 nps 33298000 tbhits 0 time 7 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6h5
info depth 36 seldepth 27 multipv 1 score cp 0 nodes 247307 nps 35329571 tbhits 0 time 7 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5 g8f7 g5h5 f7e8 h5g6 e8d8 g6g5 d8c8 g5h4 c8b7 h4h3 b7c8
info depth 37 seldepth 18 multipv 1 score cp 0 nodes 263646 nps 32955750 tbhits 0 time 8 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5
info depth 38 seldepth 18 multipv 1 score cp 0 nodes 280665 nps 35083125 tbhits 0 time 8 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5 g8f7 g5h5 f7f8
info depth 39 seldepth 16 multipv 1 score cp 0 nodes 292657 nps 36582125 tbhits 0 time 8 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5
info depth 40 seldepth 20 multipv 1 score cp 0 nodes 316263 nps 35140333 tbhits 0 time 9 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5 g8f7 g5h5 f7g7 h5g5 g7f8
info depth 41 seldepth 22 multipv 1 score cp 0 nodes 336783 nps 37420333 tbhits 0 time 9 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5 g8f7 g5h5 f7g7 h5g5 g7h8
info depth 42 seldepth 20 multipv 1 score cp 0 nodes 353975 nps 35397500 tbhits 0 time 10 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5 g8f7 g5h5 f7g7 h5g5 g7g8
info depth 43 seldepth 16 multipv 1 score cp 0 nodes 368041 nps 36804100 tbhits 0 time 10 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5
info depth 44 seldepth 16 multipv 1 score cp 0 nodes 396357 nps 36032454 tbhits 0 time 11 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7f8 g5g6 f8g8 g6g5
info depth 45 seldepth 14 multipv 1 score cp 0 nodes 419517 nps 38137909 tbhits 0 time 11 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5h5
info depth 46 seldepth 14 multipv 1 score cp 0 nodes 444653 nps 37054416 tbhits 0 time 12 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5h5
info depth 47 seldepth 31 multipv 1 score cp 0 nodes 483296 nps 40274666 tbhits 0 time 12 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5g5 f7g7 g5h5
info depth 48 seldepth 16 multipv 1 score cp 0 nodes 556174 nps 39726714 tbhits 0 time 14 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8e8 g6f6 e8f8
info depth 49 seldepth 23 multipv 1 score cp 0 nodes 613701 nps 40913400 tbhits 0 time 15 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5 e8f7 g5h5 f7e8 h5h6 e8d8 h6g6 d8c8 g6f7 c8b7 f7e7 b7a7 e7d8 a7b7
info depth 50 seldepth 14 multipv 1 score cp 0 nodes 646919 nps 40432437 tbhits 0 time 16 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8e8
info depth 51 seldepth 30 multipv 1 score cp 0 nodes 710651 nps 41803000 tbhits 0 time 17 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a7 d8c8 a7a8 c8c7 a8a7
info depth 52 seldepth 25 multipv 1 score cp 0 nodes 814370 nps 42861578 tbhits 0 time 19 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 53 seldepth 25 multipv 1 score cp 0 nodes 912754 nps 43464476 tbhits 0 time 21 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 54 seldepth 29 multipv 1 score cp 0 nodes 1026004 nps 44608869 tbhits 0 time 23 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 f6g6
info depth 55 seldepth 32 multipv 1 score cp 0 nodes 1130366 nps 43475615 tbhits 0 time 26 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7d8 b7a7 d8c8 a7a8 c3c4 a8a7 c8c7 a7a8
info depth 56 seldepth 25 multipv 1 score cp 0 nodes 1225406 nps 43764500 tbhits 0 time 28 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 57 seldepth 25 multipv 1 score cp 0 nodes 1360695 nps 43893387 tbhits 0 time 31 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 58 seldepth 25 multipv 1 score cp 0 nodes 1415695 nps 44240468 tbhits 0 time 32 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 59 seldepth 27 multipv 1 score cp 0 nodes 1496965 nps 44028382 tbhits 0 time 34 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6h7 f8f7
info depth 60 seldepth 23 multipv 1 score cp 0 nodes 1589316 nps 44147666 tbhits 0 time 36 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6h7 f8f7
info depth 61 seldepth 25 multipv 1 score cp 0 nodes 1640815 nps 44346351 tbhits 0 time 37 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 62 seldepth 35 multipv 1 score cp 0 nodes 1749811 nps 43745275 tbhits 0 time 40 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e8 c8b7 e8d8 b7a8 d8c7 a8a7 c7c8 a7a8 c3c4 a8a7 c8c7 a7a8 c7c8
info depth 63 seldepth 16 multipv 1 score cp 0 nodes 1829655 nps 44625731 tbhits 0 time 41 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 64 seldepth 35 multipv 1 score cp 0 nodes 2180970 nps 45436875 tbhits 0 time 48 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7g6 c8b7 g6h5 b7c8 h5g5 c8b7 g5h5
info depth 65 seldepth 27 multipv 1 score cp 0 nodes 2300230 nps 46004600 tbhits 0 time 50 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7g6 d8c8 g6g5 c8b7 g5h5 b7c8
info depth 66 seldepth 26 multipv 1 score cp 0 nodes 2608925 nps 47435000 tbhits 0 time 55 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6h7 f8f7 h7h6
info depth 67 seldepth 25 multipv 1 score cp 0 nodes 2716326 nps 47654842 tbhits 0 time 57 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 68 seldepth 33 multipv 1 score cp 0 nodes 2792291 nps 48142948 tbhits 0 time 58 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c7 a8a7 c7c8 a7a8
info depth 69 seldepth 28 multipv 1 score cp 0 nodes 3059287 nps 48560111 tbhits 0 time 63 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 70 seldepth 44 multipv 1 score cp 0 nodes 3426933 nps 49665695 tbhits 0 time 69 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c7 a8a7 c7c8 a7a8 c8d8 a8b7 d8e7 b7a7 e7f8 a7b7 f8g7 b7a7 g7g6 a7a8 g6f6 a8b7 f6g5 b7a8
info depth 71 seldepth 20 multipv 1 score cp 0 nodes 3901651 nps 50021166 tbhits 0 time 78 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 72 seldepth 31 multipv 1 score cp 0 nodes 5950021 nps 53125187 tbhits 0 time 112 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7d8 b7a8 d8c7 a8a7 c7c8 a7a8
info depth 73 seldepth 45 multipv 1 score cp 0 nodes 6450925 nps 53757708 tbhits 0 time 120 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7f6 c8b7 f6g7 b7a7 g7f7 a7b7 f7g8 b7c8 g8h7 c8d8 h7g7 d8c8 g7h6 c8b7 h6h5 b7c8 h5g5 c8b7 g5g6
info depth 74 seldepth 35 multipv 1 score cp 0 nodes 7029974 nps 54076723 tbhits 0 time 130 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7f6 c8b7 f6g7 b7a7 g7g6 a7a8 g6h6 a8a7 h6g5 a7b7 g5h5 b7c8 h5g5
info depth 75 seldepth 21 multipv 1 score cp 0 nodes 7214313 nps 54242954 tbhits 0 time 133 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 76 seldepth 20 multipv 1 score cp 0 nodes 7480596 nps 54207217 tbhits 0 time 138 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 77 seldepth 31 multipv 1 score cp 0 nodes 7656987 nps 54304872 tbhits 0 time 141 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7e8 b7a8 e8f8 a8a7 f8f7 a7b7
info depth 78 seldepth 35 multipv 1 score cp 0 nodes 7878461 nps 54334213 tbhits 0 time 145 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7e8 b7a8 e8f8 a8a7 f8f7 a7b7
info depth 79 seldepth 31 multipv 1 score cp 0 nodes 8201350 nps 54675666 tbhits 0 time 150 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7e8 b7a8 e8f8 a8a7 f8f7 a7b7
info depth 80 seldepth 23 multipv 1 score cp 0 nodes 8591546 nps 55074012 tbhits 0 time 156 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 81 seldepth 20 multipv 1 score cp 0 nodes 8904982 nps 55310447 tbhits 0 time 161 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 82 seldepth 21 multipv 1 score cp 0 nodes 9218591 nps 55201143 tbhits 0 time 167 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 83 seldepth 21 multipv 1 score cp 0 nodes 9536419 nps 55444296 tbhits 0 time 172 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 84 seldepth 25 multipv 1 score cp 0 nodes 9919771 nps 55417715 tbhits 0 time 179 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7h7 d8c8 h7g6 c8d8
info depth 85 seldepth 25 multipv 1 score cp 0 nodes 10160223 nps 55520344 tbhits 0 time 183 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7h7 d8c8 h7g6 c8d8 g6f6
info depth 86 seldepth 24 multipv 1 score cp 0 nodes 10611767 nps 55851405 tbhits 0 time 190 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7h7 d8c8 h7g6 c8d8
info depth 87 seldepth 23 multipv 1 score cp 0 nodes 11020884 nps 55943573 tbhits 0 time 197 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8g7
info depth 88 seldepth 35 multipv 1 score cp 0 nodes 12214221 nps 56547319 tbhits 0 time 216 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7e8 b7a8 e8f8 a8a7 f8f7 a7b7 f7g6 b7a8 g6h5 a8b7
info depth 89 seldepth 20 multipv 1 score cp 0 nodes 12748799 nps 56914281 tbhits 0 time 224 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 90 seldepth 20 multipv 1 score cp 0 nodes 12986007 nps 56956171 tbhits 0 time 228 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 91 seldepth 51 multipv 1 score cp 0 nodes 15474561 nps 57526249 tbhits 0 time 269 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f7 d8c8 f7e7 c8b7 e7e8 b7a8 e8f8 a8a7 f8f7 a7b7 f7g6 b7a8 g6h5 a8b7 h5h6 b7a7 h6g5 a7a8 g5h4 a8a7 c3c4 a7a8 h4g5 a8a7
info depth 92 seldepth 29 multipv 1 score cp 0 nodes 16009085 nps 57794530 tbhits 0 time 277 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7g6 d8e8 g6f6 e8f8 c3c4 f8e8 f6g7 e8d8 g7f6
info depth 93 seldepth 31 multipv 1 score cp 0 nodes 20756242 nps 58966596 tbhits 0 time 352 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7g6 d8e8 g6f6 e8f8 c3c4 f8e8 f6g7 e8d8 g7h6 d8e8 h6g6
info depth 94 seldepth 21 multipv 1 score cp 0 nodes 21574101 nps 59107126 tbhits 0 time 365 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 95 seldepth 23 multipv 1 score cp 0 nodes 22420428 nps 59156802 tbhits 0 time 379 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 96 seldepth 54 multipv 1 score cp 0 nodes 32720229 nps 60818269 tbhits 0 time 538 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7e8 b7a8 e8f8 a8a7 f8f7 a7b7 f7g6 b7a8 g6h5 a8b7 h5h4 b7c8 h4g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8e8 c3c4 e8d8 f3f4 d8c8 g6g7 c8d8
info depth 97 seldepth 43 multipv 1 score cp 0 nodes 33638975 nps 60940172 tbhits 0 time 552 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 98 seldepth 31 multipv 1 score cp 0 nodes 34201257 nps 60964807 tbhits 0 time 561 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7e8 b7a8 e8d8 a8b7 d8e7 b7a7 e7e8
info depth 99 seldepth 20 multipv 1 score cp 0 nodes 34833635 nps 61111640 tbhits 0 time 570 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g6 e8f8
info depth 100 seldepth 21 multipv 1 score cp 0 nodes 35391327 nps 61124917 tbhits 0 time 579 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 101 seldepth 27 multipv 1 score cp 0 nodes 36046944 nps 61304326 tbhits 0 time 588 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7g8 d8e8
info depth 102 seldepth 21 multipv 1 score cp 0 nodes 36759776 nps 61368574 tbhits 0 time 599 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 103 seldepth 21 multipv 1 score cp 0 nodes 88696375 nps 61982092 hashfull 8 tbhits 0 time 1431 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 104 seldepth 21 multipv 1 score cp 0 nodes 89586035 nps 61997256 hashfull 8 tbhits 0 time 1445 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 105 seldepth 63 multipv 1 score cp 0 nodes 92717655 nps 62101577 hashfull 8 tbhits 0 time 1493 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g7 e8d8 g7g8 d8e8
info depth 106 seldepth 21 multipv 1 score cp 0 nodes 94582924 nps 62184696 hashfull 8 tbhits 0 time 1521 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 107 seldepth 21 multipv 1 score cp 0 nodes 96864403 nps 62172274 hashfull 9 tbhits 0 time 1558 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 108 seldepth 19 multipv 1 score cp 0 nodes 98000991 nps 62183369 hashfull 9 tbhits 0 time 1576 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 109 currmove e1d2 currmovenumber 2
info depth 109 currmove e1d1 currmovenumber 3
info depth 109 currmove e1e2 currmovenumber 4
info depth 109 currmove c2c3 currmovenumber 5
info depth 109 currmove c2c4 currmovenumber 6
info depth 109 seldepth 22 multipv 1 score cp 0 nodes 217550312 nps 62857645 hashfull 16 tbhits 0 time 3461 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g5 e8f7 g5h6 f7e8
info depth 110 currmove e1f1 currmovenumber 1
info depth 110 currmove e1d2 currmovenumber 2
info depth 110 currmove e1d1 currmovenumber 3
info depth 110 currmove e1e2 currmovenumber 4
info depth 110 currmove c2c4 currmovenumber 5
info depth 110 currmove c2c3 currmovenumber 6
info depth 110 seldepth 19 multipv 1 score cp 0 nodes 218420881 nps 62854929 hashfull 16 tbhits 0 time 3475 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 111 currmove e1f1 currmovenumber 1
info depth 111 currmove e1d2 currmovenumber 2
info depth 111 currmove e1e2 currmovenumber 3
info depth 111 currmove e1d1 currmovenumber 4
info depth 111 currmove c2c4 currmovenumber 5
info depth 111 currmove c2c3 currmovenumber 6
info depth 111 seldepth 23 multipv 1 score cp 0 nodes 247121100 nps 63105490 hashfull 17 tbhits 0 time 3916 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g5 e8f7 g5h6 f7f8 h6g5
info depth 112 currmove e1f1 currmovenumber 1
info depth 112 currmove e1d2 currmovenumber 2
info depth 112 currmove e1e2 currmovenumber 3
info depth 112 currmove e1d1 currmovenumber 4
info depth 112 currmove c2c3 currmovenumber 5
info depth 112 currmove c2c4 currmovenumber 6
info depth 112 seldepth 19 multipv 1 score cp 0 nodes 249371468 nps 63100067 hashfull 17 tbhits 0 time 3952 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 113 currmove e1f1 currmovenumber 1
info depth 113 currmove e1d2 currmovenumber 2
info depth 113 currmove e1e2 currmovenumber 3
info depth 113 currmove e1d1 currmovenumber 4
info depth 113 currmove c2c3 currmovenumber 5
info depth 113 currmove c2c4 currmovenumber 6
info depth 113 seldepth 19 multipv 1 score cp 0 nodes 250086119 nps 63105253 hashfull 17 tbhits 0 time 3963 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8
info depth 114 currmove e1f1 currmovenumber 1
info depth 114 currmove e1d2 currmovenumber 2
info depth 114 currmove e1e2 currmovenumber 3
info depth 114 currmove e1d1 currmovenumber 4
info depth 114 currmove c2c4 currmovenumber 5
info depth 114 currmove c2c3 currmovenumber 6
info depth 114 seldepth 23 multipv 1 score cp 0 nodes 3084256893 nps 61086490 hashfull 157 tbhits 0 time 50490 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4h5 e8f7 h5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c2c3 f8e8 f6g5 e8f7 g5h6 f7f8 h6g5
info depth 115 currmove e1f1 currmovenumber 1
info depth 115 seldepth 36 multipv 1 score cp 9 lowerbound nodes 3087774639 nps 61090824 hashfull 158 tbhits 0 time 50544 pv e1f1
info depth 114 currmove e1f1 currmovenumber 1
info depth 115 seldepth 68 multipv 1 score cp 18 lowerbound nodes 4374104024 nps 62238247 hashfull 197 tbhits 0 time 70280 pv e1f1
info depth 113 currmove e1f1 currmovenumber 1
info depth 115 seldepth 85 multipv 1 score cp 32 lowerbound nodes 6488337907 nps 63862850 hashfull 236 tbhits 0 time 101598 pv e1f1
info depth 112 currmove e1f1 currmovenumber 1
info depth 115 seldepth 85 multipv 1 score cp 51 lowerbound nodes 17737998900 nps 64622835 hashfull 521 tbhits 0 time 274485 pv e1f1
info depth 111 currmove e1f1 currmovenumber 1
info depth 115 seldepth 85 multipv 1 score cp 78 lowerbound nodes 18011059366 nps 64709540 hashfull 527 tbhits 0 time 278337 pv e1f1
info depth 110 currmove e1f1 currmovenumber 1
info depth 115 seldepth 85 multipv 1 score cp 114 lowerbound nodes 74848990325 nps 72933678 hashfull 817 tbhits 0 time 1026261 pv e1f1
info depth 109 currmove e1f1 currmovenumber 1
info depth 115 seldepth 85 multipv 1 score cp 160 lowerbound nodes 76521587619 nps 72937441 hashfull 822 tbhits 0 time 1049140 pv e1f1
info depth 108 currmove e1f1 currmovenumber 1
info depth 115 seldepth 112 multipv 1 score cp 221 lowerbound nodes 81176836126 nps 72604820 hashfull 858 tbhits 0 time 1118064 pv e1f1
info depth 107 currmove e1f1 currmovenumber 1
info depth 115 seldepth 112 multipv 1 score cp 299 lowerbound nodes 104992463687 nps 73853527 hashfull 887 tbhits 0 time 1421631 pv e1f1
info depth 106 currmove e1f1 currmovenumber 1
info depth 115 seldepth 112 multipv 1 score cp 399 lowerbound nodes 111922160144 nps 74040515 hashfull 907 tbhits 0 time 1511634 pv e1f1
info depth 105 currmove e1f1 currmovenumber 1
info depth 115 seldepth 112 multipv 1 score cp 526 lowerbound nodes 123692607130 nps 74294583 hashfull 916 tbhits 0 time 1664894 pv e1f1
info depth 104 currmove e1f1 currmovenumber 1
info depth 115 seldepth 112 multipv 1 score cp 687 lowerbound nodes 144182784401 nps 74575540 hashfull 928 tbhits 0 time 1933379 pv e1f1
info depth 103 currmove e1f1 currmovenumber 1
info depth 115 seldepth 121 multipv 1 score cp 891 lowerbound nodes 150526771235 nps 74366378 hashfull 941 tbhits 0 time 2024124 pv e1f1
info depth 102 currmove e1f1 currmovenumber 1
info depth 115 seldepth 121 multipv 1 score cp 1149 lowerbound nodes 189936411837 nps 74083104 hashfull 980 tbhits 0 time 2563829 pv e1f1
info depth 101 currmove e1f1 currmovenumber 1

[hgm]

This is a truly amazing study, which once again teaches us what a beautiful game Chess really is. I admit I couldn't solve it. After hard thinking, just because I was told this is a win, I realized that the crux was to force the black Pawn to move ahead to the unprotected location by zugzwang. But I missed the trick by which you can prevent the black King to close off the opening in the Pawn chain, outrunning it by taking the shortcut only accessible to the white King.

Still, I have the feeling that it should be quite easy for an AI to solve this study. Not by forward search, but by retrograde analysis. Only the Kings move. So an EGT for a fixed Pawn constellation (a 'P-slice' in EGT jargon) only contains 4K positions (for each side to move). So you could generate those for thousands of P-slices in less than a second.

The whole trick is just to select the P-slices you want to do this for. If you consider all Pawn constellation reachable from the given position, there will also be constellations where white has given away all its Pawns, and black has pushed up some Pawns to liberate the Knight, making 3-men P-slices. But of course white only lives here by the fact that he cannot be forced to give up any of his Pawns at all. Black Pawns can also not just disappear, when they are protected and there is only a King to attack them.

So a viable algorithm for solving for a win seems to be to take away the Kings, generate a tree of Pawn cosntellations starting from the given one, where you allow Pawns to move and capture, and allow unprotected black Pawns to disappear. This will lead to an amazingly low number of Pawn constellations. Positions with Pawns on 8 rank (i.e. promoted) can initially be assumed to be wins when that side is on move. If you want you can build the EGT for the 3-men piece slices with Q, or even with R; they will likely all be very fast mates. From those promoted P-slices you will then work your way back through the predecessor P-slices with only mobile Kings, all the way to the given position.

I expect this to only take a fraction of a second.

[mhouppin]

Tried analyzing this position with Stash 18.1, here's what I got so far :

Code: Select all

info depth 69 seldepth 74 multipv 1 nodes 4790204070 nps 8030410 hashfull 398 time 596508 score cp 206 pv e1f1 a7b7 f1g2 b7c8 g2h3 c8d8 h3h4 d8e8 h4g5 e8f7 g5h6 f7f8 h6g6 f8g8 c2c3 g8f8 g6f6 f8e8 f6g7 e8d8 g7f8 d8c8 f8e7 c8b7 e7f6 b7c8 f6g5 c8d8 g5f4 d8e8 f4g5 e8f7 g5h6 f7f8 h6g6 f8g8 g6f6 g8f8 c3c4 f5f4 f6g5 f8f7 g5f4 f7g6 f4g4 g6h6 f3f4 h6g6 f4f5 g6f7 g4g5 f7g7 f2f3 g7f7 g5h6 f7f8 h6g6 f8e8 f3f4 e8f8 f5e6

I think it could be an issue with the aspiration window of SF-like engines, because of the search depth reduction when failing above beta. Perhaps it could be interesting to do an analysis without it.

[hgm]

I guess the way to run the search on Pawn constellations is to use some kind of iterative deepening on the number of 'bad' mutations. Where disappearence of Pawns of the winning side, (representing capture by King), or liberating the Knight would be considered bad. For each new Pawn constellation the search can first check all previously unmovable pieces still have no moves. (If they do, it would have to switch to using 3-men EGT. When a piece of the winning side gets liberated, this would of course still be good, but for a piece of the losing side it is probably the last thing you would want to attempt.)

In the first iteration you wouldn't allow any bad mutations, i.e. in the Balthy position white would have to preserve all its Pawns except that it can allow capture of one of f5 by a black Pawn. It could never push the e-Pawn, though, because that would allow d7 to move, and liberate the Knight. So the only reachable Pawn structures under these restrictions would be those where the black f-Pawns get pushed or lost (4 constellations), where the white c-Pawn gets pushed (3 constellations), where white pushes his own f-Pawns after the black Pawns have disappeared (21 constellations when both are still there, 6 constellations with only one). Where the black e-Pawn could still be present or not. That is 3*(4 + 3 + 2*21 + 6) = 165 Pawn constellations. For each of these you would have to build a 2-men EGT, plus a few 3-men EGT for checkmating black with a Queen after promotion.