Shirov's Bh3, Houdini solves it

[yanquis1972]

Bh3 is indeed the best move, and very elegant apart from that, but the problem is how to make engines choose it, when they see very large advantage in simpler lines too? why sac when other simpler lines give big advantage too? as a programmer, what would you do to resolve that?

main answer: no idea, i'm no programmer

but for one thing, in this position (& many endgame positions) the big advantage is simply not there. the correct eval (lets go w/ the conventional wisdom that this position is drawn without Bh3) would be either 0.00, or some chances for black -- certainly not outright winning.

but even with quite a bit of that eval shaved off (reduce draw distance), contemporary top engines still have trouble finding Bh3.

so i think youre right in diagnosing the root issue, but its been an eternal one & no fix found yet. similarly, i've little doubt that the aggressive pruning that misses these elegant solutions leads to better performance overall. i have no idea what the answer is, just revived the thread as i personally find it quite frustrating that after several years & hundreds of elo gained, engines haven't made progress in finding the spectacular move -- aside from my insignificant frustration as an end user, who knows what gems we've been robbed of in TCEC as a result of this behavior, for example?

[Lyudmil Tsvetkov]

Dead draw, Lyudmil.

BTW, don't you think that to be a fittle funny too:

...do not look at what engines suggest...
...I ran a 10 games shootout with Komodo 10.1...
...games were at 1 min. bullet...

I do not see what is so funny; you migth play 100 instead of 10 games, and black will still score around 30% wins or so. That is how engines are tuned, using stats of winning probabilities.

objectively migth be drawn (which I am still not certain), but black has nice winning chances after Kf5, capturing the h pawn and going to the first rank on f1.

problem however is not if this is a draw or win, but, as John wanted to know, why top engines are unable to find the key move. I myself do not see how an accurate eval assessment of this position could be returned without specifying some 500 lines of code, because:

- most eg positions with 2 passers and 3 files apart migth be drawn, but with c & f files wins
- positions with pawn more than 3 files apart might be wins, but with edge a or h pawns and wrong bishop draws; still, even some of those are wins
- many things will also depend on the placement of remaining pawns, some positions are draws, while others wins

so, if engines give +200cps for most of those, how do you make the distinction?

[Jouni]

SF Matefinder solved this fast in 3/4 tries:

Analysis by Stockfish MateFinder 64:
(SNIP)
1...Be4 2.Bb2 f5 3.g3 Kd6 4.Kf2 Kc6 5.Ke2 Kc5 6.Kd2 Kb4 7.Bc3+ Kb3 8.Bf6 a3 9.Bd4 Kc4 10.Ke3 Bg2 11.Bg7 a2 12.Bd4 Bh3 13.Be5 Bg4 14.Bb2 Bd1 15.Be5 Bc2 16.Bb2 Bd3 17.Be5 Bf1
-+ (-1.81) Depth: 30/44 00:00:03 27162kN, tb=420848
1...Bh3
-+ (-1.88 ++) Depth: 31/44 00:00:03 31113kN, tb=485632
1...Bh3
-+ (-1.95 ++) Depth: 31/44 00:00:03 33987kN, tb=511253
1...Bh3
-+ (-2.06 ++) Depth: 31/44 00:00:04 37075kN, tb=530407
1...Bh3
-+ (-2.21 ++) Depth: 31/44 00:00:04 40021kN, tb=551174
1...Bh3 2.Kf2 Kf5 3.g3 Ke4 4.Ke2 a3 5.Bb4 a2 6.Bc3 d4 7.Bb2 Be6 8.Kd2 Bg4 9.Ba1 Bf3 10.Bb2 Bg2 11.Ba1 Bh3 12.Ke2 Kd5 13.Kd1 Bf5 14.Kc1 Be6 15.Kc2 Kc4 16.Kb2 Kd3 17.g4
-+ (-2.19) Depth: 31/44 00:00:05 48959kN, tb=645507
(SNIP)
1...Bh3 2.Kf2 Kf5 3.Ke3 Bxg2 4.Kd2 Be4 5.Bb2 Ke6 6.Ba3 f5 7.Ke3 Ke5 8.Bb2+ Kd6 9.Ba3+ Kc6 10.Kf4 Kb5 11.Bb2 Kc4 12.Ke5 Kb3 13.Ba1 a3 14.Kf4 Kb4 15.Bf6 Kc4 16.Ke3 a2 17.Ba1 d4+ 18.Bxd4 f4+ 19.Kxe4 f3 20.Bf2 a1Q 21.Kxf3 Qd1+ 22.Ke3 Qd3+ 23.Kf4 Qh3 24.Ke4 Qg2+ 25.Ke3 Qg4 26.Be1 Qd4+ 27.Kf3 Qd1+ 28.Kf2
-+ (-10.71) Depth: 38/64 00:03:39 2331mN, tb=29601692

[MikeB]

Topalov - Shirov, Linares 1998 (r10)
[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47
Current Let's Check status:

Going by the depth-to-points ratio the first entry appears to be Tactical Mode, the third NMP OFF.
Today's SF stubbornly sticks to 47...a3:

Code: Select all

Analysis by Stockfish 031216 x64 POPCNT:

47...a3 48.Kf2 Bc2 49.Ke1 Be4 50.g3 Kf5 51.Kf2 a2 52.Ke3 Kg4 53.Bxf6 Kxg3 54.Ke2 Bg2 55.Ke3 Kg4 56.Kf2 Bf3 57.Ke3 Be4 58.Kd2 Bb1 59.Ke3 Kg3 60.Kd2 Kf4 61.Bd4 Kf5 62.Bg7 Be4 63.Bc3 Kf4 64.Bb2 Kg3 65.Bf6 Kg2 66.Ke3 Kh3 67.Ke2 Bb1 68.Ke3 Kg4 69.Kd2 Be4 70.Ke2 Kf4 71.Kd2 Kf3 72.Bb2 Kf2 73.Be5 Bb1 74.Bf6 Kg2 75.Ke3 Bf5 76.Kd2 Kf3 77.Be5 Ke4 78.Bb2 Bg4 79.Bc3 Bf3 80.Bb2 Bg2 81.Ke2 Kf5 
  -+ (-2.71)  Depth: 67/69   00:03:05  4192MN, tb=29611011

Perhaps it will change its mind later ...

not yet released Macfish 8.2 sse

Code: Select all

single core - 512 hash
info depth 35 seldepth 45 multipv 1 score cp 185 nodes 20444471 nps 2341863 hashfull 155 tbhits 0 time 8730 pv f5e4 g2g3 f6f5 g1f2 e6d6 c3b4 d6c6 b4e7 c6b5 f2e2 b5c4 e2d1 c4b3 e7f6 a4a3 d1d2 b3c4 d2e3 e4g2 f6d4 g2f3 d4g7 f3d1 g7d4 d1c2 d4f6 c4b3 e3d2 c2e4 d2c1 b3c4 f6e7 a3a2 c1b2 d5d4 e7g5 c4d3 b2a2 d3c2
 info depth 36 seldepth 45 multipv 1 score cp 192 nodes 45494148 nps 2413354 hashfull 366 tbhits 0 time 18851 pv f5h3
 info depth 36 seldepth 45 multipv 1 score cp 200 nodes 50553768 nps 2436326 hashfull 400 tbhits 0 time 20750 pv f5h3
 info depth 36 seldepth 47 multipv 1 score cp 210 nodes 54246407 nps 2450043 hashfull 423 tbhits 0 time 22141 pv f5h3
 info depth 36 seldepth 47 multipv 1 score cp 226 nodes 63216302 nps 2470158 hashfull 476 tbhits 0 time 25592 pv f5h3
 info depth 36 seldepth 47 multipv 1 score cp 247 nodes 74734595 nps 2476295 hashfull 545 tbhits 0 time 30180 pv f5h3
 info depth 36 seldepth 51 multipv 1 score cp 275 nodes 89339115 nps 2479919 hashfull 618 tbhits 0 time 36025 pv f5h3
 info depth 36 seldepth 51 multipv 1 score cp 252 nodes 100728124 nps 2488097 hashfull 670 tbhits 0 time 40484 pv f5h3 g1f2
 info depth 36 seldepth 51 multipv 1 score cp 282 nodes 105038011 nps 2488109 hashfull 683 tbhits 0 time 42216 pv f5h3
 info depth 36 seldepth 55 multipv 1 score cp 345 nodes 128450460 nps 2490025 hashfull 770 tbhits 0 time 51586 pv f5h3
 info depth 36 seldepth 55 multipv 1 score cp 425 nodes 157767883 nps 2492344 hashfull 839 tbhits 0 time 63301 pv f5h3
 info depth 36 seldepth 56 multipv 1 score cp 353 nodes 180303779 nps 2497801 hashfull 875 tbhits 0 time 72185 pv f5h3 g1f2
 info depth 36 seldepth 56 multipv 1 score cp 443 nodes 186843932 nps 2498848 hashfull 891 tbhits 0 time 74772 pv f5h3
 info depth 36 seldepth 56 multipv 1 score cp 527 nodes 207910315 nps 2508570 hashfull 903 tbhits 0 time 82880 pv f5h3 g1f2 e6f5 f2e3 h3g2 c3b2 f5e6 e3d4 g2e4 d4c3 f6f5 b2a3 e6e5 a3c5 e4g2 c3d3 f5f4 c5d4 e5f5 d4c5 f5g4 d3c2 g2e4 c2d1 g4h4 d1e1 g6g5 c5e7 d5d4 e7c5 d4d3 c5f2 h4g4 e1d2 a4a3 f2d4 g4g3 d4e5 a3a2 d2e1 g3g4 e1d2 g4h4 e5a1 h4g4 a1c3 g4g3
 info depth 37 seldepth 58 multipv 1 score cp 453 nodes 219598084 nps 2513714 hashfull 920 tbhits 0 time 87360 pv f5h3 g1h2
 info depth 37 seldepth 58 multipv 1 score cp 527 nodes 221997185 nps 2512445 hashfull 922 tbhits 0 time 88359 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 537 nodes 231896456 nps 2520038 hashfull 925 tbhits 0 time 92021 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 553 nodes 243721708 nps 2531121 hashfull 929 tbhits 0 time 96290 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 533 nodes 251182913 nps 2539766 hashfull 933 tbhits 0 time 98900 pv f5h3 g1f2
 info depth 37 seldepth 58 multipv 1 score cp 554 nodes 254117386 nps 2542267 hashfull 934 tbhits 0 time 99957 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 591 nodes 268694380 nps 2549234 hashfull 941 tbhits 0 time 105402 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 560 nodes 280547275 nps 2547928 hashfull 952 tbhits 0 time 110108 pv f5h3 g1f2
 info depth 37 seldepth 58 multipv 1 score cp 600 nodes 287505540 nps 2554968 hashfull 955 tbhits 0 time 112528 pv f5h3
 info depth 37 seldepth 60 multipv 1 score cp 548 nodes 288848689 nps 2553990 hashfull 955 tbhits 0 time 113097 pv f5h3 g1f2
 info depth 37 seldepth 60 multipv 1 score cp 447 nodes 288983639 nps 2553987 hashfull 955 tbhits 0 time 113150 pv f5h3 g1f2
 info depth 37 seldepth 60 multipv 1 score cp 530 nodes 291025982 nps 2553285 hashfull 957 tbhits 0 time 113981 pv f5h3
 info depth 37 seldepth 72 multipv 1 score cp 653 nodes 322293604 nps 2561178 hashfull 969 tbhits 0 time 125838 pv f5h3 g1f2 e6f5 f2e3 h3g2 c3b2 f5e6 e3d4 g2e4 h4h5 g6h5 d4e3 f6f5 e3f4 d5d4 b2d4 a4a3 d4h8 e6d5 h8f6 a3a2 f4g3 h5h4 g3h3 e4g2 h3h4 d5c4 h4g3 g2e4 g3f2 c4d3 f6e5 d3c2 f2e1 c2b1 e1d2 a2a1q e5a1 b1a1 d2e3 a1a2 e3d2 a2b3 d2e2 b3b2 e2e3 b2c2 e3d4 c2d2

Code: Select all

12 Cores with 18 threads with 512 Hash
 info depth 27 seldepth 43 multipv 1 score cp 176 nodes 31495036 nps 31589805 tbhits 0 time 997 pv f5e4 g1f2 f6f5 g2g3 e6d6 c3b4 d6e5 f2e3 d5d4 e3d2 e5d5 d2c1 d5c4 b4a3 d4d3 a3b2 c4b3 b2g7 a4a3 g7e5 b3b4 e5d6 b4c3 d6e5 c3b3 e5d6 e4g2 d6e5 b3a2 e5d4 g2d5 d4f6
 info depth 28 seldepth 43 multipv 1 score cp 303 nodes 113089380 nps 33527832 hashfull 569 tbhits 0 time 3373 pv f5h3
 info depth 28 seldepth 43 multipv 1 score cp 337 nodes 132695048 nps 33619216 hashfull 638 tbhits 0 time 3947 pv f5h3 g1f2 e6f5 f2e3 h3g2 c3b2 g2e4 e3f2 f5e6 f2e3 f6f5 e3f4 e6d6 b2d4 d6c6 d4a1 c6c5 f4e5 a4a3 a1c3 c5c4 c3a1 c4b3 a1d4 a3a2 e5f4 b3c4 d4a1 d5d4 f4g3 c4c5 a1b2 d4d3 g3f2
 info depth 29 seldepth 43 multipv 1 score cp 345 nodes 133842319 nps 33620276 hashfull 640 tbhits 0 time 3981 pv f5h3
 info depth 29 seldepth 43 multipv 1 score cp 352 nodes 137665359 nps 33634341 hashfull 650 tbhits 0 time 4093 pv f5h3
 info depth 29 seldepth 43 multipv 1 score cp 363 nodes 140709946 nps 33678780 hashfull 654 tbhits 0 time 4178 pv f5h3
 info depth 29 seldepth 43 multipv 1 score cp 369 nodes 147424585 nps 33781985 hashfull 674 tbhits 0 time 4364 pv f5h3 g1f2 e6f5 g2g3 f5e4 f2e2 a4a3 c3b4 a3a2 b4c3 h3e6 c3a1 d5d4 a1b2 f6f5 e2d2 e4f3 b2d4 f3g3 d2e2 f5f4 e2f1 g3h4 f1f2 h4g4 f2e2 g6g5 e2d2 g4f5 d4b2 g5g4 d2e2 f5e4
 info depth 30 seldepth 44 multipv 1 score cp 377 nodes 152181063 nps 33833050 hashfull 688 tbhits 0 time 4498 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 384 nodes 157606030 nps 33842823 hashfull 696 tbhits 0 time 4657 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 395 nodes 162754193 nps 33907123 hashfull 707 tbhits 0 time 4800 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 410 nodes 164669706 nps 33917550 hashfull 712 tbhits 0 time 4855 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 431 nodes 197700254 nps 34305093 hashfull 771 tbhits 0 time 5763 pv f5h3
 info depth 30 seldepth 47 multipv 1 score cp 459 nodes 203844969 nps 34375205 hashfull 782 tbhits 0 time 5930 pv f5h3
 info depth 30 seldepth 47 multipv 1 score cp 496 nodes 228068742 nps 34576825 hashfull 811 tbhits 0 time 6596 pv f5h3
 info depth 30 seldepth 47 multipv 1 score cp 513 nodes 249604926 nps 34934209 hashfull 828 tbhits 0 time 7145 pv f5h3 g1f2 e6f5 f2e3 h3g2 e3d3 a4a3 d3c2 f5e4 c3f6 d5d4 f6g5 e4f3 c2b3 f3e2 b3a3 d4d3 a3b2 d3d2 g5d2 e2d2 b2a1 d2d3 a1b1 g2e4 b1c1 d3e2 c1b2 e2d2 b2a2 d2d3 a2b2 d3e3 b2c1 e3f3 c1d1 f3g3 d1d2 g3g4
 info depth 31 seldepth 47 multipv 1 score cp 520 nodes 251603052 nps 34935164 hashfull 831 tbhits 0 time 7202 pv f5h3
 info depth 31 seldepth 47 multipv 1 score cp 493 nodes 253966839 nps 34943153 hashfull 833 tbhits 0 time 7268 pv f5h3 g1f2
 info depth 31 seldepth 48 multipv 1 score cp 520 nodes 255441742 nps 34944150 hashfull 833 tbhits 0 time 7310 pv f5h3
 info depth 31 seldepth 51 multipv 1 score cp 535 nodes 275151009 nps 35208062 hashfull 844 tbhits 0 time 7815 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 556 nodes 298653574 nps 35494838 hashfull 865 tbhits 0 time 8414 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 585 nodes 319169145 nps 35629509 hashfull 879 tbhits 0 time 8958 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 557 nodes 348623758 nps 35815056 hashfull 897 tbhits 0 time 9734 pv f5h3 c3b2
 info depth 31 seldepth 52 multipv 1 score cp 591 nodes 350681627 nps 35805761 hashfull 901 tbhits 0 time 9794 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 643 nodes 398637845 nps 36033430 hashfull 920 tbhits 0 time 11063 pv f5h3 c3b2 e6f5 g1f1 f5e4 f1e2 h3g2 b2f6 a4a3 f6c3 d5d4 c3a1 g2f3 e2d2 f3g4 d2c2 e4e3 c2b3 d4d3 a1f6 g4h3 f6g5 e3e2 b3a3 h3g2 a3b4 d3d2 g5d2 e2d2 b4c5 d2e3 c5d6 g2e4 d6e5 e3f3 e5f6 f3g4 f6f7 g4h4 f7g7 g6g5 g7f6 g5g4 f6f7 g4g3
 info depth 32 seldepth 52 multipv 1 score cp 627 nodes 400082715 nps 36030503 hashfull 921 tbhits 0 time 11104 pv f5h3 g2g4
 info depth 32 seldepth 52 multipv 1 score cp 643 nodes 402463067 nps 36037165 hashfull 921 tbhits 0 time 11168 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 654 nodes 412607648 nps 36076562 hashfull 925 tbhits 0 time 11437 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 669 nodes 426259073 nps 36099176 hashfull 931 tbhits 0 time 11808 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 690 nodes 477992743 nps 36385228 hashfull 944 tbhits 0 time 13137 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 718 nodes 507930056 nps 36536473 hashfull 951 tbhits 0 time 13902 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 755 nodes 603828358 nps 36591222 hashfull 973 tbhits 0 time 16502 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 804 nodes 745067363 nps 37040385 hashfull 987 tbhits 0 time 20115 pv f5h3
 info depth 32 seldepth 54 multipv 1 score cp 866 nodes 970676625 nps 37202078 hashfull 998 tbhits 0 time 26092 pv f5h3
 info depth 32 seldepth 56 multipv 1 score cp 857 nodes 974373677 nps 37195513 hashfull 998 tbhits 0 time 26196 pv f5h3 g2g4 h3g4 g1f2 e6f5 f2e3 a4a3 c3a1 g4h3 e3d4 h3g2 d4d3 a3a2 a1b2 g2e4 d3e3 f5e6 e3f4 f6f5 f4e3 e6d6 e3f4 d6c5 b2a1 c5c6 f4e5 c6b5 h4h5 g6h5 e5f4 b5c4 f4e3 c4c5 e3d2 c5b5 d2c1 b5c4 c1b2 d5d4 b2a2 f5f4 a2b2 f4f3

[Uri Blass]

Dead draw, Lyudmil.

BTW, don't you think that to be a fittle funny too:

...do not look at what engines suggest...
...I ran a 10 games shootout with Komodo 10.1...
...games were at 1 min. bullet...

I do not see what is so funny; you migth play 100 instead of 10 games, and black will still score around 30% wins or so. That is how engines are tuned, using stats of winning probabilities.

objectively migth be drawn (which I am still not certain), but black has nice winning chances after Kf5, capturing the h pawn and going to the first rank on f1.

problem however is not if this is a draw or win, but, as John wanted to know, why top engines are unable to find the key move. I myself do not see how an accurate eval assessment of this position could be returned without specifying some 500 lines of code, because:

- most eg positions with 2 passers and 3 files apart migth be drawn, but with c & f files wins
- positions with pawn more than 3 files apart might be wins, but with edge a or h pawns and wrong bishop draws; still, even some of those are wins
- many things will also depend on the placement of remaining pawns, some positions are draws, while others wins

so, if engines give +200cps for most of those, how do you make the distinction?

The problem is not that the engine has an evaluation that is not accurate.

It is ok not to know if the position is a win for black and to think 30% win for black and 70% draw but in this case I could expect an evaluation of something like +0.6 for black.

The main problem is that the engine claim that it is almost sure black is winning based on the evaluation when it suggest a drawing move.

I think that it is bad that people use tablebases because tablebases hide the bugs of chess engines so sometimes people even do not see how wrong they can be.

Latest version of stockfish from 12.12(without tablebases) show the following analysis and I wonder what cause it to fail high again and again on a3 and when it is going to be stopped(6.54 pawns at depth 64 after more than an hour but I do not believe that a3 is winning):

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47

Stockfish_16121212_x64_modern:
1/1 00:00 35 35k +1.79 47. ... a3
2/2 00:00 102 102k +2.17 47. ... a3 48.g3
3/3 00:00 177 177k +2.52 47. ... a3 48.Ba1 a2
4/4 00:00 262 262k +2.52 47. ... a3 48.Ba1 a2 49.g3
5/6 00:00 2k 788k +1.78 47. ... a3 48.Kf2 Be4 49.Bd4 a2
6/6 00:00 4k 1,343k +1.73 47. ... a3 48.g3 a2 49.Kf2 Bd3 50.Kf3 Be4+ 51.Ke2
7/7 00:00 5k 1,606k +1.70 47. ... a3 48.g3 a2 49.Kf2 Be4 50.Bd4 f5
8/8 00:00 8k 2,013k +1.64 47. ... a3 48.g3 Bc2 49.Kf2 a2 50.Bd4 f5 51.Ke3
9/11 00:00 25k 2,779k +1.48 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 a2 51.Bd4 Bb3 52.Kd3
10/12 00:00 34k 2,801k +1.45 47. ... a3 48.Kf2 Be4 49.g3 Bc2 50.Ke3 Bf5 51.Kd4 Bc2 52.Kc5 a2
11/15 00:00 64k 2,922k +1.47 47. ... a3 48.Kf2 Be4 49.g3 Kf5 50.Ba1 Bc2 51.Ke3 Bb3 52.Bd4 Bc4 53.Kd2 a2
12/16 00:00 101k 2,980k +1.42 47. ... a3 48.Kf2 Bc2 49.Ke2 Kf5 50.Kd2 Bb1 51.g3 Kg4 52.Bxf6 Kxg3 53.Kc1 Be4
13/16 00:00 120k 3,073k +1.41 47. ... a3 48.Kf2 Bd3 49.g3 Kf5 50.Ke3 Bb1 51.Ke2 Kg4 52.Bxf6 Kxg3 53.Kd2 Kf4 54.Kc1
14/16 00:00 122k 3,049k +1.41 47. ... a3 48.Kf2 Bc2 49.g3 Kf5 50.Ke3 Bb1 51.Ke2 Kg4 52.Bxf6 Kxg3 53.Kd2 Kf4 54.Kc1
15/23 00:00 228k 3,504k +1.41 47. ... a3 48.Kf2 Be4 49.g3 f5 50.Ke3 a2 51.Kd4 Kd6 52.Bb2 Bf3 53.Kc3 Be2 54.Kb3 Bc4+ 55.Kc2
16/23 00:00 250k 3,577k +1.43 47. ... a3 48.Kf2 Be4 49.g3 f5 50.Ke3 Kd7 51.Kd2 Kc6 52.Bf6 Kb5 53.Kc3 Ka4 54.Bg7 Bh1 55.Kc2 Bg2 56.Bd4 Kb4
17/24 00:00 619k 3,558k +1.68 47. ... Be4 48.g4 a3 49.h5 gxh5 50.gxh5 f5 51.Kf2 f4 52.Bd4 a2 53.Ke1 Kd6 54.Kd1 f3 55.Ke1 Kc6 56.h6 Kb5
18/24 00:00 669k 3,503k +1.69 47. ... Be4 48.g4 a3 49.Kf2 f5 50.gxf5+ Kxf5 51.Ke3 Kg4 52.Bf6 a2 53.Kd2 Bb1 54.Bc3 Kxh4 55.Kc1 g5 56.Bf6 Kh3 57.Be5 g4
19/29 00:00 919k 3,283k +1.80 47. ... Be4 48.g4 a3 49.Kf2 f5 50.gxf5+ Kxf5 51.Ke3 a2 52.Bd4 Kg4 53.Kd2 Kxh4 54.Kc1 g5 55.Kb2 g4 56.Kxa2 g3 57.Kb3 g2 58.Kb4 Kg4
20/31 00:00 1,356k 3,095k +2.04 47. ... Be4 48.g4 a3 49.h5 gxh5 50.gxh5 f5 51.Kf2 f4 52.Ke2 Kf5 53.h6 Kg5 54.Bg7 a2 55.Kf2 Kg4 56.Ke2 Bg6 57.Bd4 Kf5 58.Kf3 Kg5 59.h7 Be4+ 60.Ke2 Bxh7
21/33 00:00 2,072k 3,465k +2.14 47. ... Be4 48.g4 a3 49.h5 gxh5 50.gxh5 f5 51.Kf2 f4 52.h6 a2 53.Ke2 Bg6 54.Kf3 Kf5 55.Bd4 Kg5 56.Bg7 Be4+ 57.Ke2 Kh5 58.Kf2 Kg4 59.Bd4 Bg6 60.Bg7 f3 61.Ke3 Kg3 62.Be5+ Kg2
22/34 00:00 2,532k 3,617k +2.07 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Ba1 a2 56.Bf6 Bf5 57.Bd4 Bh3 58.Bf6 Bd7 59.Ba1
23/34 00:00 3,076k 3,715k +2.00 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Bf6 a2 56.Ba1 Bf5 57.Bd4 Kb3 58.Kd2 Bd7 59.Ba1 Kc4 60.Ke3 Bg4 61.Bf6
24/34 00:00 3,609k 3,815k +1.93 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 a2 56.Bf6 Bf5 57.Bd4 Bd7 58.Ba1 Bh3 59.Bf6 Bg2 60.Bd4 Bh3 61.Ba1 Bc8
25/34 00:01 3,862k 3,847k +1.93 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 a2 56.Bf6 Bf5 57.Bd4 Bd7 58.Ba1 Bh3 59.Bf6 Kb4 60.Kd2 Be6 61.Kc1 Kb3 62.Ba1
26/35 00:01 4,237k 3,894k +2.00 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bd4 Kb3 57.Kd2 Bf3 58.Ke3 Be4 59.Kd2 Kc4 60.Ke3 a2 61.Bf6 Bf5 62.Bd4 Bd7 63.Bf6
27/35 00:01 5,252k 3,817k +1.92 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 a2 56.Bf6 Bf5 57.Bd4 Bh3 58.Bf6 Kc5 59.Bc3 Be6 60.Bd4+ Kc4 61.Bf6 Kb4 62.Ba1
28/35 00:01 5,968k 3,765k +1.91 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bf6 Kb4 57.Bd4 Kb3 58.Kd2 Bf3 59.Ke3 Be4 60.Kd2 Kc4 61.Ke3 Kb4 62.Be5 a2 63.Kd2 Kc4 64.Kc1 d4
29/35 00:01 6,922k 3,793k +1.91 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bf6 a2 57.Bd4 Be4 58.Be5 Bb1 59.Bf6 Bf5 60.Be5 Bd7 61.Bf6 Be6 62.Be5 Bg4 63.Bf6 Bh3 64.Ba1 Kb3
30/35 00:02 7,987k 3,853k +1.91 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bf6 a2 57.Bd4 Be4 58.Be5 Bb1 59.Bf6 Bf5 60.Be5 Bd7 61.Bf6 Be6 62.Be5 Bg4 63.Bf6 Bh3 64.Ba1 Kb3
31/37 00:02 9,220k 3,802k +1.91 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bf6 a2 57.Bd4 Be4 58.Be5 Bb1 59.Bf6 Bf5 60.Be5 Bd7 61.Bf6 Be6 62.Be5 Bg4 63.Bf6 Kc5 64.Bd4+ Kb4 65.Ba1 Kc4
32/40 00:02 9,938k 3,793k +1.91 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bf6 Bh3 57.Bd4 Kb3 58.Kd2 Bg4 59.Bf6 Kc4 60.Ke3 Be6 61.Bd4 Bf5 62.Be5 Be4 63.Bd4 Bh1 64.Bf6 Bg2 65.Bd4 Kb3 66.Kd2
33/40 00:03 12,830k 3,837k +1.91 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bf6 Bh1 57.Bd4 Kb3 58.Kd2 Bf3 59.Bf6 Kc4 60.Ke3 Bg4 61.Ba1 Bd7 62.Bd4 Bh3 63.Be5 Be6 64.Bf6 Bf5 65.Be5 Bg4
34/40 00:03 15,124k 3,877k +1.91 47. ... Be4 48.g4 a3 49.Kf2 f5 50.Kg3 fxg4 51.Kxg4 Kd7 52.Kf4 Kc6 53.Ke3 Kc5 54.Bd4+ Kc4 55.Be5 Bg2 56.Bf6 Bh1 57.Bd4 Kb3 58.Kd2 Bf3 59.Bf6 Kc4 60.Ke3 Bg4 61.Ba1 Bd7 62.Bd4 Bh3 63.Be5 Be6 64.Bf6 Bf5 65.Be5 Be4 66.Bf6
35/45 00:05 21,185k 3,895k +1.91 47. ... Be4 48.g4 f5 49.gxf5+ Bxf5 50.Kf2 Kd6 51.Bb4+ Kc6 52.Ke3 Kb5 53.Be7 Kc4 54.Kd2 Kb3 55.Bd6 a3 56.Be5 Kc4 57.Ke3 Bh3 58.Bd4 Be6 59.Ba1 Bd7 60.Bd4 Bh3 61.Be5 Kb3 62.Kd2 Bf5 63.Bf6 Kc4 64.Ke3 Bb1 65.Bd4 Be4 66.Be5 Bg2
36/47 00:06 25,725k 3,952k +1.91 47. ... Be4 48.g4 f5 49.gxf5+ Bxf5 50.Kf2 Kd6 51.Bb4+ Kc6 52.Ke3 Kb5 53.Be7 Kc4 54.Kd2 Kb3 55.Bd6 a3 56.Be5 Kc4 57.Ke3 Bh3 58.Bd4 Be6 59.Be5 Bd7 60.Bd4 Bh3 61.Be5 Kb3 62.Kd2 Bf5 63.Bf6 Kc4 64.Ke3 Bb1 65.Bd4 Be4 66.Be5 Bg2 67.Bf6 Bh1 68.Bd4 Kb3 69.Kd2
37/47 00:07 28,701k 4,002k +1.91 47. ... Be4 48.g4 f5 49.gxf5+ Bxf5 50.Kf2 Kd6 51.Bb4+ Kc6 52.Ke3 Kb5 53.Be7 Kc4 54.Kd2 Kb3 55.Bd6 a3 56.Be5 Kc4 57.Ke3 Bh3 58.Bd4 Be6 59.Be5 Bd7 60.Bd4 Bh3 61.Be5 Kb3 62.Kd2 Bf5 63.Bf6 Kc4 64.Ke3 Bb1 65.Bd4 Be4 66.Be5 Bg2 67.Bf6 Bh1 68.Bd4 Kb3 69.Kd2 Bf3
38/47+ 00:08 34,047k 4,048k +1.99 47. ... Be4
38/47 00:10 41,473k 4,127k +1.92 47. ... Be4 48.Kf2 f5 49.g3 Kd6 50.Bd4 Kc6 51.Ke2 a3 52.Kd2 a2 53.Kc1 Kb5 54.Kd2 Kc4 55.Ke3 Kb3 56.Kd2 Kb4 57.Bf6 Kc5 58.Ke3 Bc2 59.Bc3 Kb5 60.Kd4 Be4 61.Ke3 Ka4 62.Kd2 Bb1 63.Bd4 Kb3 64.Bf6 Kc4 65.Ke3 Kb5 66.Kd2 Kc5 67.Ke3 Be4
39/47 00:10 42,227k 4,132k +1.92 47. ... Be4 48.Kf2 f5 49.g3 Kd6 50.Bd4 Kc6 51.Ke2 a3 52.Kd2 Kb5 53.Kc3 a2 54.Kd2 Kc4 55.Ke3 Bb1 56.Bf6 Kb4 57.Bd4 Kb5 58.Bf6 Be4 59.Be5 Kb4 60.Bf6 Kb3 61.Kd2 Bb1 62.Bd4 Kc4 63.Ke3 Be4 64.Bf6 Bf3 65.Be5 Bg2 66.Bf6 Kb3 67.Kd2
40/47 00:11 46,511k 4,143k +1.92 47. ... Be4 48.Kf2 f5 49.g3 Kd6 50.Bd4 Kc6 51.Ke2 a3 52.Kd2 Kb5 53.Kc3 a2 54.Kd2 Kc4 55.Ke3 Bb1 56.Bf6 Kb4 57.Bd4 Kb5 58.Bf6 Be4 59.Be5 Kb4 60.Bf6 Kb3 61.Kd2 Bb1 62.Bd4 Kc4 63.Ke3 Be4 64.Bf6 Bf3 65.Be5 Bh1 66.Bf6 Bg2 67.Bd4 Kb3 68.Kd2
41/47 00:11 49,201k 4,147k +1.92 47. ... Be4 48.Kf2 f5 49.g3 Kd6 50.Bd4 Kc6 51.Ke2 a3 52.Kd2 Kb5 53.Kc3 a2 54.Kd2 Kc4 55.Ke3 Bb1 56.Bf6 Kb4 57.Bd4 Kb5 58.Bf6 Be4 59.Be5 Kb4 60.Bf6 Kb3 61.Kd2 Bb1 62.Bd4 Kc4 63.Ke3 Bc2 64.Be5 Kb5 65.Kd2 Bb1 66.Bf6 Kc5 67.Ke3 Be4 68.Bd4+ Kc6 69.Bc3
42/47 00:16 67,312k 4,118k +1.92 47. ... Be4 48.Kf2 f5 49.g3 Kd6 50.Bd4 Kc6 51.Ke2 a3 52.Kd2 Kb5 53.Kc3 a2 54.Kd2 Kc4 55.Ke3 Bb1 56.Bf6 Kb4 57.Bd4 Kb5 58.Bf6 Be4 59.Be5 Kb4 60.Bf6 Kb3 61.Kd2 Kc4 62.Ke3 Bb1 63.Bd4 Bc2 64.Be5 Kb5 65.Kd2 Bb1 66.Bf6 Kb4 67.Bd4 Be4 68.Bf6 Kc5 69.Ke3
43/48+ 00:20 84,126k 4,137k +1.99 47. ... a3
43/48+ 00:21 89,837k 4,164k +2.06 47. ... a3
43/48+ 00:23 97,532k 4,201k +2.17 47. ... a3
43/48+ 00:26 112,538k 4,230k +2.33 47. ... a3
43/53+ 00:30 128,870k 4,207k +2.54 47. ... a3
43/53+ 00:35 149,703k 4,229k +2.82 47. ... a3
43/57+ 00:41 177,459k 4,237k +3.19 47. ... a3
43/57 00:42 180,676k 4,227k +3.19 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Bd4 f4 54.gxf4 Kxf4 55.Bb2 Kf5 56.Kf3 Bb1 57.Bg7 Be4+ 58.Ke3 Kg4 59.Bf6 Bb1 60.Kf2 Kf5 61.Bh8 Ke4 62.Bb2 Kf4 63.Ba1 Be4 64.Ke2 Kg3 65.Bf6 Bb1 66.Be5+ Kh3 67.Bf6 d4 68.Bxd4 Kxh4 69.Kf3 g5 70.Kg2 Be4+ 71.Kh2
44/57 00:44 186,579k 4,236k +3.19 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg2 63.Bb2 Be4 64.Bd4 Kh3 65.Kb2 Bb1 66.Bf6 Kg4 67.Kc1 Kg3 68.Kb2 Kf3 69.Bc3 Ke4 70.Ba5 Ke3 71.Bb6+ Ke4 72.Bg1
45/57 00:53 231,713k 4,304k +3.20 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ba1 g5 66.Ke2 g4 67.Kf2 Kh3 68.Be5 g3+ 69.Kg1 Bd3 70.Ba1 Kg4 71.Bd4 Be4 72.Kf1 Kf3 73.Bb2 Ke3
46/57 00:54 232,747k 4,306k +3.20 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ba1 g5 66.Ke2 g4 67.Kf2 Kh3 68.Be5 g3+ 69.Kg1 Bd3 70.Ba1 Kg4 71.Bd4 Be4 72.Kf1 Kf3 73.Bb2 Ke3 74.Ba1 Kd3 75.Bf6
47/58 00:54 235,004k 4,310k +3.20 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ba1 g5 66.Ke2 g4 67.Kf2 Kh3 68.Be5 g3+ 69.Kg1 Bd3 70.Ba1 Kg4 71.Bd4 Be4 72.Kf1 Kf3 73.Bb2 Ke3 74.Ba1 Kd3 75.Bf6 Kc2 76.Kg1
48/59 00:57 246,509k 4,310k +3.20 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ba1 g5 66.Ke2 g4 67.Kf2 Kh3 68.Be5 g3+ 69.Kg1 Bd3 70.Ba1 Kg4 71.Bd4 Be4 72.Kf1 Kf3 73.Bb2 Ke3 74.Ba1 Kd3 75.Bf6 Kc2 76.Kg1 Kb1
49/60 00:58 251,100k 4,316k +3.20 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ba1 g5 66.Ke2 g4 67.Kf2 Kh3 68.Be5 g3+ 69.Kg1 Bd3 70.Ba1 Kg4 71.Bd4 Be4 72.Kf1 Kf3 73.Bb2 Ke3 74.Ba1 Kd3 75.Bf6 Kc2 76.Kg1 Kb1 77.Bd4
50/60 01:00 260,447k 4,303k +3.20 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ba1 g5 66.Ke2 g4 67.Kf2 Kh3 68.Be5 g3+ 69.Kg1 Bd3 70.Ba1 Kg4 71.Bd4 Be4 72.Kf1 Kf3 73.Bb2 Ke3 74.Ba1 Kd3 75.Bf6 Kc2 76.Kg1 Kb1 77.Bd4
51/66 01:27 381,050k 4,332k +3.22 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ke3 g5 66.Kf2 Kh3 67.Be5 g4 68.Kf1 g3 69.Kg1 Bd3 70.Ba1 Kg4 71.Bd4 Be4 72.Kf1 Kf3 73.Bb2 Ke3 74.Ba1 Kf4 75.Bg7 Kf5 76.Bb2 Bd3+ 77.Kg1 Kg4
52/66 01:29 386,132k 4,332k +3.22 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ke3 g5 66.Kf2 Be4 67.Bf6 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Bb1 74.Kf1 Be4 75.Bg7 Kf4 76.Bd4 Bb1 77.Bb2 Bd3+ 78.Kg1 Be4
53/66 01:32 402,072k 4,344k +3.22 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd2 d4 64.Bxd4 Kxh4 65.Ke3 g5 66.Kf2 Be4 67.Bf6 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Bb1 74.Kf1 Be4 75.Bg7 Kf4 76.Bd4 Bb1 77.Bb2 Bd3+ 78.Kg1 Be4
54/66+ 02:33 657,981k 4,293k +3.30 47. ... a3
54/66 03:29 899,681k 4,286k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Bb1 74.Kf1 Be4 75.Bg7 Ke3 76.Ba1 Kd3
55/66 03:47 976,574k 4,291k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bg7 Kf4 77.Kg1 Kg4 78.Kf1 Kf3 79.Ba1 Ke3
56/68 03:50 986,232k 4,288k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bg7 Kf4 77.Kg1 Kg4 78.Kf1 Kf5 79.Bd4 Kf4 80.Bf6
57/68 03:54 1,006,719k 4,290k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bg7 Kf4 77.Kg1 Kg4 78.Kf1 Kf5 79.Bd4 Kf4 80.Bf6 Ke3
58/69 03:59 1,026,371k 4,290k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bg7 Kf4 77.Kg1 Kg4 78.Kf1 Kf5 79.Bd4 Kf4 80.Bf6 Bd3+ 81.Kg2 Bc2
59/70 04:30 1,158,892k 4,291k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bg7 Kf4 77.Kg1 Kg4 78.Kf1 Kf5 79.Bd4 Kf4 80.Bf6 Bd3+ 81.Kg2 Bc2 82.Bb2
60/70 04:53 1,261,646k 4,294k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bg7 Kf4 77.Kg1 Kg4 78.Kf1 Kf5 79.Bd4 Kf4 80.Bf6 Bd3+ 81.Kg2 Bc2 82.Bb2
61/73 04:57 1,276,898k 4,293k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bd4 Kh4 77.Bb2 Bc2 78.Kg2 Kg4 79.Bd4 Be4+ 80.Kg1 Kf4 81.Ba1 Kf3 82.Kf1 Ke3 83.Be5
62/73 05:08 1,324,457k 4,295k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bd4 Kh4 77.Bb2 Bc2 78.Kg2 Kg4 79.Be5 Bb1 80.Kf1 Kh3 81.Kg1 Be4 82.Bb2 Kg4 83.Kf1
63/73 05:17 1,363,706k 4,296k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bd4 Kh4 77.Bb2 Bc2 78.Kg2 Kg4 79.Be5 Bb1 80.Kf1 Kh3 81.Kg1 Be4 82.Bb2 Kg4 83.Kf1 Kf4
64/75+ 12:38 3,297,267k 4,347k +3.44 47. ... a3
64/79+ 17:34 4,563,684k 4,330k +3.51 47. ... a3
64/79+ 23:32 6,148,745k 4,353k +3.62 47. ... a3
64/79+ 28:03 7,364,557k 4,375k +3.77 47. ... a3
64/79+ 32:11 8,563,352k 4,434k +3.98 47. ... a3
64/79+ 36:59 9,859,384k 4,443k +4.27 47. ... a3
64/83+ 44:34 11,923,945k 4,458k +4.64 47. ... a3
64/83+ 52:18 14,003,050k 4,461k +5.12 47. ... a3
64/84+ 1:02:05 16,202,796k 4,350k +5.75 47. ... a3
64/84+ 1:13:44 18,916,281k 4,276k +6.54 47. ... a3

[MikeB]

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47


not yet released Macfish 8.2 sse

Code: Select all

single core - 512 hash
info depth 35 seldepth 45 multipv 1 score cp 185 nodes 20444471 nps 2341863 hashfull 155 tbhits 0 time 8730 pv f5e4 g2g3 f6f5 g1f2 e6d6 c3b4 d6c6 b4e7 c6b5 f2e2 b5c4 e2d1 c4b3 e7f6 a4a3 d1d2 b3c4 d2e3 e4g2 f6d4 g2f3 d4g7 f3d1 g7d4 d1c2 d4f6 c4b3 e3d2 c2e4 d2c1 b3c4 f6e7 a3a2 c1b2 d5d4 e7g5 c4d3 b2a2 d3c2
 info depth 36 seldepth 45 multipv 1 score cp 192 nodes 45494148 nps 2413354 hashfull 366 tbhits 0 time 18851 pv f5h3
 info depth 36 seldepth 45 multipv 1 score cp 200 nodes 50553768 nps 2436326 hashfull 400 tbhits 0 time 20750 pv f5h3
 info depth 36 seldepth 47 multipv 1 score cp 210 nodes 54246407 nps 2450043 hashfull 423 tbhits 0 time 22141 pv f5h3
 info depth 36 seldepth 47 multipv 1 score cp 226 nodes 63216302 nps 2470158 hashfull 476 tbhits 0 time 25592 pv f5h3
 info depth 36 seldepth 47 multipv 1 score cp 247 nodes 74734595 nps 2476295 hashfull 545 tbhits 0 time 30180 pv f5h3
 info depth 36 seldepth 51 multipv 1 score cp 275 nodes 89339115 nps 2479919 hashfull 618 tbhits 0 time 36025 pv f5h3
 info depth 36 seldepth 51 multipv 1 score cp 252 nodes 100728124 nps 2488097 hashfull 670 tbhits 0 time 40484 pv f5h3 g1f2
 info depth 36 seldepth 51 multipv 1 score cp 282 nodes 105038011 nps 2488109 hashfull 683 tbhits 0 time 42216 pv f5h3
 info depth 36 seldepth 55 multipv 1 score cp 345 nodes 128450460 nps 2490025 hashfull 770 tbhits 0 time 51586 pv f5h3
 info depth 36 seldepth 55 multipv 1 score cp 425 nodes 157767883 nps 2492344 hashfull 839 tbhits 0 time 63301 pv f5h3
 info depth 36 seldepth 56 multipv 1 score cp 353 nodes 180303779 nps 2497801 hashfull 875 tbhits 0 time 72185 pv f5h3 g1f2
 info depth 36 seldepth 56 multipv 1 score cp 443 nodes 186843932 nps 2498848 hashfull 891 tbhits 0 time 74772 pv f5h3
 info depth 36 seldepth 56 multipv 1 score cp 527 nodes 207910315 nps 2508570 hashfull 903 tbhits 0 time 82880 pv f5h3 g1f2 e6f5 f2e3 h3g2 c3b2 f5e6 e3d4 g2e4 d4c3 f6f5 b2a3 e6e5 a3c5 e4g2 c3d3 f5f4 c5d4 e5f5 d4c5 f5g4 d3c2 g2e4 c2d1 g4h4 d1e1 g6g5 c5e7 d5d4 e7c5 d4d3 c5f2 h4g4 e1d2 a4a3 f2d4 g4g3 d4e5 a3a2 d2e1 g3g4 e1d2 g4h4 e5a1 h4g4 a1c3 g4g3
 info depth 37 seldepth 58 multipv 1 score cp 453 nodes 219598084 nps 2513714 hashfull 920 tbhits 0 time 87360 pv f5h3 g1h2
 info depth 37 seldepth 58 multipv 1 score cp 527 nodes 221997185 nps 2512445 hashfull 922 tbhits 0 time 88359 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 537 nodes 231896456 nps 2520038 hashfull 925 tbhits 0 time 92021 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 553 nodes 243721708 nps 2531121 hashfull 929 tbhits 0 time 96290 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 533 nodes 251182913 nps 2539766 hashfull 933 tbhits 0 time 98900 pv f5h3 g1f2
 info depth 37 seldepth 58 multipv 1 score cp 554 nodes 254117386 nps 2542267 hashfull 934 tbhits 0 time 99957 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 591 nodes 268694380 nps 2549234 hashfull 941 tbhits 0 time 105402 pv f5h3
 info depth 37 seldepth 58 multipv 1 score cp 560 nodes 280547275 nps 2547928 hashfull 952 tbhits 0 time 110108 pv f5h3 g1f2
 info depth 37 seldepth 58 multipv 1 score cp 600 nodes 287505540 nps 2554968 hashfull 955 tbhits 0 time 112528 pv f5h3
 info depth 37 seldepth 60 multipv 1 score cp 548 nodes 288848689 nps 2553990 hashfull 955 tbhits 0 time 113097 pv f5h3 g1f2
 info depth 37 seldepth 60 multipv 1 score cp 447 nodes 288983639 nps 2553987 hashfull 955 tbhits 0 time 113150 pv f5h3 g1f2
 info depth 37 seldepth 60 multipv 1 score cp 530 nodes 291025982 nps 2553285 hashfull 957 tbhits 0 time 113981 pv f5h3
 info depth 37 seldepth 72 multipv 1 score cp 653 nodes 322293604 nps 2561178 hashfull 969 tbhits 0 time 125838 pv f5h3 g1f2 e6f5 f2e3 h3g2 c3b2 f5e6 e3d4 g2e4 h4h5 g6h5 d4e3 f6f5 e3f4 d5d4 b2d4 a4a3 d4h8 e6d5 h8f6 a3a2 f4g3 h5h4 g3h3 e4g2 h3h4 d5c4 h4g3 g2e4 g3f2 c4d3 f6e5 d3c2 f2e1 c2b1 e1d2 a2a1q e5a1 b1a1 d2e3 a1a2 e3d2 a2b3 d2e2 b3b2 e2e3 b2c2 e3d4 c2d2

Code: Select all

12 Cores with 18 threads with 512 Hash
 info depth 27 seldepth 43 multipv 1 score cp 176 nodes 31495036 nps 31589805 tbhits 0 time 997 pv f5e4 g1f2 f6f5 g2g3 e6d6 c3b4 d6e5 f2e3 d5d4 e3d2 e5d5 d2c1 d5c4 b4a3 d4d3 a3b2 c4b3 b2g7 a4a3 g7e5 b3b4 e5d6 b4c3 d6e5 c3b3 e5d6 e4g2 d6e5 b3a2 e5d4 g2d5 d4f6
 info depth 28 seldepth 43 multipv 1 score cp 303 nodes 113089380 nps 33527832 hashfull 569 tbhits 0 time 3373 pv f5h3
 info depth 28 seldepth 43 multipv 1 score cp 337 nodes 132695048 nps 33619216 hashfull 638 tbhits 0 time 3947 pv f5h3 g1f2 e6f5 f2e3 h3g2 c3b2 g2e4 e3f2 f5e6 f2e3 f6f5 e3f4 e6d6 b2d4 d6c6 d4a1 c6c5 f4e5 a4a3 a1c3 c5c4 c3a1 c4b3 a1d4 a3a2 e5f4 b3c4 d4a1 d5d4 f4g3 c4c5 a1b2 d4d3 g3f2
 info depth 29 seldepth 43 multipv 1 score cp 345 nodes 133842319 nps 33620276 hashfull 640 tbhits 0 time 3981 pv f5h3
 info depth 29 seldepth 43 multipv 1 score cp 352 nodes 137665359 nps 33634341 hashfull 650 tbhits 0 time 4093 pv f5h3
 info depth 29 seldepth 43 multipv 1 score cp 363 nodes 140709946 nps 33678780 hashfull 654 tbhits 0 time 4178 pv f5h3
 info depth 29 seldepth 43 multipv 1 score cp 369 nodes 147424585 nps 33781985 hashfull 674 tbhits 0 time 4364 pv f5h3 g1f2 e6f5 g2g3 f5e4 f2e2 a4a3 c3b4 a3a2 b4c3 h3e6 c3a1 d5d4 a1b2 f6f5 e2d2 e4f3 b2d4 f3g3 d2e2 f5f4 e2f1 g3h4 f1f2 h4g4 f2e2 g6g5 e2d2 g4f5 d4b2 g5g4 d2e2 f5e4
 info depth 30 seldepth 44 multipv 1 score cp 377 nodes 152181063 nps 33833050 hashfull 688 tbhits 0 time 4498 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 384 nodes 157606030 nps 33842823 hashfull 696 tbhits 0 time 4657 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 395 nodes 162754193 nps 33907123 hashfull 707 tbhits 0 time 4800 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 410 nodes 164669706 nps 33917550 hashfull 712 tbhits 0 time 4855 pv f5h3
 info depth 30 seldepth 44 multipv 1 score cp 431 nodes 197700254 nps 34305093 hashfull 771 tbhits 0 time 5763 pv f5h3
 info depth 30 seldepth 47 multipv 1 score cp 459 nodes 203844969 nps 34375205 hashfull 782 tbhits 0 time 5930 pv f5h3
 info depth 30 seldepth 47 multipv 1 score cp 496 nodes 228068742 nps 34576825 hashfull 811 tbhits 0 time 6596 pv f5h3
 info depth 30 seldepth 47 multipv 1 score cp 513 nodes 249604926 nps 34934209 hashfull 828 tbhits 0 time 7145 pv f5h3 g1f2 e6f5 f2e3 h3g2 e3d3 a4a3 d3c2 f5e4 c3f6 d5d4 f6g5 e4f3 c2b3 f3e2 b3a3 d4d3 a3b2 d3d2 g5d2 e2d2 b2a1 d2d3 a1b1 g2e4 b1c1 d3e2 c1b2 e2d2 b2a2 d2d3 a2b2 d3e3 b2c1 e3f3 c1d1 f3g3 d1d2 g3g4
 info depth 31 seldepth 47 multipv 1 score cp 520 nodes 251603052 nps 34935164 hashfull 831 tbhits 0 time 7202 pv f5h3
 info depth 31 seldepth 47 multipv 1 score cp 493 nodes 253966839 nps 34943153 hashfull 833 tbhits 0 time 7268 pv f5h3 g1f2
 info depth 31 seldepth 48 multipv 1 score cp 520 nodes 255441742 nps 34944150 hashfull 833 tbhits 0 time 7310 pv f5h3
 info depth 31 seldepth 51 multipv 1 score cp 535 nodes 275151009 nps 35208062 hashfull 844 tbhits 0 time 7815 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 556 nodes 298653574 nps 35494838 hashfull 865 tbhits 0 time 8414 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 585 nodes 319169145 nps 35629509 hashfull 879 tbhits 0 time 8958 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 557 nodes 348623758 nps 35815056 hashfull 897 tbhits 0 time 9734 pv f5h3 c3b2
 info depth 31 seldepth 52 multipv 1 score cp 591 nodes 350681627 nps 35805761 hashfull 901 tbhits 0 time 9794 pv f5h3
 info depth 31 seldepth 52 multipv 1 score cp 643 nodes 398637845 nps 36033430 hashfull 920 tbhits 0 time 11063 pv f5h3 c3b2 e6f5 g1f1 f5e4 f1e2 h3g2 b2f6 a4a3 f6c3 d5d4 c3a1 g2f3 e2d2 f3g4 d2c2 e4e3 c2b3 d4d3 a1f6 g4h3 f6g5 e3e2 b3a3 h3g2 a3b4 d3d2 g5d2 e2d2 b4c5 d2e3 c5d6 g2e4 d6e5 e3f3 e5f6 f3g4 f6f7 g4h4 f7g7 g6g5 g7f6 g5g4 f6f7 g4g3
 info depth 32 seldepth 52 multipv 1 score cp 627 nodes 400082715 nps 36030503 hashfull 921 tbhits 0 time 11104 pv f5h3 g2g4
 info depth 32 seldepth 52 multipv 1 score cp 643 nodes 402463067 nps 36037165 hashfull 921 tbhits 0 time 11168 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 654 nodes 412607648 nps 36076562 hashfull 925 tbhits 0 time 11437 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 669 nodes 426259073 nps 36099176 hashfull 931 tbhits 0 time 11808 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 690 nodes 477992743 nps 36385228 hashfull 944 tbhits 0 time 13137 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 718 nodes 507930056 nps 36536473 hashfull 951 tbhits 0 time 13902 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 755 nodes 603828358 nps 36591222 hashfull 973 tbhits 0 time 16502 pv f5h3
 info depth 32 seldepth 52 multipv 1 score cp 804 nodes 745067363 nps 37040385 hashfull 987 tbhits 0 time 20115 pv f5h3
 info depth 32 seldepth 54 multipv 1 score cp 866 nodes 970676625 nps 37202078 hashfull 998 tbhits 0 time 26092 pv f5h3
 info depth 32 seldepth 56 multipv 1 score cp 857 nodes 974373677 nps 37195513 hashfull 998 tbhits 0 time 26196 pv f5h3 g2g4 h3g4 g1f2 e6f5 f2e3 a4a3 c3a1 g4h3 e3d4 h3g2 d4d3 a3a2 a1b2 g2e4 d3e3 f5e6 e3f4 f6f5 f4e3 e6d6 e3f4 d6c5 b2a1 c5c6 f4e5 c6b5 h4h5 g6h5 e5f4 b5c4 f4e3 c4c5 e3d2 c5b5 d2c1 b5c4 c1b2 d5d4 b2a2 f5f4 a2b2 f4f3

This is the deal , code to see a Bh3 type move costs 34 ELO. but then Stockfish can afford 34 ELO ;>) , looking to keep the ELO loss minimized, this may the best - not sure yet.

Code: Select all

8192 rounds and 8192 games completed...
time control: 1000+10
Date: 12/16/16 : 07:42:41
8192 game(s) loaded
Rank Name                      Rating   Δ     +    -     #     Σ    Σ%     W    L    D   W%    =%   OppR 
---------------------------------------------------------------------------------------------------------
   1 Stockfish-Official 16121   3117   0.0    2    2  8192 4508.5  55.0 1912 1087 5193  23.3  63.4  3083 
   2 Stockfish 161216 64 POPC   3083  34.8    2    2  8192 3683.5  45.0 1087 1912 5193  13.3  63.4  3117 
---------------------------------------------------------------------------------------------------------

[Uri Blass]

Stockfish still did not solve the fail high on my computer.
Here is the rest of the analysis so far.

I still do not believe that a3 is winning.

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47

Stockfish_16121212_x64_modern:
64/89+ 1:26:57 22,351,073k 4,284k +7.56 47. ... a3
64/89+ 1:42:46 26,391,720k 4,280k +8.85 47. ... a3
64/89+ 2:01:14 31,413,235k 4,318k +10.48 47. ... a3
64/89+ 2:33:25 39,395,426k 4,280k +12.54 47. ... a3
64/98+ 3:34:26 56,441,530k 4,387k +15.14 47. ... a3
64/98+ 4:30:27 72,766,076k 4,484k +18.39 47. ... a3
64/98+ 5:19:13 87,012,668k 4,543k +22.49 47. ... a3
64/98+ 6:50:49 113,834,255k 4,618k +27.62 47. ... a3

[MikeB]

Stockfish still did not solve the fail high on my computer.
Here is the rest of the analysis so far.

I still do not believe that a3 is winning.

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47

Stockfish_16121212_x64_modern:
64/89+ 1:26:57 22,351,073k 4,284k +7.56 47. ... a3
64/89+ 1:42:46 26,391,720k 4,280k +8.85 47. ... a3
64/89+ 2:01:14 31,413,235k 4,318k +10.48 47. ... a3
64/89+ 2:33:25 39,395,426k 4,280k +12.54 47. ... a3
64/98+ 3:34:26 56,441,530k 4,387k +15.14 47. ... a3
64/98+ 4:30:27 72,766,076k 4,484k +18.39 47. ... a3
64/98+ 5:19:13 87,012,668k 4,543k +22.49 47. ... a3
64/98+ 6:50:49 113,834,255k 4,618k +27.62 47. ... a3

I'm not convinced on a3 either, so i thought I would play it out at 5 m 5s with 12 cores and using 18 threads. But this latest version finds Bh3 and then sees mate after a few moves.

[pgn][Event "Computer Chess Game"]
[Site "Mac-Pro.local"]
[Date "2016.12.16"]
[Round "-"]
[White "MacCfish-mf v8.1 64 POPC"]
[Black "MacCfish-mf v8.1 64 POPC"]
[Result "0-1"]
[TimeControl "300+5"]
[FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 1"]
[SetUp "1"]


1... Bh3 {+6.52/40 1:14} 2. Kf2 {-4.85/43 1:14} Kf5 {+9.13/24 10} 3. g3
{-4.87/25 7} Ke4 {+16.44/31 4} 4. Bb2 {-63.75/36 1:05} Bg4 {+56.22/32 5} 5.
Ke1 {-1000.33/40 17} Kd3 {+1000.38/38 15} 6. Kf1 {-1000.27/44 12}
0-1[/pgn]

[Uri Blass]

Stockfish still did not solve the fail high on my computer.
Here is the rest of the analysis so far.

I still do not believe that a3 is winning.

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47

Stockfish_16121212_x64_modern:
64/89+ 1:26:57 22,351,073k 4,284k +7.56 47. ... a3
64/89+ 1:42:46 26,391,720k 4,280k +8.85 47. ... a3
64/89+ 2:01:14 31,413,235k 4,318k +10.48 47. ... a3
64/89+ 2:33:25 39,395,426k 4,280k +12.54 47. ... a3
64/98+ 3:34:26 56,441,530k 4,387k +15.14 47. ... a3
64/98+ 4:30:27 72,766,076k 4,484k +18.39 47. ... a3
64/98+ 5:19:13 87,012,668k 4,543k +22.49 47. ... a3
64/98+ 6:50:49 113,834,255k 4,618k +27.62 47. ... a3

some more analysis(still did not get a final score and unfortunately I trust no score of stockfish to be a winning score based on bad experience)

I wonder what is the plan of stockfish after 47...a3 48.Kf2 at depth 64 but stockfish does not show it in the output.

So far there are 20 fail high and one fail low at depth 64 with no final score.
Here is the interesting part when stockfish's branching factor is more than 100.

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47

Stockfish_16121212_x64_modern:
63/73 05:17 1,363,706k 4,296k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bd4 Kh4 77.Bb2 Bc2 78.Kg2 Kg4 79.Be5 Bb1 80.Kf1 Kh3 81.Kg1 Be4 82.Bb2 Kg4 83.Kf1 Kf4
64/75+ 12:38 3,297,267k 4,347k +3.44 47. ... a3
64/79+ 17:34 4,563,684k 4,330k +3.51 47. ... a3
64/79+ 23:32 6,148,745k 4,353k +3.62 47. ... a3
64/79+ 28:03 7,364,557k 4,375k +3.77 47. ... a3
64/79+ 32:11 8,563,352k 4,434k +3.98 47. ... a3
64/79+ 36:59 9,859,384k 4,443k +4.27 47. ... a3
64/83+ 44:34 11,923,945k 4,458k +4.64 47. ... a3
64/83+ 52:18 14,003,050k 4,461k +5.12 47. ... a3
64/84+ 1:02:05 16,202,796k 4,350k +5.75 47. ... a3
64/84+ 1:13:44 18,916,281k 4,276k +6.54 47. ... a3
64/89+ 1:26:57 22,351,073k 4,284k +7.56 47. ... a3
64/89+ 1:42:46 26,391,720k 4,280k +8.85 47. ... a3
64/89+ 2:01:14 31,413,235k 4,318k +10.48 47. ... a3
64/89+ 2:33:25 39,395,426k 4,280k +12.54 47. ... a3
64/98+ 3:34:26 56,441,530k 4,387k +15.14 47. ... a3
64/98+ 4:30:27 72,766,076k 4,484k +18.39 47. ... a3
64/98+ 5:19:13 87,012,668k 4,543k +22.49 47. ... a3
64/98+ 6:50:49 113,834,255k 4,618k +27.62 47. ... a3
64/98- 7:50:38 131,168,822k 4,645k +22.46 47. ... a3 48.Kf2
64/98+ 7:51:16 131,356,450k 4,645k +28.70 47. ... a3
64/100+ 9:10:51 153,001,076k 4,629k +38.81 47. ... a3

[MikeGL]

Stockfish still did not solve the fail high on my computer.
Here is the rest of the analysis so far.

I still do not believe that a3 is winning.

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47

Stockfish_16121212_x64_modern:
64/89+ 1:26:57 22,351,073k 4,284k +7.56 47. ... a3
64/89+ 1:42:46 26,391,720k 4,280k +8.85 47. ... a3
64/89+ 2:01:14 31,413,235k 4,318k +10.48 47. ... a3
64/89+ 2:33:25 39,395,426k 4,280k +12.54 47. ... a3
64/98+ 3:34:26 56,441,530k 4,387k +15.14 47. ... a3
64/98+ 4:30:27 72,766,076k 4,484k +18.39 47. ... a3
64/98+ 5:19:13 87,012,668k 4,543k +22.49 47. ... a3
64/98+ 6:50:49 113,834,255k 4,618k +27.62 47. ... a3

some more analysis(still did not get a final score and unfortunately I trust no score of stockfish to be a winning score based on bad experience)

I wonder what is the plan of stockfish after 47...a3 48.Kf2 at depth 64 but stockfish does not show it in the output.

So far there are 20 fail high and one fail low at depth 64 with no final score.
Here is the interesting part when stockfish's branching factor is more than 100.

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47

Stockfish_16121212_x64_modern:
63/73 05:17 1,363,706k 4,296k +3.37 47. ... a3 48.Kf2 Bc2 49.Ke3 Kf5 50.g3 Kg4 51.Kf2 f5 52.Be5 a2 53.Kg2 Be4+ 54.Kf2 Bb1 55.Kg2 Bc2 56.Kf2 Be4 57.Bf6 f4 58.gxf4 Kxf4 59.Ke2 Kg4 60.Ke3 Bb1 61.Kd2 Kh3 62.Kc1 Kg3 63.Kd1 d4 64.Bxd4 Kxh4 65.Ke1 g5 66.Bf6 Be4 67.Kf2 Kh3 68.Kg1 Kg3 69.Kf1 g4 70.Kg1 Kf3 71.Kf1 g3 72.Bd4 Bd3+ 73.Kg1 Kg4 74.Be5 Be4 75.Kf1 Kg5 76.Bd4 Kh4 77.Bb2 Bc2 78.Kg2 Kg4 79.Be5 Bb1 80.Kf1 Kh3 81.Kg1 Be4 82.Bb2 Kg4 83.Kf1 Kf4
64/75+ 12:38 3,297,267k 4,347k +3.44 47. ... a3
64/79+ 17:34 4,563,684k 4,330k +3.51 47. ... a3
64/79+ 23:32 6,148,745k 4,353k +3.62 47. ... a3
64/79+ 28:03 7,364,557k 4,375k +3.77 47. ... a3
64/79+ 32:11 8,563,352k 4,434k +3.98 47. ... a3
64/79+ 36:59 9,859,384k 4,443k +4.27 47. ... a3
64/83+ 44:34 11,923,945k 4,458k +4.64 47. ... a3
64/83+ 52:18 14,003,050k 4,461k +5.12 47. ... a3
64/84+ 1:02:05 16,202,796k 4,350k +5.75 47. ... a3
64/84+ 1:13:44 18,916,281k 4,276k +6.54 47. ... a3
64/89+ 1:26:57 22,351,073k 4,284k +7.56 47. ... a3
64/89+ 1:42:46 26,391,720k 4,280k +8.85 47. ... a3
64/89+ 2:01:14 31,413,235k 4,318k +10.48 47. ... a3
64/89+ 2:33:25 39,395,426k 4,280k +12.54 47. ... a3
64/98+ 3:34:26 56,441,530k 4,387k +15.14 47. ... a3
64/98+ 4:30:27 72,766,076k 4,484k +18.39 47. ... a3
64/98+ 5:19:13 87,012,668k 4,543k +22.49 47. ... a3
64/98+ 6:50:49 113,834,255k 4,618k +27.62 47. ... a3
64/98- 7:50:38 131,168,822k 4,645k +22.46 47. ... a3 48.Kf2
64/98+ 7:51:16 131,356,450k 4,645k +28.70 47. ... a3
64/100+ 9:10:51 153,001,076k 4,629k +38.81 47. ... a3

But if MultiPV is set to 15, SF8 finds Bh3 within 3 minues on my archaic dual-core @2.00Ghz 256MB hash

MultiPV set to 15
SF8 (32bit) finds Bh3 3mins 04seconds
Critter1.6 32bit is < 1.0 min
Rybka 4 also < 1.0 sec min


I wonder why engines were not coded to be MultiPV by default to find those difficult tactics.

-ml