This position look like winning for White, but can your engine solve it?

Discussion of anything and everything relating to chess playing software and machines.

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Chessqueen
Posts: 5588
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

This position look like winning for White, but can your engine solve it?

Post by Chessqueen »

This position look like winning for White, but can your engine solve it, and by just looking at it without an engine, you might think OH yes I can win this with White easy; first try it against an engine and then let any engine analyze it and see if it can find the winning move :?: I played it out against stockfish 13 NNUE and this is how it went . It played b6 and I played Be8, then it played b7 I played Bb5, then it promoted to Queen and I played Bf1, later I took the Bishop on h2 and formed a fortress that Stockfish 13 NNUE could NOT penetrated into my safe haven :roll:
[d]8/8/8/1P1K3b/6p1/5pP1/5P1B/7k w - - 0 1
Who is 17 years old GM Gukesh 2nd at the Candidate in Toronto?
https://indianexpress.com/article/sport ... t-9281394/
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Chessqueen
Posts: 5588
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: This position look like winning for White, but can your engine solve it?

Post by Chessqueen »

Chessqueen wrote: ↑Sat Apr 24, 2021 5:18 pm This position look like winning for White, but can your engine solve it, and by just looking at it without an engine, you might think OH yes I can win this with White easy; first try it against an engine and then let any engine analyze it and see if it can find the winning move :?: I played it out against stockfish 13 NNUE and this is how it went . It played b6 and I played Be8, then it played b7 I played Bb5, then it promoted to Queen and I played Bf1, later I took the Bishop on h2 and formed a fortress that Stockfish 13 NNUE could NOT penetrated into my safe haven :roll:
There is a way to win with White to play, but can any engine find it :?:

[pgn][Event "Computer chess game"]
[Site "MININT-UB2PIMJ"]
[Date "2021.04.24"]
[Round "?"]
[White "Stockfish_13_win_x64_bmi2"]
[Result "1/2"]
[Black "Chessqueen"]
[BlackElo "2000"]
[Time "11:52:07"]
[WhiteElo "3475"]
[TimeControl "120+1"]
[SetUp "1"]
[FEN "8/8/8/1P1K3b/6p1/5pP1/5P1B/7k w - - 0 1"]
[Termination "adjudication"]
[PlyCount "35"]
[WhiteType "program"]
[BlackType "human"]


1. b6 Be8 2. Kc5 Bg6 3. Kd4 Be8 4. Kc5 Bg6 5. Kd4 Be8 6. b7 Bb5 7. b8=Q Bf1 8. Qc8 Bh3
9. Kc5 Bf1 10. Qc7 Kxh2 11. Kd5 Bh3 12. Qb8 Bf1 13. Qb4 Bh3 14. Qe1 Bf1 15. Qb4 Bh3
16. Qd4 Kg2 17. Ke4 Kh2 18. Qa1 Bf1 19. Qa7 Bh3 20. Qd7 Kg2 21. Qd1 Kh2 22. Kf4 Kg2
23. Ke4 Kh2 24. Ke3 Bf1 25. Kf4 Bh3 26. Qc1[/pgn]
Who is 17 years old GM Gukesh 2nd at the Candidate in Toronto?
https://indianexpress.com/article/sport ... t-9281394/
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Chessqueen
Posts: 5588
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: This position look like winning for White, but can your engine solve it?

Post by Chessqueen »

Chessqueen wrote: ↑Sat Apr 24, 2021 7:28 pm
Chessqueen wrote: ↑Sat Apr 24, 2021 5:18 pm This position look like winning for White, but can your engine solve it, and by just looking at it without an engine, you might think OH yes I can win this with White easy; first try it against an engine and then let any engine analyze it and see if it can find the winning move :?: I played it out against stockfish 13 NNUE and this is how it went . It played b6 and I played Be8, then it played b7 I played Bb5, then it promoted to Queen and I played Bf1, later I took the Bishop on h2 and formed a fortress that Stockfish 13 NNUE could NOT penetrated into my safe haven :roll:
There is a way to win with White to play, but can any engine find it :?:

[pgn][White "Honey-v13.1-x86-64-bmi2"]
[Black "ChessQueen"]
[Result "1/2"]
[BlackElo "2000"]
[Time "13:11:52"]
[WhiteElo "3475"]
[TimeControl "120+1"]
[SetUp "1"]
[FEN "8/8/8/1P1K3b/6p1/5pP1/5P1B/7k w - - 0 1"]
[Termination "adjudication"]
[PlyCount "39"]
[WhiteType "program"]
[BlackType "human"]

1. b6 Be8 2. Kc5 Bg6 3. Kd4 Be8 4. Kc5 Bg6 5. Kd4 Be8 6. b7 Bb5 7. b8=Q Bf1
8. Qc8 Bh3 9. Qc1+ Kxh2 10. Ke4 Kg2 11. Ke3 Kh2 12. Ke4 Kg2 13. Qe1 Kh2 14.
Kf5 Kg2 15. Kf4 Kh2 16. Kf5 Kg2 17. Kg5 Kh2 18. Qd1 Kg2 19. Kf5 Kh2 20. Qb1[/pgn]
Who is 17 years old GM Gukesh 2nd at the Candidate in Toronto?
https://indianexpress.com/article/sport ... t-9281394/
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Dann Corbit
Posts: 12541
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: This position look like winning for White, but can your engine solve it?

Post by Dann Corbit »

Yes, my engine can solve it.
8/8/8/1P1K3b/6p1/5pP1/5P1B/7k w - - acd 48; bm b6; ce 734; c0 "5 Honorable Mention, ts23 @2 {ea} {m}; 1933; Kasantjev, A LiburkinM; 1-0"; c3 "b6"; c6 "Arves.xxxxx"; c7 "5.hm Shakhmaty v SSSR#631;1933;W:Kazantsev=A Liburkin=M NN;(+0040.32d5h1) MC U2;1-0;1933"; c8 "pv b6 Be8 Kc5 Bg6 Kd4 Be8 b7 Bb5 b8=R Bf1 Rb1 Kg2 Ke3 Bc4 Rb4 Be6 Rb6 Bd7 Rh6 Bc8 Rh4 Bd7 Kf4 Kxf2 Rxg4 Bxg4 Kxg4 Kg2 Bg1 1-0"; c9 "HHdbVI"; pv b6 Bf7+ Ke5 Bc4 b7 Bf1 b8=Q Kxh2 Kf5 Bh3 Qe8 Kg2 Qe1 Kh2 Kf4 Kg2 Qe3 Kf1 Kf5 Kg1 Qa7 Kf1 Qd4 Kg1 Qe3 Kf1 Ke5 Kg2 Qd4 Kf1 Kf4 Kg1 Qb6 Kg2 Ke5 Kg1 Kf5 Kf1 Qb2 Kg1 Qd4 Kf1 Qc4+ Kg1 Qf4 Kf1 Ke4 Kg1 Qc1+ Kg2 Qd2 Kf1 Kf4 Kg2 Ke5 Kf1 Kf5;
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Chessqueen
Posts: 5588
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: This position look like winning for White, but can your engine solve it?

Post by Chessqueen »

Dann Corbit wrote: ↑Sat Apr 24, 2021 10:05 pm Yes, my engine can solve it.
8/8/8/1P1K3b/6p1/5pP1/5P1B/7k w - - acd 48; bm b6; ce 734; c0 "5 Honorable Mention, ts23 @2 {ea} {m}; 1933; Kasantjev, A LiburkinM; 1-0"; c3 "b6"; c6 "Arves.xxxxx"; c7 "5.hm Shakhmaty v SSSR#631;1933;W:Kazantsev=A Liburkin=M NN;(+0040.32d5h1) MC U2;1-0;1933"; c8 "pv b6 Be8 Kc5 Bg6 Kd4 Be8 b7 Bb5 b8=R Bf1 Rb1 Kg2 Ke3 Bc4 Rb4 Be6 Rb6 Bd7 Rh6 Bc8 Rh4 Bd7 Kf4 Kxf2 Rxg4 Bxg4 Kxg4 Kg2 Bg1 1-0"; c9 "HHdbVI"; pv b6 Bf7+ Ke5 Bc4 b7 Bf1 b8=Q Kxh2 Kf5 Bh3 Qe8 Kg2 Qe1 Kh2 Kf4 Kg2 Qe3 Kf1 Kf5 Kg1 Qa7 Kf1 Qd4 Kg1 Qe3 Kf1 Ke5 Kg2 Qd4 Kf1 Kf4 Kg1 Qb6 Kg2 Ke5 Kg1 Kf5 Kf1 Qb2 Kg1 Qd4 Kf1 Qc4+ Kg1 Qf4 Kf1 Ke4 Kg1 Qc1+ Kg2 Qd2 Kf1 Kf4 Kg2 Ke5 Kf1 Kf5;
What engine did you used to solve it, I am surprised, because the only way to win for White is to promote the b pawn to a Rook. Your Engines is impressive, what other engines can solve it. Honey can only stop White from winning if the b pawn promote to a Queen, and never considered the b pawn promoting into a Rook :?: :roll:



[d]8/8/8/1P1K3b/6p1/5pP1/5P1B/7k w - - 0 1

Honey v13.1:
6/10 00:00 8k 2,788k +2.41 b6 Kxh2 b7 Kg2 b8Q Kxf2 Qf4
7/13 00:00 20k 5,051k +2.57 b6 Kxh2 Kd4 Kg2 Ke3 Bf7 b7
8/10 00:00 25k 6,365k +2.69 b6 Kxh2 Kd4 Kg2 Ke3 Bg6 b7 Bb1 b8Q
9/15 00:00 80k 11,379k +2.74 b6 Kxh2 Kd4 Kg1 Ke3 Kg2 b7 Bf7 b8Q Be6 Qe8 Bb3
10/22 00:00 124k 12,408k +2.84 b6 Kxh2 Kd4 Kg1 Ke3 Kg2 b7 Bf7 b8Q Be6 Qe5 Bb3 Kf4
11/16 00:00 257k 14,293k +2.81 b6 Kxh2 Kd4 Kg1 Ke3 Be8 b7 Bb5 b8Q Bf1 Qa7 Bh3 Kf4 Kh2 Qd4
12/26 00:00 417k 14,876k +2.75 b6 Kxh2 Kd4 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Kd5 Kg1 Qe3
13/19 00:00 644k 14,971k +2.85 b6 Kxh2 Kd4 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Qc1 Bg2 Ke3 Bh3 Qe1 Kg2 Qa1 Kh2
14/23 00:00 1,391k 15,807k +2.80 b6 Kxh2 Kd4 Kg1 Ke3 Bf7 b7 Bc4 Kf4 Kxf2 b8Q Kg2 Qc8 Bb3 Qxg4 f2
15/26 00:00 2,587k 16,582k +2.51 b6 Kxh2 Kd4 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Qe4 Kh1 Qe1+ Kg2 Kd5 Kh2 Kd6 Kg2 Ke6 Kh2 Kd7 Kg2 Qd2 Kh2 Kc6
16/22 00:00 3,139k 16,697k +2.50 b6 Kxh2 Kd4 Be8 b7 Bb5 Ke3 Bf1 b8Q Bg2 Kf4 Bh3 Qb1 Kg2 Kg5 Kh2 Kh5 Kg2 Qb2 Kg1
17/23 00:00 5,088k 17,075k +2.74 b6 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Qc1+ Kxh2 Kc6 Bg2 Qe1 Bh3 Kb7
18/27 00:00 10,848k 17,841k +2.55 b6 Be8 Kc5 Bg6 b7 Bd3 b8Q Bf1 Qf4 Bh3 Qd2 Kg2 Bg1 Kxg1 Kc6 Kh2 Qe1 Kg2 Kd5 Kh2 Qc1 Kg2 Ke5 Kh2
19/27 00:01 24,625k 18,432k +2.50 b6 Bf7+ Kd4 Be8 b7 Bb5 b8Q Bf1 Ke5 Bh3 Qb1+ Kxh2 Qc1 Kg2 Kf5 Kh2 Qd1 Kg2 Qa1 Kh2 Kf4 Kg2 Ke3
20/29 00:03 71,846k 18,882k +2.33 b6 Be8 b7 Bb5 Kd4 Bf1 b8Q Bh3 Qa7 Kxh2 Qa1 Bg2 Qc1 Bh3 Qb1 Bg2 Ke5 Bh3 Kf4 Kg2 Qb2 Kg1
21/23- 00:04 80,439k 18,922k +2.24 b6 Be8
21/29+ 00:05 105,358k 19,035k +2.33 b6
21/29 00:05 107,895k 19,032k +2.24 b6 Bf7+ Kd4 Be8 b7 Bb5 Ke3 Bf1 Kf4 Bh3 Kf5 Kxh2 b8Q Kg2 Qb1 Kh2 Kf4 Kg2 Ke3 Kh2 Qd1 Bg2 Qc1 Bh3 Ke4 Bg2
22/30+ 00:05 109,117k 19,027k +2.33 b6
22/32+ 00:08 159,888k 19,005k +2.42 b6
21/32 00:10 189,608k 18,957k +2.42 b6
22/32 00:16 314,426k 19,027k +2.45 b6 Be8 b7 Bb5 b8Q Bf1 Qc8 Bh3 Qc1+ Kxh2 Ke5 Kg2 Kf4 Kh2 Qd1 Kg2 Ke3 Kh2 Qb1 Bg2 Kd4 Bh3
23/10- 00:17 323,482k 19,021k +2.36 b6 Be8
23/25- 00:17 332,361k 19,015k +2.26 b6 Be8
23/25+ 00:18 350,308k 19,007k +2.36 b6
23/30+ 00:18 357,298k 19,007k +2.54 b6
23/30- 00:19 362,276k 19,015k +2.13 b6 Be8
22/30 00:20 380,473k 19,022k +2.13 b6 Be8
23/33+ 00:25 492,182k 19,053k +2.45 b6
22/33 00:30 572,757k 19,091k +2.45 b6
23/35 00:33 633,236k 19,136k +2.30 b6 Be8 b7 Bb5 Ke6 Bf1 Kf5 Bh3 Bg1 Kxg1 Ke4 Kh2 Kd3 Kh1 b8Q Kg1 Qb1+ Kh2 Kd4 Bg2 Ke4 Bh3 Kf5 Kg2 Ke5 Kh2 Qe1 Kg2
24/32+ 00:33 639,242k 19,135k +2.39 b6
24/32+ 00:33 639,315k 19,135k +2.48 b6
24/32- 00:39 750,069k 19,179k +2.21 b6 Bf7+
23/32 00:40 767,989k 19,199k +2.21 b6 Bf7+
24/32+ 00:40 785,840k 19,213k +2.41 b6
24/34 00:48 929,500k 19,266k +2.13 b6 Bf7+ Kd4 Be8 b7 Bb5 b8Q Bf1 Qc8 Bh3 Qc2 Kg2 Qc3 Kxh2 Qe1 Bg2 Qb1 Bh3 Ke4 Kg2 Qc1 Kh2 Qd1 Kg2 Kf5 Kh2 Kf4
25/26+ 00:48 937,427k 19,266k +2.22 b6
25/31+ 00:49 950,949k 19,266k +2.31 b6
25/31+ 00:49 951,597k 19,264k +2.43 b6
24/31 00:50 963,118k 19,262k +2.43 b6
25/34 00:50 974,421k 19,268k +2.13 b6 Be8 Kc5 Bg6 Kd4 Be8 b7 Bb5 Ke5 Bf1 Kf4 Bh3 Bg1 Kxg1 Ke4 Kh2 b8Q Kg1 Qd6 Kh2 Qd1 Kg2 Kf4 Kh2 Qe1 Kg2 Qc1 Kh2 Kf5
26/33+ 00:50 980,735k 19,265k +2.22 b6
26/33+ 00:51 988,811k 19,268k +2.31 b6
26/33+ 00:51 989,479k 19,267k +2.43 b6
26/33 00:53 1,027,129k 19,273k +2.46 b6 Be8 b7 Bb5 b8Q Bf1 Qh8 Bh3 Qa1+ Kxh2 Ke4 Kg2 Kf5 Kh2 Kg5 Kg2 Qe1 Kh2 Qb1 Kg2 Qa1 Kh2 Kf5 Kg2 Qc1
26/33 01:00 1,158,357k 19,305k +2.46 b6 Be8 b7 Bb5 b8Q Bf1 Qh8 Bh3 Qa1+ Kxh2 Ke4 Kg2 Kf5 Kh2 Kg5 Kg2 Qe1 Kh2 Qb1 Kg2 Qa1 Kh2 Kf5 Kg2 Qc1
27/21- 01:02 1,211,512k 19,316k +2.37 b6 Be8
26/21 01:10 1,354,105k 19,344k +2.37 b6 Be8
27/21- 01:15 1,462,974k 19,352k +2.27 b6 Be8
26/21 01:20 1,548,678k 19,358k +2.27 b6 Be8
26/21 01:30 1,743,020k 19,366k +2.27 b6 Be8
27/31- 01:32 1,800,681k 19,379k +2.14 b6 Be8
26/31 01:40 1,935,688k 19,356k +2.14 b6 Be8
27/34+ 01:40 1,942,567k 19,354k +2.25 b6
27/35- 01:48 2,107,199k 19,371k +1.96 b6 Be8
26/35 01:50 2,130,764k 19,370k +1.96 b6 Be8
26/35 02:00 2,321,230k 19,343k +1.96 b6 Be8
27/35+ 02:24 2,803,446k 19,334k +2.23 b6
27/36 02:46 3,215,992k 19,340k +2.19 b6 Be8 Kc5 Bg6 b7 Bd3 Kd5 Kxh2 Kc5 Bf1 Kd4 Kg2 Ke4 Kh2 b8Q Bh3 Qb1 Bg2 Qe1 Bh3 Qa1 Kg2 Kf4 Kh2 Kf5 Kg2 Qc1 Kh2
28/33+ 02:53 3,351,991k 19,349k +2.28 b6
27/33 03:00 3,483,457k 19,352k +2.28 b6
28/33- 03:01 3,513,863k 19,349k +2.10 b6 Be8
27/33 04:00 4,630,771k 19,295k +2.10 b6 Be8
28/36+ 04:00 4,646,360k 19,293k +2.24 b6
28/36+ 04:05 4,728,033k 19,291k +2.41 b6
28/36+ 04:14 4,909,958k 19,276k +2.64 b6
28/36- 04:17 4,965,959k 19,273k +1.98 b6 Bf7+
27/36 05:00 5,775,745k 19,252k +1.98 b6 Bf7+
27/36 06:00 6,915,038k 19,208k +1.98 b6 Bf7+
27/36 07:00 8,057,632k 19,185k +1.98 b6 Bf7+
28/43+ 07:16 8,366,401k 19,177k +2.46 b6
27/43 08:00 9,190,010k 19,146k +2.46 b6
28/45 08:18 9,544,001k 19,141k +1.94 b6 Be8 Kc5 Bg6 Kd4 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Qf6 Kg2 Kd5 Kxh2 Ke6 Bg2 Qg6 Bh3 Ke5 Kg2 Qg7 Kh2 Qd7 Kg1 Kf5 Kh1 Qd2 Kg2 Qc1 Kh2 Ke4 Kg2 Ke3
29/33+ 08:37 9,906,964k 19,132k +2.03 b6
29/33+ 08:38 9,917,325k 19,131k +2.11 b6
29/33+ 08:40 9,952,782k 19,127k +2.23 b6
28/33 09:00 10,321,662k 19,114k +2.23 b6
29/39 09:22 10,744,171k 19,113k +2.10 b6 Bf7+ Kd4 Be8 Kc5 Bg6 b7 Bd3 b8Q Bf1 Qh8 Bh3 Kd4 Kxh2 Qh6 Kg1 Qa6 Kh2 Ke5 Kh1 Qa1+ Kh2 Kf4 Kg2 Kg5 Kh2 Qe1 Kg2 Qd1 Kh2 Qa1 Kg2 Kf4
29/39 10:00 11,460,414k 19,101k +2.10 b6 Bf7+ Kd4 Be8 Kc5 Bg6 b7 Bd3 b8Q Bf1 Qh8 Bh3 Kd4 Kxh2 Qh6 Kg1 Qa6 Kh2 Ke5 Kh1 Qa1+ Kh2 Kf4 Kg2 Kg5 Kh2 Qe1 Kg2 Qd1 Kh2 Qa1 Kg2 Kf4
30/37+ 10:47 12,383,969k 19,115k +2.19 b6
30/37+ 10:53 12,498,914k 19,115k +2.28 b6
30/37 13:45 15,790,098k 19,135k +2.28 b6 Bf7+ Kd4 Be8 Kc5 Bg6 b7 Bd3 b8Q Bf1 Qb4 Bh3 Kd6 Kxh2 Ke5 Kh1 Qb1+ Kh2 Kf4 Kg2 Qd1 Kh2 Kf5 Kg2 Qa1 Kh2 Qc1 Kg2 Qd1 Kh2 Qa1 Kg2 Ke5 Kh2
31/14- 14:40 16,842,400k 19,136k +2.19 b6 Bf7+
31/14+ 14:49 17,009,824k 19,132k +2.28 b6
31/14- 14:58 17,185,673k 19,135k +2.10 b6 Bf7+
30/14 15:00 17,222,682k 19,136k +2.10 b6 Bf7+
31/27+ 18:32 21,254,724k 19,097k +2.25 b6
31/27- 18:58 21,748,705k 19,100k +1.92 b6 Bf7+
30/27 20:00 22,896,679k 19,081k +1.92 b6 Bf7+
31/41+ 20:07 23,037,422k 19,080k +2.20 b6
31/42 21:09 24,219,949k 19,083k +1.91 b6 Bf7+ Kd4 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Bg1 Kxg1 Qc7 Kg2 Qc1 Kh2 Ke5 Bg2 Kf4 Bh3 Kf5 Kg2 Qd1 Kh2 Ke5 Kg2 Kf4 Kh2 Qc1 Kg2 Qb1 Kh2
32/17- 21:53 25,076,483k 19,084k +1.83 b6 Bf7+
32/35+ 22:45 26,042,394k 19,079k +1.91 b6
32/35+ 22:45 26,042,685k 19,079k +2.03 b6
32/35+ 22:45 26,046,534k 19,078k +2.19 b6
32/35+ 22:49 26,126,556k 19,077k +2.42 b6
31/35 25:00 28,515,741k 19,010k +2.42 b6
32/43- 25:08 28,665,364k 19,005k +1.74 b6 Bf7+
32/52+ 27:11 30,957,003k 18,969k +2.22 b6
31/52 30:00 33,983,942k 18,880k +2.22 b6
32/52 32:25 36,684,734k 18,859k +1.57 b6 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Ke6 Kg2 Qd2 Kh1 Qc1+ Kxh2 Kd6 Bg2 Qd1 Bh3 Qa1 Bg2 Ke6 Bh3 Ke5 Bg2 Qd1 Bh3 Qe1 Bg2 Kf5 Bh3 Kg5 Kg2 Qa1 Kh2 Kf4 Kg2
33/38+ 32:26 36,703,293k 18,859k +1.65 b6
33/38+ 32:26 36,703,781k 18,859k +1.73 b6
33/38+ 32:26 36,712,443k 18,859k +1.84 b6
33/38+ 32:26 36,714,340k 18,859k +2.00 b6
33/38+ 32:26 36,715,369k 18,859k +2.21 b6
33/38+ 32:27 36,735,148k 18,859k +2.49 b6
33/41 33:06 37,455,831k 18,853k +1.57 b6 Be8 b7 Bb5 b8Q Bf1 Qc8 Bh3 Qc1+ Kxh2 Qe1 Kg2 Ke4 Kh2 Kf5 Kg2 Qa1 Kh2 Qc1 Kg2 Qe1 Kh2 Qa1 Kg2 Kf4 Kh2 Qb1 Kg2 Ke3 Kh2
34/33+ 33:22 37,750,485k 18,853k +1.65 b6
34/33+ 33:22 37,751,273k 18,853k +1.73 b6
34/37+ 33:25 37,805,419k 18,854k +1.84 b6
34/43+ 33:36 38,014,204k 18,854k +2.00 b6
34/43+ 33:51 38,303,936k 18,851k +2.21 b6
33/43 35:00 39,576,757k 18,846k +2.21 b6
34/43 36:24 41,180,652k 18,850k +2.03 b6 Be8 b7 Bb5 b8Q Bf1 Qf4 Bh3 Qd6 Kg2 Qc7 Kxh2 Ke4 Kh1 Qe7 Kg1 Qb4 Kh2 Qe1 Bf1 Kf4 Bh3 Qa1 Kg2 Kf5 Kh2 Qb1 Kg2 Kg5 Kh2 Kh4 Kg2
35/31- 39:22 44,483,554k 18,829k +1.94 b6 Be8
34/31 40:00 45,171,575k 18,821k +1.94 b6 Be8
35/35+ 43:01 48,592,736k 18,821k +2.03 b6
35/42+ 43:17 48,879,722k 18,819k +2.15 b6
35/47+ 43:49 49,468,481k 18,815k +2.33 b6
34/47 45:00 50,754,497k 18,798k +2.33 b6
35/47+ 45:09 50,919,076k 18,795k +2.56 b6
35/47- 47:00 52,954,466k 18,777k +1.85 b6 Be8
34/47 50:00 56,257,173k 18,752k +1.85 b6 Be8
34/47 55:00 61,840,661k 18,740k +1.85 b6 Be8
34/47 1:00:00 67,594,339k 18,776k +1.85 b6 Be8
34/47 1:05:00 73,191,654k 18,767k +1.85 b6 Be8
35/50 1:09:51 78,616,058k 18,754k +1.48 b6 Be8 Kc5 Bg6 b7 Bd3 b8Q Bf1 Qb4 Bh3 Kd4 Kxh2 Qb5 Kg2 Ke4 Kg1 Qg5 Kh2 Qd8 Kh1 Kf4 Kg2 Qd1 Kh2 Qe1 Kg2 Qa1 Kh2 Kg5 Kg2 Qc1 Kh2 Kf5 Kg2 Qf4 Kg1 Ke4
35/50 1:10:00 78,759,042k 18,752k +1.48 b6 Be8 Kc5 Bg6 b7 Bd3 b8Q Bf1 Qb4 Bh3 Kd4 Kxh2 Qb5 Kg2 Ke4 Kg1 Qg5 Kh2 Qd8 Kh1 Kf4 Kg2 Qd1 Kh2 Qe1 Kg2 Qa1 Kh2 Kg5 Kg2 Qc1 Kh2 Kf5 Kg2 Qf4 Kg1 Ke4
Who is 17 years old GM Gukesh 2nd at the Candidate in Toronto?
https://indianexpress.com/article/sport ... t-9281394/
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Chessqueen
Posts: 5588
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: This position look like winning for White, but can your engine solve it?

Post by Chessqueen »

If I manually under promote the b pawn into a Rook, then Honey and Stockfish 13 NNUE immediately execute the following moves to win with White :roll:
Who is 17 years old GM Gukesh 2nd at the Candidate in Toronto?
https://indianexpress.com/article/sport ... t-9281394/
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Alayan
Posts: 550
Joined: Tue Nov 19, 2019 8:48 pm
Full name: Alayan Feh

Re: This position look like winning for White, but can your engine solve it?

Post by Alayan »

Getting this sort of made-up positions right quickly would require being worse in a lot of much more relevant positions. Not worth the trade-off.
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peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: This position look like winning for White, but can your engine solve it?

Post by peter »

Alayan wrote: ↑Sun Apr 25, 2021 12:26 am Getting this sort of made-up positions right quickly would require being worse in a lot of much more relevant positions. Not worth the trade-off.
At my trials with BlackDiamond on a weak laptop outputs show the underpromotion always at once. Don't know, what Chessqueen did, maybe he had much Tactical Value in setting or Deep Pro Analysis checked, the high time to depth would be to be explained so too.
Here's one of three trials with 4x2Ghz and 2G hash, 5men Syzygys.

8/8/8/1P1K3b/6p1/5pP1/5P1B/7k w - - 0 1

Analysis by Black Diamond v13.1a:

Code: Select all

1.b6 Kxh2 2.b7 Kg2 3.b8Q Kxf2 4.Qe5 Bf7+ 5.Kc6 Kg2 6.Kd7 f2 7.Qe2 Bb3 8.Kc6 Kxg3 
  +- (2.09)  Depth: 10/16   00:00:00
1.b6 Kxh2 2.b7 Kg2 3.b8Q Kxf2 4.Ke4 Kg2 5.Qb2+ Kxg3 6.Ke3 Kh4 7.Qe5 f2 8.Qf6+ Kh3 
  +- (2.14)  Depth: 11/20   00:00:00
1.b6 Kxh2 2.b7 Kg2 3.b8Q Kxf2 4.Kd4 Kg2 5.Qb2+ Kg1 6.Ke3 Bf7 7.Qb1+ Kg2 8.Qf5 Be8 9.Qxg4 
  +- (2.37)  Depth: 12/22   00:00:00
1.b6 Bf7+ 2.Kc5 Kxh2 3.b7 Kg2 4.b8Q Kxf2 5.Kd4 Kg1 6.Qb1+ Kg2 7.Qb2+ f2 8.Ke3 Bd5 9.Qxf2+ Kh3 10.Qf5 Bf3 11.Qe5 
  +- (2.46)  Depth: 13/25   00:00:00  435kN, tb=3865
1.b6 Bf7+ 2.Kd4 Be8 3.b7 Bb5 4.b8R Bf1 5.Rb1 Kg2 6.Re1 Ba6 7.Re6 Bf1 8.Rg6 Kxh2 9.Rxg4 Kg2 10.Rg7 Kxf2 
  +/= (0.51)  Depth: 14/30   00:00:01  1430kN, tb=6675
1.b6 Bf7+ 2.Kd4 Be8 3.b7 Bb5 4.b8R Bd7 5.Rh8 Kg2 6.Ke3 Be6 7.Kf4 Bd7 8.Rh4 Kxf2 9.Rh7 Bc8 10.Rc7 Be6 11.Rc2+ Kf1 12.Rd2 
  +/- (1.17)  Depth: 15/30   00:00:01  1538kN, tb=7131
1.b6 Bf7+ 2.Kd4 Be8 3.b7 Bb5 4.b8R Bf1 5.Rb1 Kg2 6.Ke3 Bc4 7.Rb4 Be6 8.Rb6 Bf7 9.Rh6 Be8 10.Rh8 Bd7 11.Rh4 Bf5 
  +/- (1.23)  Depth: 16/30   00:00:01  1744kN, tb=8670
1.b6 Bf7+ 2.Kd4 Be8 3.b7 Bb5 4.b8R Bc6 5.Rg8 Bd7 6.Rh8 Kg2 7.Ke3 Be6 8.Rh4 Bd7 9.Rh6 Bf5 10.Kf4 Bb1 11.Rh4 Kxf2 12.Rxg4 
  +/- (1.43)  Depth: 17/34   00:00:01  1811kN, tb=8979
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bd7 10.Rh6 Bc8 11.Rh4 Be6 12.Kf4 Kxf2 13.Rxg4 Kg2 14.Bg1 
  +/- (1.59)  Depth: 18/34   00:00:01  2364kN, tb=10673
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Be6 12.Kf4 Kxf2 13.Rxg4 Bd5 14.Rg5 Be6 15.Rg6 Bh3 16.Bg1+ Ke2 
  +/- (1.60)  Depth: 19/38   00:00:01  2626kN, tb=13304
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Be6 12.Kf4 Kxf2 13.Rxg4 Bd5 14.Rg5 Bc6 15.Rg6 Bb5 16.Rb6 Be2 17.g4 Kg2 
  +- (1.65)  Depth: 20/38   00:00:01  2725kN, tb=14201
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Kxf2 13.Rxg4 Kg2 14.Bg1 Be8 15.Bd4 Ba4 16.Be3 Bb5 17.Rg7 Bd3 18.Rg5 
  +- (1.75)  Depth: 21/39   00:00:01  2991kN, tb=17006
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Kxf2 13.Rxg4 Kg2 14.Bg1 Bc6 15.Be3 Be8 16.Rh4 Ba4 17.Rh6 
  +- (1.82)  Depth: 22/43   00:00:01  3397kN, tb=21928
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Ke1 12.Kf4 Kd2 13.Rxg4 Kc3 14.Rg7 Bh3 15.Rg6 Bf1 16.Rh6 Kb2 17.Rb6+ Ka3 18.Kxf3 
  +- (2.37)  Depth: 23/46   00:00:02  5891kN, tb=44452
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Be6 13.Kf4 Bc8 14.Rxg4 Ke2 15.Rg8 Bh3 16.Rb8 Kd2 17.Rb6 Bc8 18.Rh6 Ke1 19.Rg6 
  +- (2.49)  Depth: 24/46   00:00:03  7759kN, tb=59942
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Be6 13.Kf4 Bc8 14.Rxg4 Ke2 15.Rg8 Bh3 16.Rb8 Kd2 17.Rb6 Bc8 18.Rh6 Ke1 19.Rg6 
  +- (2.71 ++)  Depth: 25/46   00:00:03  9224kN, tb=75338
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Be6 13.Kf4 Bc8 14.Rxg4 Ke2 15.Rg8 Bh3 16.Rb8 Kd2 17.Rb6 Bc8 18.Rh6 Ke1 19.Rg6 
  +- (2.77 ++)  Depth: 25/46   00:00:03  9919kN, tb=80792
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Be6 13.Kf4 Bc8 14.Rxg4 Ke2 15.Rg8 Bh3 16.Rb8 Kd2 17.Rb6 Bc8 18.Rh6 Ke1 19.Rg6 
  +- (2.85 ++)  Depth: 25/46   00:00:04  10787kN, tb=88981
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Be6 13.Kf4 Bc8 14.Rxg4 Ke2 15.Rg8 Bh3 16.Rb8 Kd2 17.Rb6 Bc8 18.Rh6 Ke1 19.Rg6 
  +- (3.29 ++)  Depth: 25/46   00:00:04  11854kN, tb=99880
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Be6 13.Kf4 Bc8 14.Rxg4 Ke2 15.Rg8 Bh3 16.Rb8 Kd2 17.Rb6 Bc8 18.Rh6 Ke1 19.Rg6 
  +- (3.58 ++)  Depth: 25/47   00:00:05  13886kN, tb=118188
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Ke1 12.Kf4 Be6 13.Rxg4 Ke2 14.Rg6 Bf7 15.Rb6 Kd3 16.Rb2 Be6 17.Bg1 Bh3 18.Rb7 Kd2 19.Rb4 Bf1 20.Rd4+ Ke2 21.Rd6 Bg2 
  +- (3.43)  Depth: 25/59   00:00:05  15551kN, tb=124462
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Ke1 12.Kf4 Be6 13.Rxg4 Ke2 14.Rg6 Bf7 15.Rb6 Kd3 16.Rb2 Be6 17.Bg1 Bh3 18.Rb7 Kd2 19.Rb4 Bf1 20.Rd4+ Ke2 21.Rd6 Bg2 
  +- (3.41 --)  Depth: 26/59   00:00:05  16522kN, tb=127889
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Ke1 12.Kf4 Be6 13.Rxg4 Ke2 14.Rg6 Bf7 15.Rb6 Kd3 16.Rb2 Be6 17.Bg1 Bh3 18.Rb7 Kd2 19.Rb4 Bf1 20.Rd4+ Ke2 21.Rd6 Bg2 
  +- (3.38 --)  Depth: 26/59   00:00:06  17317kN, tb=131009
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Ke1 12.Kf4 Be6 13.Rxg4 Ke2 14.Rg6 Bf7 15.Rb6 Kd3 16.Rb2 Be6 17.Bg1 Bh3 18.Rb7 Kd2 19.Rb4 Bf1 20.Rd4+ Ke2 21.Rd6 Bg2 
  +- (3.41 ++)  Depth: 26/59   00:00:06  18072kN, tb=134222
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Kf4 Be6 14.Rxg4 Kd2 15.Rg6 Bf7 16.Rd6+ Ke2 17.Rc6 Bb3 18.Rb6 Bf7 19.Rb2+ Kd3 20.Bg1 Bc4 21.Rb4 Bg8 22.Rb7 
  +- (3.46)  Depth: 26/59   00:00:06  18319kN, tb=135756
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Kf4 Be6 14.Rxg4 Kd2 15.Rg6 Bf7 16.Rd6+ Ke2 17.Rc6 Bb3 18.Rb6 Bf7 19.Rb2+ Kd3 20.Bg1 Bc4 21.Rb4 Bg8 22.Rb7 
  +- (3.46 --)  Depth: 27/59   00:00:06  18504kN, tb=137091
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Kf4 Be6 14.Rxg4 Kd2 15.Rg6 Bf7 16.Rd6+ Ke2 17.Rc6 Bb3 18.Rb6 Bf7 19.Rb2+ Kd3 20.Bg1 Bc4 21.Rb4 Bg8 22.Rb7 
  +- (3.43 --)  Depth: 27/59   00:00:06  18516kN, tb=137091
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Kf4 Be6 14.Rxg4 Kd2 15.Rg6 Bf7 16.Rd6+ Ke2 17.Rc6 Bb3 18.Rb6 Bf7 19.Rb2+ Kd3 20.Bg1 Bc4 21.Rb4 Bg8 22.Rb7 
  +- (3.46 ++)  Depth: 27/59   00:00:06  18587kN, tb=137194
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.49)  Depth: 27/59   00:00:06  18690kN, tb=137425
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.46 --)  Depth: 28/59   00:00:07  23239kN, tb=140705
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.49 ++)  Depth: 28/59   00:00:07  23532kN, tb=142297
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.43 --)  Depth: 28/59   00:00:08  26058kN, tb=146359
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.48 ++)  Depth: 28/59   00:00:08  26072kN, tb=146359
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.48)  Depth: 28/59   00:00:10  36738kN, tb=150986
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.37 --)  Depth: 28/59   00:00:10  37706kN, tb=151493
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.47 ++)  Depth: 28/59   00:00:10  37748kN, tb=151493
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.47)  Depth: 28/59   00:00:20  77338kN, tb=158892
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.27 --)  Depth: 28/59   00:00:20  78709kN, tb=158960
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rc6 Bd7 11.Rh6 Kf1 12.Rh4 Ke1 13.Rh7 Bf5 14.Rf7 Bg6 15.Ra7 Kf1 16.Rg7 Bf5 17.Kf4 Bd3 18.Rxg4 Ke2 19.Bg1 Bc4 20.Rg7 Ba2 21.Bh2 Kd3 22.Rg6 
  +- (3.44 ++)  Depth: 28/59   00:00:20  78962kN, tb=159023
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.37)  Depth: 28/59   00:00:20  79105kN, tb=159023
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.26)  Depth: 28/59   00:00:30  119MN, tb=162109
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.24 --)  Depth: 29/59   00:00:36  142MN, tb=162657
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.21 --)  Depth: 29/59   00:00:39  156MN, tb=166892
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.21)  Depth: 29/59   00:00:40  159MN, tb=167031
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.17 --)  Depth: 29/59   00:00:44  176MN, tb=167402
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.11 --)  Depth: 29/59   00:00:50  198MN, tb=168436
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.11)  Depth: 29/59   00:00:50  198MN, tb=168437
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.11)  Depth: 29/59   00:01:00  239MN, tb=171513
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.11)  Depth: 29/59   00:01:10  280MN, tb=171871
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.11)  Depth: 29/59   00:01:20  320MN, tb=171982
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03 --)  Depth: 29/59   00:01:22  328MN, tb=172041
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:01:30  360MN, tb=173084
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:01:40  400MN, tb=173117
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:01:50  437MN, tb=173582
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:02:00  476MN, tb=173854
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:03:00  711MN, tb=176824
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:04:00  944MN, tb=189218
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:05:00  1187MN, tb=189758
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:06:00  1427MN, tb=190232
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:07:00  1659MN, tb=195780
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.03)  Depth: 29/59   00:08:00  1905MN, tb=200028
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Kf1 11.Rh4 Be6 12.Kf4 Ke1 13.Rh6 Bc4 14.Ke3 Bf7 15.Rh7 Bg6 16.Re7 Kf1 17.Rg7 Bf5 18.Kf4 Bd3 19.Rxg4 Ke2 20.Rg7 Bc4 21.Rc7 Bg8 22.Rc2+ Kd3 23.Rc6 Bf7 24.Rf6 
  +- (3.46 ++)  Depth: 29/59   00:08:18  1972MN, tb=263219
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bf5 11.Kf4 Bd7 12.Rh4 Kf1 13.Rxg4 Ke2 14.Rg6 Bb5 15.Rg7 Kd3 16.Re7 Bc6 17.Re3+ Kd2 18.Re6 Bb5 19.Rb6 Bc4 20.Rd6+ Ke2 21.g4 Ba2 22.Rd7 
  +- (3.81)  Depth: 29/70   00:08:19  1978MN, tb=287601
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bf5 11.Kf4 Bd7 12.Rh4 Kf1 13.Rxg4 Ke2 14.Rg6 Bb5 15.Rg7 Kd3 16.Re7 Bc6 17.Re3+ Kd2 18.Re6 Bb5 19.Rb6 Bc4 20.Rd6+ Ke2 21.g4 Bb5 22.Rb6 Bc4 23.Rb7 Bg8 24.Rd7 Ba2 25.Re7+ Kd3 
  +- (3.81)  Depth: 30/70   00:08:19  1979MN, tb=287832
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bf5 11.Kf4 Bd7 12.Rh4 Kf1 13.Rxg4 Ke2 14.Rg6 Bb5 15.Rg7 Kd3 16.Re7 Bc6 17.Re3+ Kd2 18.Re6 Bb5 19.Rb6 Bc4 20.Rd6+ Ke2 21.g4 Bb5 22.Rb6 Bc4 23.Rb7 Bg8 24.Rd7 Ba2 25.Re7+ Kd3 
  +- (3.84 ++)  Depth: 31/70   00:08:22  1987MN, tb=313826
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bf5 11.Kf4 Bd7 12.Rh4 Kf1 13.Rxg4 Ke2 14.Rg6 Bb5 15.Rg7 Kd3 16.Re7 Bc6 17.Re3+ Kd2 18.Re6 Bb5 19.Rb6 Bc4 20.Rd6+ Ke2 21.g4 Bb5 22.Rb6 Bc4 23.Rb7 Bg8 24.Rd7 Ba2 25.Re7+ Kd3 
  +- (3.87 ++)  Depth: 31/70   00:08:23  1994MN, tb=325755
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bf5 11.Kf4 Bd7 12.Rh4 Kf1 13.Rxg4 Ke2 14.Rg6 Bb5 15.Rg7 Kd3 16.Re7 Bc6 17.Re3+ Kd2 18.Re6 Bb5 19.Rb6 Bc4 20.Rd6+ Ke2 21.g4 Bb5 22.Rb6 Bc4 23.Rb7 Bg8 24.Rd7 Ba2 25.Re7+ Kd3 
  +- (3.91 ++)  Depth: 31/70   00:08:25  2002MN, tb=334421
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bf5 11.Kf4 Bd7 12.Rh4 Kf1 13.Rxg4 Ke2 14.Rg6 Bb5 15.Rg7 Kd3 16.Re7 Bc6 17.Re3+ Kd2 18.Re6 Bb5 19.Rb6 Bc4 20.Rd6+ Ke2 21.g4 Bb5 22.Rb6 Bc4 23.Rb7 Bg8 24.Rd7 Ba2 25.Re7+ Kd3 
  +- (3.79 --)  Depth: 31/70   00:08:31  2019MN, tb=340582
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bf5 11.Kf4 Bd7 12.Rh4 Kf1 13.Rxg4 Ke2 14.Rg6 Bb5 15.Rg7 Kd3 16.Re7 Bc6 17.Re3+ Kd2 18.Re6 Bb5 19.Rb6 Bc4 20.Rd6+ Ke2 21.g4 Bb5 22.Rb6 Bc4 23.Rb7 Bg8 24.Rd7 Ba2 25.Re7+ Kd3 
  +- (3.88 ++)  Depth: 31/70   00:08:32  2022MN, tb=343103
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Ke2 13.Rxg4 Kd3 14.Rg6 Kc4 15.Ke3 Kc3 16.Ra6 Kc2 17.Rd6 Ba4 18.Rd8 Bb3 19.Rc8+ Kd1 20.Rb8 Ba2 21.Rb4 Bg8 22.Rb6 Kc1 23.Rc6+ Kb2 
  +- (3.88)  Depth: 31/70   00:08:33  2025MN, tb=343508
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Ke2 13.Rxg4 Kd3 14.Rg6 Kc4 15.Ke3 Kc3 16.Ra6 Kc2 17.Rd6 Ba4 18.Rd8 Bb3 19.Rc8+ Kd1 20.Rb8 Ba2 21.Rb4 Bg8 22.Rb6 Kc1 23.Rc6+ Kb2 
  +- (3.91 --)  Depth: 32/70   00:08:36  2039MN, tb=345132
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Ke2 13.Rxg4 Kd3 14.Rg6 Kc4 15.Ke3 Kc3 16.Ra6 Kc2 17.Rd6 Ba4 18.Rd8 Bb3 19.Rc8+ Kd1 20.Rb8 Ba2 21.Rb4 Bg8 22.Rb6 Kc1 23.Rc6+ Kb2 
  +- (3.89 --)  Depth: 32/70   00:08:38  2046MN, tb=345348
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Ke2 13.Rxg4 Kd3 14.Rg6 Kc4 15.Ke3 Kc3 16.Ra6 Kc2 17.Rd6 Ba4 18.Rd8 Bb3 19.Rc8+ Kd1 20.Rb8 Ba2 21.Rb4 Bg8 22.Rb6 Kc1 23.Rc6+ Kb2 
  +- (3.85 --)  Depth: 32/70   00:08:38  2050MN, tb=345413
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Ke2 13.Rxg4 Kd3 14.Rg6 Kc4 15.Ke3 Kc3 16.Ra6 Kc2 17.Rd6 Ba4 18.Rd8 Bb3 19.Rc8+ Kd1 20.Rb8 Ba2 21.Rb4 Bg8 22.Rb6 Kc1 23.Rc6+ Kb2 
  +- (3.88 ++)  Depth: 32/70   00:08:39  2052MN, tb=348909
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Ke2 13.Rxg4 Kd3 14.Rg6 Kc4 15.Ke3 Kc3 16.Ra6 Kc2 17.Rd6 Ba4 18.Rd8 Bb3 19.Rc8+ Kd1 20.Rb8 Ba2 21.Rb4 Bg8 22.Rb6 Kc1 23.Rc6+ Kb2 
  +- (3.96 ++)  Depth: 32/70   00:08:40  2055MN, tb=351161
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Bc4 8.Rb4 Be6 9.Rb6 Bc8 10.Rh6 Bd7 11.Rh4 Kf1 12.Kf4 Ke2 13.Rxg4 Kd3 14.Rg6 Kc4 15.Ke3 Kc3 16.Ra6 Kc2 17.Rd6 Ba4 18.Rd8 Bb3 19.Rc8+ Kd1 20.Rb8 Ba2 21.Rb4 Bg8 22.Rb6 Kc1 23.Rc6+ Kb2 
  +- (4.07 ++)  Depth: 32/70   00:08:44  2072MN, tb=412311
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Ra6 Bg8 15.Rd6+ Ke2 16.Rd7 Bc4 17.Rc7 Bd5 18.Re7+ Kf1 19.Ke3 Kg2 20.g4 Kh3 21.Rd7 Be4 22.Kxe4 
  +- (4.01)  Depth: 32/70   00:08:46  2077MN, tb=426740
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Ra6 Bg8 15.Rd6+ Ke2 16.Rd7 Bc4 17.Rc7 Bd5 18.Re7+ Kf1 19.Ke3 Kg2 20.g4 Kh3 21.Rd7 Be4 22.Kxe4 
  +- (4.11 ++)  Depth: 33/70   00:08:46  2079MN, tb=432723
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Ra6 Bg8 15.Rd6+ Ke2 16.Rd7 Bc4 17.Rc7 Bd5 18.Re7+ Kf1 19.Ke3 Kg2 20.g4 Kh3 21.Rd7 Be4 22.Kxe4 
  +- (4.14 ++)  Depth: 33/70   00:08:50  2093MN, tb=464381
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Ra6 Bg8 15.Rd6+ Ke2 16.Rd7 Bc4 17.Rc7 Bd5 18.Re7+ Kf1 19.Ke3 Kg2 20.g4 Kh3 21.Rd7 Be4 22.Kxe4 
  +- (4.18 ++)  Depth: 33/70   00:08:53  2105MN, tb=510191
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Ra6 Bg8 15.Rd6+ Ke2 16.Rd7 Bc4 17.Rc7 Bd5 18.Re7+ Kf1 19.Ke3 Kg2 20.g4 Kh3 21.Rd7 Be4 22.Kxe4 
  +- (4.24 ++)  Depth: 33/70   00:08:56  2117MN, tb=550829
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Ra6 Bg8 15.Rd6+ Ke2 16.Rd7 Bc4 17.Rc7 Bd5 18.Re7+ Kf1 19.Ke3 Kg2 20.g4 Kh3 21.Rd7 Be4 22.Kxe4 
  +- (4.24)  Depth: 33/70   00:09:00  2130MN, tb=596768
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Ra6 Bg8 15.Rd6+ Ke2 16.Rd7 Bc4 17.Rc7 Bd5 18.Re7+ Kf1 19.Ke3 Kg2 20.g4 Kh3 21.Rd7 Be4 22.Kxe4 
  +- (4.32 ++)  Depth: 33/70   00:09:01  2132MN, tb=600748
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Rd6+ Ke2 15.Rd7 Bc4 16.g4 Bb5 17.Re7+ Kd3 18.Re6 Kd4 19.Re3 Bf1 20.Kg3 Kd5 21.Kh4 Ba6 22.Re7 Kd4 23.Re6 Bf1 24.Rd6+ Kc4 25.Bf4 Kb3 26.Be3 
  +- (4.28)  Depth: 33/70   00:09:02  2137MN, tb=603908
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Rd6+ Ke2 15.Rd7 Bc4 16.g4 Bb5 17.Re7+ Kd3 18.Re6 Kd4 19.Re3 Bf1 20.Kg3 Kd5 21.Kh4 Ba6 22.Re7 Kd4 23.Re6 Bf1 24.Rd6+ Kc4 25.Bf4 Kb3 26.Be3 
  +- (4.45 --)  Depth: 34/70   00:09:09  2157MN, tb=613226
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Rd6+ Ke2 15.Rd7 Bc4 16.g4 Bb5 17.Re7+ Kd3 18.Re6 Kd4 19.Re3 Bf1 20.Kg3 Kd5 21.Kh4 Ba6 22.Re7 Kd4 23.Re6 Bf1 24.Rd6+ Kc4 25.Bf4 Kb3 26.Be3 
  +- (4.43 --)  Depth: 34/70   00:09:10  2159MN, tb=613246
1.b6 Be8 2.Kc5 Bg6 3.Kd4 Be8 4.b7 Bb5 5.b8R Bf1 6.Rb1 Kg2 7.Ke3 Ba6 8.Rb6 Bc8 9.Rh6 Kf1 10.Rh4 Be6 11.Kf4 Ba2 12.Rxg4 Ke2 13.Rg6 Kd2 14.Rd6+ Ke2 15.Rd7 Bc4 16.g4 Bb5 17.Re7+ Kd3 18.Re6 Kd4 19.Re3 Bf1 20.Kg3 Kd5 21.Kh4 Ba6 22.Re7 Kd4 23.Re6 Bf1 24.Rd6+ Kc4 25.Bf4 Kb3 26.Be3 
  +- (4.39 --)  Depth: 34/70   00:09:11  2164MN, tb=613282
The other two trials were about the same as for the time to get underpromotion in output regards
Peter.
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Vinvin
Posts: 5228
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Re: This position look like winning for White, but can your engine solve it?

Post by Vinvin »

SF13, Crystal 3.1 and some others find the winning line (with the underpromotion) in less than 10 seconds.
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peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: This position look like winning for White, but can your engine solve it?

Post by peter »

Vinvin wrote: ↑Sun Apr 25, 2021 2:29 am SF13, Crystal 3.1 and some others find the winning line (with the underpromotion) in less than 10 seconds.
Didn't see until now, that Chessqueen took Honey, I thought it was Black Diamond, so I tried this one, my mistake.
But yes, SF13 has underpromotion in output- line very fast too.
Peter.
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