Discussion of anything and everything relating to chess playing software and machines.
Moderators: hgm , Rebel , chrisw
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Sun Aug 18, 2019 11:38 pm
[d]rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 2
Stockfish-dev with default settings (so one search thread) takes 12 seconds!
info depth 46 seldepth 64 multipv 1 score mate 4 nodes 37419423 nps 2935547 hashfull 1000 tbhits 0 time 12747 pv g6f7 b4b3 f7e7 h6h5 e7d8 b3b2 e5c7
This is ten times longer than it takes Stockfish-dev to complete perft(7) in this position.
Code: Select all
Position: 1/1
d7h3: 959997
d7a4: 2679075
d7g4: 1162314
d7b5: 3073238
d7f5: 1081144
d7c6: 2904858
d7e6: 1270985
d7c8: 1444390
d7e8: 2278031
e5a1: 12358469
e5b2: 14678842
e5h2: 262943
e5c3: 10010219
e5g3: 524885
e5d4: 19844221
e5f4: 825443
e5d6: 658136
e5f6: 19835912
e5c7: 409743
e5g7: 17697726
g6f5: 1620839
g6h7: 1994376
g6h5: 898105
g6g7: 667781
g6f7: 2148923
Nodes searched: 121290595
===========================
Total time (ms) : 1201
Nodes searched : 121290595
Nodes/second : 100991336
How do other engines fare at finding the mate, say using one thread and 16 MB hash?
EDIT: Not surprisingly, Stockfish's perft is much faster than mine:
Code: Select all
FEN string = rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 2
Depth = 7
Leaf nodes = 121290595
Time taken = 3417 ms
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Mon Aug 19, 2019 12:05 am
Crafty v25.3 takes 0.9 seconds to find the mate.
Code: Select all
White(1): hash = 16M
hash table memory = 16M bytes (1M entries).
White(1): mt = 0
parallel threads disabled.
White(1): setboard rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 2
White(1): st 10
search time set to 10.00.
White(1): go
time surplus 0.00 time limit 10.00 (10.00)
depth time score variation (1)
28-> 0.90/10.00 Mat04 1. Kf7 b3 2. Ke7 b2 3. Kd8 b1=Q 4. Bxc7#
time=0.90(100%) nodes=7532072(7.5M) fh1=92% pred=0 nps=8.4M
chk=162.4K qchk=199.1K fp=2.0M mcp=731.6K 50move=1
LMReductions: 1/459.4K 2/322.2K 3/184.0K 4/42.4K 5/3.6K 6/5
null-move (R): 3/398.2K 4/95.2K 5/10.2K 6/1.6K 7/76
mate in 4 moves.
MikeB
Posts: 4889Joined: Thu Mar 09, 2006 6:34 amLocation: Pen Argyl, Pennsylvania
Post by MikeB Mon Aug 19, 2019 5:08 am
current Honey X5i ( based on current dev-SF), one thread 16 MB
Code: Select all
info depth 44 seldepth 106 multipv 1 score mate 4 nodes 32774413 nps 2447861 hashfull 1000 tbhits 0 time 13389 pv g6f7 b4b3 f7e7 h6h5 e7d8 g7g6 e5c7
same engine, same settings , one thread, 16 MB but this time with 7 man syzygy , total node count is just over 10% of above
Code: Select all
29 #4 3.57M 0:02.04 Kf7 b3 Ke8 b2 Kd8 b1=Q Bxc7#
28 +100.00 3.56M 0:02.04 Kxg7 b3 Kf8 b2 Bf5 b1=R Bxb1 Kc8 Ke8 Rf7 Kxf7 Kd7 Bf5+ Kd8 Kf8 h5 Kf7 h4 Bd6 h3 Bh2 Rb8 Bxb8 h2 Bxa7 Kc7
27 +100.00 3.56M 0:02.04 Kxg7 b3 Kf8 b2 Bf5 b1=R Bxb1 Kc8 Ke8 Rf7 Kxf7 Kd7 Bf5+ Kd8 Kf8 h5 Kf7 h4 Bd6 h3 Bh2 Rb8 Bxb8 h2 Bxa7 Kc7
26 +100.00 3.56M 0:02.04 Kxg7 b3 Kf8 b2 Bf5 b1=R Bxb1 Kc8 Ke8 Rf7 Kxf7 Kd7 Bf5+ Kd8 Kf8 h5 Kf7 h4 Bd6 h3 Bh2 Rb8 Bxb8 h2 Bxa7 Kc7
25 +100.00 3.56M 0:02.04 Kxg7 b3 Kf8 b2 Bf5 b1=R Bxb1 Kc8 Ke8 Rf7 Kxf7 Kd7 Bf5+ Kd8 Kf8 h5 Kf7 h4 Bd6 h3 Bh2 Rb8 Bxb8 h2 Bxa7 Kc7
24 +100.00 3.56M 0:02.04 Kxg7 b3 Kf8 b2 Bf5 b1=R Bxb1 Kc8 Ke8 Rf7 Kxf7 Kd7 Bf5+ Kd8 Kf8 h5 Kf7 h4
23 +73.63 3.53M 0:02.02 Kxg7 b3 Kf8 b2 Bf5 b1=R Bxb1 Kc8 Ke8 Rf7 Kxf7 Kd8 Be4 Rc8 Bf6+ Kc7 Bf5 h5 Be5+ Kd8 Bxc8 Kxc8
22 +17.15 1.64M 0:00.95 Bc6 b3 Bg2 h5 Kf5 h4 Kg4 Kc8 Bxa8 Rc4+ Kh3 Rb4 Bb2 g5 Bd5 Kc7 Bg8 Kb6 Bh7 Rf4 Be5 Rf3+ Kg2 g4 Be4 Rh3 Bd4+ Kxa6 Kg1 Ka5 Bxa7 b2 Kf2 Rb3
21 +20.06 1.31M 0:00.76 Bc6 b3 Bg2 h5 Kf5 h4 Kg4 Kc8 Bxa8 Rc4+ Kh3 Rb4 Bb2 g5 Bd5 Kc7 Bg8 Kb6 Bh7 Rf4 Be5 Rf3+ Kg4 Rg3+ Kf5 Kxa6 Bxg3 hxg3 Kg4 g2 Bd3+ Ka5
20 +20.76 894296 0:00.53 Bc6 b3 Bg2 h5 Kf5 h4 Kg4 Kc8 Bxa8 Rc4+ Kf3 g5 Bd5 g4+ Ke3 Rb4 Be6+ Kd8 Bf6+ Kc7 Bxh4 b2 Ba2 b1=Q Bxb1 Rxb1 Bf2 Rb3+ Ke2
19 +26.43 582086 0:00.35 Bc6 b3 Bg2 h5 Kf5 h4 Kg4 Kc8 Bxa8 Rc4+ Kh3 g5 Bd5 Rb4 Be6+ Kd8 Bf6+ Kc7 Bxg5 b2 Ba2 b1=Q Bxb1 Rxb1 Bf6 Kb6 Bd4+ Kxa6 Kxh4
18 +18.85 540687 0:00.33 Bc6 b3 Bd5 h5 Kf5 h4 Kg4 g5 Kh3 Kc8 Bxa8 Rc4 Bd5 Rb4 Be6+ Kd8 Bc3 b2 Ba2 b1=Q Bxb1 Rxb1
17 +17.96 493538 0:00.30 Bc6 b3 Bd5 h5 Kf5 h4 Kg4 g5 Kh3 Kc8 Bxa8 Rc5 Bh8 Rc4 Bd5 Rb4 Bb2 Kc7 Be5+ Kb6 Bb2 Kxa6 Bg2 Ka5 Bf6
16 +27.11 253824 0:00.16 Bc6 b3 Bd5 h5 Kf5 h4 Kg4 g5 Kxg5 h3 Kf4 h2 Ke3 b2 Bxb2 Rc5 Be5+ Kc8 Bb7+ Kd7 Bxh2
15 +21.55 137519 0:00.10 Kxg7 b3 Kxh6 b2 Bf5 b1=Q Bxb1 Kc8 Kg5 Rc5 Kf6 Kd8 Ke6 Rac8 Bd4 Ra5 Be4 Rxa6+ Kd5 Ke7 Bc5+ Kf7
14 +28.13 112254 0:00.08 Kxg7 b3 Kxh6 b2 Bf5 b1=Q Bxb1 Kc8 Bf5+ Kd8 Kg5 Rc5 Kf6 Rc6+ Kg7 Rb6
13 +20.35 100222 0:00.07 Kxg7 b3 Kg6 b2 Bf5 b1=Q Bxb1 Kc8 Bxc7 Kxc7 Ba2 Rd8 Bc4 Rd6+ Kh5 Kb6 Be2 Rf6
12 +27.17 22624 0:00.02 Bc6 b3 Bxc7+ Kxc7 Bxa8 h5 Kg5 Kb6 Be4 h4 Kg4 h3 Kg3 Kxa6 Kh2 Kb5 Kg3 a5
11 +37.28 10549 0:00.01 Bc6 b3 Bxc7+ Kxc7 Bxa8 h5 Kg5 Kb6 Be4 h4 Kg4 h3 Kg3 b2 Kh2 Ka5
10 +40.29 5078 0:00.01 Bc6 b3 Bxc7+ Kxc7 Bxa8 h5 Kg5 Kb6 Be4 Kxa6 Bg6 Kb5 Kxh5
9 +43.01 2551 0:00.00 Bc6 b3 Bxc7+ Kxc7 Bxa8 h5 Kxg7 b2 Be4 Kb6 Bg6
8 +43.78 1158 0:00.00 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kb6 Be4
7 +39.70 627 0:00.00 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kb6 Be4
6 +34.89 462 0:00.00 Bc6 b3 Bxc7+ Kxc7 Bxa8 h5 Kxh5
5 +28.93 331 0:00.00 Bc6 b3 Bxa8 Kxa8 Bxc7 b2
4 +41.25 132 0:00.00 Bc6 b3 Bxa8 Kxa8 Bxc7
3 +41.25 95 0:00.00 Bc6 b3 Bxa8 Kxa8
2 +41.25 58 0:00.00 Bc6 b3 Bxa8 Kxa8 Bxc7
1 +20.01 26 0:00.00 Bc6
1 Found 1511 tablebases
Joerg Oster
Posts: 937Joined: Fri Mar 10, 2006 4:29 pmLocation: Germany
Post by Joerg Oster Mon Aug 19, 2019 11:49 am
zullil wrote: ↑ Sun Aug 18, 2019 11:38 pm
[d]rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 2
Stockfish-dev with default settings (so one search thread) takes 12 seconds!
info depth 46 seldepth 64 multipv 1 score mate 4 nodes 37419423 nps 2935547 hashfull 1000 tbhits 0 time 12747 pv g6f7 b4b3 f7e7 h6h5 e7d8 b3b2 e5c7
Hi Louis,
this is with a single change in search.cpp.
Code: Select all
position fen rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 2
go mate 4
info depth 1 seldepth 1 multipv 1 score cp -391 nodes 26 nps 26000 tbhits 0 time 1 pv d7c6
info depth 2 seldepth 2 multipv 1 score cp -93 nodes 67 nps 67000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8 e5c7
info depth 3 seldepth 4 multipv 1 score cp -93 nodes 109 nps 109000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8
info depth 4 seldepth 5 multipv 1 score cp -93 nodes 166 nps 166000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8 e5c7
info depth 5 seldepth 6 multipv 1 score cp -247 nodes 374 nps 374000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8 e5c7 b3b2
info depth 6 seldepth 7 multipv 1 score cp -169 nodes 513 nps 513000 tbhits 0 time 1 pv d7c6 b4b3 e5c7 b8c7 c6a8 h6h5 g6h5
info depth 7 seldepth 8 multipv 1 score cp -110 nodes 694 nps 694000 tbhits 0 time 1 pv d7c6 b4b3 e5c7 b8c7 c6a8 c7b6 a8e4
info depth 8 seldepth 10 multipv 1 score cp -53 nodes 1288 nps 644000 tbhits 0 time 2 pv d7c6 b4b3 e5c7 b8c7 c6a8 c7b6 a8e4 h6h5 g6h5
info depth 9 seldepth 13 multipv 1 score mate 4 nodes 3273 nps 1091000 tbhits 0 time 3 pv g6f7 b4b3 f7e7 b3b2 e7d8 b2b1r
bestmove g6f7 ponder b4b3
Unfortunately, almost every change which will make the search a bit more careful, will probably fail rather quickly at fishtest's STC.
Also note, this change doesn't help at all in the original mate in 5 position for other reasons.
Jörg Oster
zullil
Posts: 6442Joined: Tue Jan 09, 2007 12:31 amLocation: PA USAFull name: Louis Zulli
Post by zullil Mon Aug 19, 2019 12:07 pm
Joerg Oster wrote: ↑ Mon Aug 19, 2019 11:49 am zullil wrote: ↑ Sun Aug 18, 2019 11:38 pm
[d]rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 2
Stockfish-dev with default settings (so one search thread) takes 12 seconds!
info depth 46 seldepth 64 multipv 1 score mate 4 nodes 37419423 nps 2935547 hashfull 1000 tbhits 0 time 12747 pv g6f7 b4b3 f7e7 h6h5 e7d8 b3b2 e5c7
Hi Louis,
this is with a single change in search.cpp.
Code: Select all
position fen rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 2
go mate 4
info depth 1 seldepth 1 multipv 1 score cp -391 nodes 26 nps 26000 tbhits 0 time 1 pv d7c6
info depth 2 seldepth 2 multipv 1 score cp -93 nodes 67 nps 67000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8 e5c7
info depth 3 seldepth 4 multipv 1 score cp -93 nodes 109 nps 109000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8
info depth 4 seldepth 5 multipv 1 score cp -93 nodes 166 nps 166000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8 e5c7
info depth 5 seldepth 6 multipv 1 score cp -247 nodes 374 nps 374000 tbhits 0 time 1 pv d7c6 b4b3 c6a8 b8a8 e5c7 b3b2
info depth 6 seldepth 7 multipv 1 score cp -169 nodes 513 nps 513000 tbhits 0 time 1 pv d7c6 b4b3 e5c7 b8c7 c6a8 h6h5 g6h5
info depth 7 seldepth 8 multipv 1 score cp -110 nodes 694 nps 694000 tbhits 0 time 1 pv d7c6 b4b3 e5c7 b8c7 c6a8 c7b6 a8e4
info depth 8 seldepth 10 multipv 1 score cp -53 nodes 1288 nps 644000 tbhits 0 time 2 pv d7c6 b4b3 e5c7 b8c7 c6a8 c7b6 a8e4 h6h5 g6h5
info depth 9 seldepth 13 multipv 1 score mate 4 nodes 3273 nps 1091000 tbhits 0 time 3 pv g6f7 b4b3 f7e7 b3b2 e7d8 b2b1r
bestmove g6f7 ponder b4b3
Unfortunately, almost every change which will make the search a bit more careful, will probably fail rather quickly at fishtest's STC.
Also note, this change doesn't help at all in the original mate in 5 position for other reasons.
Hi Jörg,
3 ms! That's more like it. Though the mating move does not appear in the PV.
Seriously, I wonder if Stockfish's testing methodology is now preventing Stockfish from reaching its true potential at longer time controls. I assume that the amount of reducing/pruning Stockfish does has evolved to be more or less optimal for Fishtest conditions. But at longer time controls, and given the ever-increasing power of hardware, all that reducing/pruning might actually be weakening.
But, of course, it's hard to get enough statistically meaningful data when each game takes 6 hours.
xr_a_y
Posts: 1871Joined: Sat Nov 25, 2017 2:28 pmLocation: France
Post by xr_a_y Mon Aug 19, 2019 12:17 pm
Hard one !
Took 47sec (57M nodes) for Minic dev
Code: Select all
40 9992 4726 57365970 59 1213 24126 g6f7 h6h5 f7e7 h5h4 e7d8 g7g6 e5c7
Dann Corbit
Posts: 12538Joined: Wed Mar 08, 2006 8:57 pmLocation: Redmond, WA USA
Post by Dann Corbit Mon Aug 19, 2019 8:50 pm
Code: Select all
Searching: rk6/p1rB2p1/P5Kp/4B3/1p6/8/8/8 w - - 0 1
infinite: 0 time: 0 increment: 0 moves to go: 0
1 -4.03 00:00 2947 Bc6
2 -0.54 00:00 7021 Bc6 b3
3 -0.54 00:00 7374 Bc6 b3 Bxc7+ Kxc7 Bxa8
4 -0.54 00:00 9639 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kb6
5 -0.79 00:00 10227 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kd6 Kxg7
6 -0.88 00:00 14385 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kd6 Be4 Ke5
7 -0.70 00:00 15861 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kd6 Be4 Ke5 Bb1
8 -0.46 00:00 24788 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kd6 Be4 Ke5 Bb1 h5 Kxh5
9 -0.97 00:00 63397 Bc6 b3 Bxc7+ Kxc7 Bxa8 b2 Be4 Kb6 Kxg7 h5 Kf6 h4
10 -1.84 00:00 119453 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kb6 Bd5 b2 Be4 Kxa6 Bf5 Kb5 Kxg7 a5 Kxh6 a4
11 -2.38 00:00 194160 Bc6 b3 Bxc7+ Kxc7 Bxa8 Kb6 Bd5 b2 Be4 Kxa6 Bf5 Kb5 Be4 a5 Kxg7 a4
12 -2.41 00:00 327962 Bf5 b3 Be4 b2 Bxb2 Re7 Bd5 Re8 Bxg7 Kc7 Bxa8 Rxa8 Bd4 Kc6 Kxh6 Kb5 Kg5 Rg8+ Kf4
13 -2.87 00:00 687770 Bf5 b3 Be4 b2 Bxb2 Re7 Bf3 Re8 Bxg7 Kc7 Bxa8 Rxa8 Bd4 Kc6 Kxh6 Kb5 Kg6 Kxa6 Kf5 Kb5 Bg7 Re8
14 #4 00:00 1357K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
15 #4 00:00 1401K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
16 #4 00:00 1463K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
17 #4 00:00 1561K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
18 #4 00:00 1615K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
19 #4 00:00 1667K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
20 #4 00:00 1695K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
21 #4 00:00 1736K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
22 #4 00:00 1789K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
23 #4 00:00 1827K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
24 #4 00:00 1870K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
25 #4 00:00 1912K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
26 #4 00:00 1950K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
27 #4 00:00 1990K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
28 #4 00:00 2035K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
29 #4 00:00 2072K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
30 #4 00:00 2124K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
31 #4 00:00 2156K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
32 #4 00:00 2346K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
33 #4 00:00 2372K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
34 #4 00:00 2409K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
35 #4 00:00 2433K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
36 #4 00:00 2516K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
37 #4 00:00 2555K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
38 #4 00:00 2656K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
39 #4 00:00 2691K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
40 #4 00:00 2846K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
41 #4 00:00 2888K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
42 #4 00:00 3131K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
43 #4 00:00 3173K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
44 #4 00:00 3437K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
45 #4 00:00 3486K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
46 #4 00:00 3920K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
47 #4 00:00 3965K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
48 #4 00:00 4454K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
49 #4 00:00 4512K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
50 #4 00:00 7688K Kf7 b3 Ke7 b2 Kd8 b1=Q Bxc7+
Nodes: 7720328
Nodes/second: 9519528
Best move: Kf7Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
MikeB
Posts: 4889Joined: Thu Mar 09, 2006 6:34 amLocation: Pen Argyl, Pennsylvania
Post by MikeB Wed Aug 21, 2019 3:22 am
[d]rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1
The related mate -in 5 position with current near release Honey X5i
23 threads , 7 man syzygy 4096M hash
Code: Select all
33 #5 75.3M 0:03.51 Bd7 b4 Kf7 b3 Ke8 b2 Kd8 b1=Q Bxc7#
32 #5! 75.2M 0:03.51 Bd7!
31 0.00 61.2M 0:02.86 Bd5 Kc8 Bxa8 Rc4 Bxg7 Ra4 Bb7+ Kc7 Bxh6 b4 Bg7 b3 Kf5 Kd6 Bf8+ Kd7 Bg7 b2 Bxb2 Ra5+ Kf6 Rb5 Ba1 Rxb7
30 0.00 44.6M 0:02.10 Bd5 Kc8 Bxa8 Rc4 Bxg7 Ra4 Bb7+ Kc7 Bxh6 b4 Bg7 b3 Kf5 Kd6 Bf8+ Kd7 Bg7
29 0.00 38.9M 0:01.83 Bd5 Kc8 Bxa8 Rc4 Bxg7 Rg4+ Kxh6 Kd7 Bf3 Ra4 Bb7 b4 Kg5 b3 Kf5 Kd6 Bf8+ Kc7 Bg7
28 0.00 31.9M 0:01.52 Bd5 Kc8 Bxa8 Rc4 Bxg7 Rg4+ Kxh6 Kd7 Bf3 Ra4 Bb7 b4 Kg5 b3 Kf5 Kd6 Bf8+ Kc7 Bg7 Kd6
27 0.00 21.3M 0:01.03 Bd5 Kc8 Bxa8 Rc4 Bxg7 Rg4+ Kxh6 Kd7 Bf3 Ra4 Bb7 b4 Kg5 b3 Kf5 Kd6 Bf8+ Kd7
26 0.00 18.8M 0:00.92 Bd5 Kc8 Bxa8 Rc4 Bxg7 Rg4+ Kxh6 Kd7 Bf3 Ra4 Bb7 b4 Kg5 b3 Kf5 Kd6 Bf8+ Kc7 Bg7 Kd6
25 0.00 18.1M 0:00.88 Bd5 Kc8 Bxa8 Rc4 Bxg7 Ra4 Bb7+ Kd7 Kxh6 b4 Kg5 b3 Kf5 Kd6 Bf8+ Kd7
24 0.00 14.1M 0:00.68 Bd5 Kc8 Bxa8 Rc4 Bxg7 Ra4 Bb7+ Kd7 Kxh6 b4 Kg5 b3 Kf5 Ra5+ Ke4 Rb5 Bb2 Kc7 Kd3 Rxb7 Be5+ Kb6 axb7
23 0.00 13.5M 0:00.66 Bd5 Kc8 Bxa8 Rc4 Bxg7 b4 Kxh6 Kc7 Kg5 Kb6 Bb7 b3 Kf5 Kc5 Be4 Ra4 Bd3 Kd5 Kg5 Kc6 Bc3 Kb6 Kf5 Rxa6 Bd4+ Kb7 Ke5 Rb6 Bxb6
22 0.00 12.7M 0:00.62 Bd5 Kc8 Bxa8 Rc4 Bxg7 Ra4 Bb7+ Kc7 Bxh6 b4 Kf5 b3 Bg7 Kd6 Bf8+ Kc7
21 0.00 9.31M 0:00.47 Bd5 Kc8 Bxa8 Rc4 Bxg7 b4 Kxh6 b3 Kg5 Kc7 Kf5 Kd6 Bf8+ Kc7
20 -0.09 8.56M 0:00.44 Bd5 Kc8 Bxa8 Rc4 Bxg7 Kd7 Kxh6 Kd6 Kg5 Rc8 Bf3 Kc5 Kf4 Re8 Be5 b4 Bd1 Kb6 Bd4+ Kxa6 Bc5 Rd8 Bb3 Kb7 Ke4 a5 Bd4 Kc7
19 -0.09 7.47M 0:00.39 Bd5 Kc8 Bxa8 Rc4 Bxg7 Rg4+ Kxh6 Kc7 Bf3 Ra4 Kg5 Rxa6 Kf5 b4 Be5+ Kd7 Be2 Ra5 Bd3 Kc6 Be4+ Kb5 Bd3+ Kc5 Ke4
18 -0.09 5.46M 0:00.29 Bd5 Kc8 Bxa8 Rc4 Bxg7 Ra4 Kxh6 Rxa6+ Kg5 b4 Kf5 Rd6 Ke4 a5 Bd5 a4 Be5 Rd8 Bf6 Rf8 Bd4 b3 Ke3 Kc7 Kd3
17 0.00 321891 0:00.04 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
16 0.00 302958 0:00.04 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
15 0.00 292794 0:00.04 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
14 0.00 132328 0:00.03 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
13 0.00 127842 0:00.03 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
12 0.00 123079 0:00.03 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
11 0.00 29479 0:00.01 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
10 0.00 24254 0:00.01 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
9 0.00 16433 0:00.01 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5 Kxh5 b2 Bxb2
8 0.00 14900 0:00.01 Bd5 b4 Bxa8 Kxa8 Bxc7 b3 Be5 h5
7 +0.09 7319 0:00.00 Bd5 b4 Bxc7+ Kxc7 Bxa8 b3 Be4
6 -0.09 5507 0:00.00 Bd5 b4 Bxa8 Kxa8 Bxc7 b3
5 -0.09 3679 0:00.00 Bd5 b4 Bxa8 Kxa8 Bxc7
4 -0.09 3048 0:00.00 Bd5 b4 Bxa8 Kxa8
3 -0.09 2038 0:00.00 Bd5 b4 Bxa8
2 -0.09 1027 0:00.00 Bd5 b4
1 -2.10 840 0:00.00 Bd5
0 #
without 7 man syzygy , it takes over two mimutes
Code: Select all
info depth 48 seldepth 69 multipv 1 score cp 4753 lowerbound nodes 2638096754 nps 29003141 hashfull 935 tbhits 0 time 90959 pv e6d5
info depth 48 seldepth 142 multipv 1 score mate 5 lowerbound nodes 3551333282 nps 28703673 hashfull 969 tbhits 0 time 123724 pv e6d7
info depth 48 seldepth 142 multipv 1 score mate 5 nodes 3551334998 nps 28703687 hashfull 969 tbhits 0 time 123724 pv e6d7 b5b4 g6f7 b4b3 f7e7 b3b2 e7d8 b2b1q e5c7
one thread with 16M hash takes a very long time. did not let it finish...
one thread with 2048 hash and 7 man syzygy - 7 man syzygy is key for SF/Honey solving this:
Code: Select all
/Users/michaelbyrne/cluster.mfb/Honey-X5i ; exit;
Honey X5i by M. Byrne and scores of others...
set syzygypath :/Volumes/OWC960/syzygy:/Volumes/OWC960/syz7:/Volumes/S1/Z1/z:/Volumes/S2/Z2/z:/Volumes/S3/Z3/z
info string Found 1511 tablebases
Confirmation: syzygypath set to /Volumes/OWC960/syzygy:/Volumes/OWC960/syz7:/Volumes/S1/Z1/z:/Volumes/S2/Z2/z:/Volumes/S3/Z3/z
s hash 2048
Confirmation: hash set to 2048
p f rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1
g i
..
info depth 46 seldepth 29 multipv 1 score cp 5000 nodes 287983716 nps 1518853 hashfull 570 tbhits 10787009 time 189606 pv e6d5 b8c8 d5a8 c7c4 e5g7 c4a4 a8b7 c8c7 g6h6 b5b4 h6g5 b4b3 g5f5 c7d6 b7c8 d6c5 g7f6 a4a2 f5e4 c5b4 f6d4 a2e2 e4d3 e2c2 c8e6 c2c6 e6b3 b4b3
info depth 47 currmove e6d5 currmovenumber 1
info depth 47 currmove e5g7 currmovenumber 2
info depth 47 currmove e5c7 currmovenumber 3
info depth 47 currmove e5d4 currmovenumber 4
info depth 47 currmove e6a2 currmovenumber 5
info depth 47 currmove e5f4 currmovenumber 6
info depth 47 currmove e5b2 currmovenumber 7
info depth 47 currmove e6d7 currmovenumber 8
info depth 47 seldepth 27 multipv 1 score mate 6 lowerbound nodes 337725827 nps 1540677 hashfull 628 tbhits 12652393 time 219206 pv e6d7
info depth 46 currmove e6d7 currmovenumber 1
info depth 46 currmove e5c7 currmovenumber 2
info depth 46 currmove e5g7 currmovenumber 3
info depth 46 currmove e6d5 currmovenumber 4
info depth 46 currmove e5b2 currmovenumber 5
info depth 46 currmove e5g3 currmovenumber 6
info depth 46 currmove e5f4 currmovenumber 7
info depth 46 currmove g6h7 currmovenumber 8
info depth 46 currmove e5f6 currmovenumber 9
info depth 46 currmove e5d4 currmovenumber 10
info depth 46 currmove e6f5 currmovenumber 11
info depth 46 currmove e5d6 currmovenumber 12
info depth 46 currmove e5c3 currmovenumber 13
info depth 46 currmove e6f7 currmovenumber 14
info depth 46 currmove g6h5 currmovenumber 15
info depth 46 currmove e6c4 currmovenumber 16
info depth 46 currmove e6h3 currmovenumber 17
info depth 46 currmove e6c8 currmovenumber 18
info depth 46 currmove e5a1 currmovenumber 19
info depth 46 currmove e6a2 currmovenumber 20
info depth 46 currmove g6f5 currmovenumber 21
info depth 46 currmove e5h2 currmovenumber 22
info depth 46 currmove e6b3 currmovenumber 23
info depth 46 currmove e6g4 currmovenumber 24
info depth 46 currmove e6g8 currmovenumber 25
info depth 47 seldepth 27 multipv 1 score mate 5 nodes 337758791 nps 1540743 hashfull 628 tbhits 12652447 time 219218 pv e6d7 b5b4 g6f7 b4b3 f7e8 b3b2 e8d8 b2b1q e5c7
