Stockfish fínds mate in 50

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Eelco de Groot
Posts: 4567
Joined: Sun Mar 12, 2006 2:40 am
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Re: Stockfish fínds mate in 50

Post by Eelco de Groot »

Rainbow Serpent can confirm a Mate in 29 moves (or maybe a bit less, stopped after two hours when it saw -M29):

[D]3N2r1/3Kp3/4Pk2/8/Bp6/6b1/2P5/8 b - -

Engine: Rainbow Serpent 20160626_039 MP (i7 6700, 4 threads, 512 MB)
(Still a private version for the moment)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott

28/32 0:01 -1.82 1...Rg5 2.Bb3 Rf5 3.Nc6 Bd6 4.Bc4 Rc5
5.Bb3 Rh5 6.Nd8 Rf5 7.Nc6 Bc5 8.Bc4 Rf2
9.Bb3 Rd2+ 10.Kc7 Rh2 11.Nd8 Rh5
12.Kd7 Bd6 13.Nc6 Rg5 14.Nd8 Bc5 (14.006.883) 10127
.
.
.
39/49 0:50 -1.82 1...Rg5 2.Bb3 Rf5 3.Nc6 Bd6 4.Bc4 Rc5
5.Bb3 Rh5 6.Nd8 Rf5 7.Nc6 Rb5 8.Kd8 Rg5
9.Kd7 Bc5 10.Bc4 Rg2 11.Bb3 Rg8
12.Bc4 Rh8 13.Bd5 Rh2 14.Bb3 Bd6 (506.618.149) 9953

40/49 1:05 -1.90++ 1...Rxd8+ (658.307.523) 9982

40/49 1:06 -1.98++ 1...Rxd8+ (670.379.753) 10013

40/49 1:08 -2.09++ 1...Rxd8+ (685.141.960) 10060

40/49 1:09 -2.25++ 1...Rxd8+ (705.659.151) 10125
.
.
.
{Lots of FH, FL}
48/72 11:04 -65.33 1...Rxd8+ 2.Kxd8 Kxe6 3.Ke8 Kd6
4.Kf7 e5 5.Bb5 Kc5 6.Ba6 e4 7.Ke6 e3
8.Kf5 Kd4 9.Kg4 Kc3 10.Kxg3 Kxc2
11.Kf3 Kd2 12.Bc4 b3 13.Bxb3 e2
14.Bd5 e1Q (8.133.539.850) 12242
.
.
.
49/72 23:24 -93.91++ 1...Rxd8+ (18.032.889.653) 12837

49/72 28:27 -M41 1...Rxd8+ 2.Kxd8 Kxe6 3.Kc8 Kd6
4.Kb7 Kc5 5.Ka6 e5 6.Bb5 Be1 7.Bd3 Kd4
8.Be2 e4 9.Bd1 Kc4 10.Kb7 e3 11.Kb6 Bf2
12.Ka5 Bg3 13.Ka4 Kc3 14.Kb5 Bh4 (22.064.854.672) 12920

50/72 34:12 -M34 1...Rxd8+ 2.Kxd8 Kxe6 3.Kc8 Kd6
4.Kb7 Kc5 5.Ka6 e5 6.Bb5 Be1 7.Bd3 Kd4
8.Be2 e4 9.Bd1 Kc4 10.Kb7 e3 11.Kb6 Bh4
12.Kc6 Kc3 13.Kc5 Bf6 14.Kb5 Be7 (26.433.106.222) 12879

51/72 37:10 -M34 1...Rxd8+ 2.Kxd8 Kxe6 3.Kc8 Kd6
4.Kb7 Kc5 5.Ka6 e5 6.Bb5 Be1 7.Bd3 Kd4
8.Be2 e4 9.Bg4 e3 10.Kb5 Kc3 11.Bd1 Bg3
12.Kc5 Bh4 13.Bf3 Be7+ 14.Kd5 Kxc2 (28.584.399.006) 12816

52/72 57:02 -M31 1...Rxd8+ 2.Kxd8 Kxe6 3.Kc8 Kd6
4.Kb7 Kc5 5.Bc6 e5 6.Bf3 Kd4 7.Kc6 e4
8.Be2 Bh4 9.Bh5 e3 10.Bd1 Kc3 11.Kc5 Bf6
12.Bh5 Be7+ 13.Kd5 Kxc2 14.Kd4 Kd2 (42.992.537.773) 12563

53/72 83:55 -M31 1...Rxd8+ 2.Kxd8 Kxe6 3.Kc8 Kd6
4.Kb7 Kc5 5.Bc6 e5 6.Bf3 Kd4 7.Kc6 e4
8.Be2 Bh4 9.Bh5 e3 10.Bd1 Kc3 11.Kc5 Bf6
12.Bh5 Be7+ 13.Kd5 Kxc2 14.Kd4 Kd2 (63.379.088.731) 12586

54/72 124:59 -M29 1...Rxd8+ 2.Kxd8 Kxe6 3.Bd7+ Kd6
4.Bg4 e5 5.Bf3 Bh4+ 6.Ke8 Kc5 7.Kd7 Kd4
8.Kd6 e4 9.Bd1 Kc3 10.Kc6 e3 11.Kc5 Bf6
12.Kb5 Be7 13.Kc6 Kd2 14.Bh5 Kxc2 (92.421.919.562) 12323

best move: Rg8xd8 time: 134:41.562 min n/s: 12.323.369 nodes: 99.765.787.216
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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MikeGL
Posts: 1010
Joined: Thu Sep 01, 2011 2:49 pm

Re: Stockfish fínds mate in 50

Post by MikeGL »

Nordlandia wrote:Can your engine of choise solve this one :?:

[d]5B2/N3p3/1p5P/4k3/7b/1p6/b7/K7 w - - 0 0
Sorry, I hope this won't hijack the thread. But critter1.6a 32 bit on my
6 year old old dual core solves this in 00:09 seconds starting with 1.Bg7+
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peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Stockfish fínds mate in 50

Post by peter »

Hi Karol, hi Eelco!
Karol Majewski wrote: [d]3N2r1/3Kp3/4Pk2/8/Bp6/6b1/2P5/8 b - - 0 1

According to my analysis, it's mate in 29 starting with Rxd8+!
Eelco de Groot wrote:Rainbow Serpent can confirm a Mate in 29 moves (or maybe a bit less, stopped after two hours when it saw -M29):
One move less probably. After 1...Rxd8 2.Kxd8 Kxe6 it's such a line according to Lomonosovs:
3N2r1/3Kp3/4Pk2/8/Bp6/6b1/2P5/8 b - - 0 1

1... Rxd8+ 2. Kxd8 Kxe6 3. Bb5 Kd6 4. Ke8 e5 5. Kf7 e4 6. Kf6 e3 7. Ba6 Kd5 8.
Kf5 Kd4 9. Kg4 Kc3 10. Kf3 Kd2 11. Bc4 Bf2 12. Bb5 Bg1 13. Bc4 Kxc2 14. Ke2 b3
15. Bd3+ Kc1 16. Bc4 b2 17. Bd3 b1=Q 18. Bxb1 Kxb1 19. Ke1 Kc2 20. Ke2 Bf2 21.
Kf3 Kd3 22. Kf4 e2 23. Kf5 e1=Q 24. Kf6 Qe8 25. Kf5 Qe7 26. Kf4 Qf6+ 27. Kg4
Qe5 28. Kh3 Qg3#
Peter.
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tpoppins
Posts: 919
Joined: Tue Nov 24, 2015 9:11 pm
Location: upstate

Re: Stockfish fínds mate in 50

Post by tpoppins »

Karol Majewski wrote:On my list of positions that Stockfish can't solve but other top engines can - there is this:

[d]3N2r1/3Kp3/4Pk2/8/Bp6/6b1/2P5/8 b - - 0 1

According to my analysis, it's mate in 29 starting with Rxd8+!

But Stockfish will never find this move.

Code: Select all

Analysis by Stockfish 180816 64 POPCNT:

<...>
1...Rg4 2.Nc6 Bd6 3.Bb3 Rg2 4.Na7 Rd2 5.Nc6 Rh2 6.Nd8 Bf4 7.Nb7 Re2 8.Na5 Re1 9.Nc6 Rd1+ 10.Kc8 Bd6 11.Kd7 Bg3+ 12.Kc8 Be1 13.Kb7 Bc3 14.Kc8 Rd2 15.Nb8 Rd6 16.Nd7+ Kf5 17.Kc7 Be1 18.Kb7 Bg3 19.Nb8 Rd8 20.Nc6 Re8 21.Kb6 Bd6 22.Kb5 Ra8 23.Kb6 Kf6 24.Kb5 Rc8 25.Na5 Rb8+ 26.Kc6 Rh8 27.Nb7 Bf4 28.Kd7 Rh5 29.Nd8 Rc5 30.Nc6 Rb5 31.Bc4 Rb6 32.Bd5 Bd6 33.Bb3 Rb7+ 34.Kd8 Rb5 35.Kd7 Rb6 36.Nd4 Be5 37.Nc6 Rb7+ 38.Kd8 Bd6 39.Nd4 Rb8+ 40.Kd7 Rh8 41.Nc6 
  -+ (-1.69&#41;  Depth&#58; 71/84   02&#58;04&#58;09  152543MN
1...Rxd8+ 
  -+ (-1.76 ++)  Depth&#58; 72/84   02&#58;24&#58;25  176769MN
1...Rxd8+ 
  -+ (-1.83 ++)  Depth&#58; 72/84   02&#58;24&#58;31  176894MN
1...Rxd8+ 
  -+ (-1.93 ++)  Depth&#58; 72/84   02&#58;24&#58;34  176972MN
1...Rxd8+ 
  -+ (-2.08 ++)  Depth&#58; 72/84   02&#58;24&#58;50  177288MN
1...Rxd8+ 
  -+ (-2.28 ++)  Depth&#58; 72/84   02&#58;25&#58;00  177491MN
1...Rxd8+ 
  -+ (-2.55 ++)  Depth&#58; 72/88   02&#58;26&#58;36  179338MN
1...Rxd8+ 
  -+ (-2.91 ++)  Depth&#58; 72/88   02&#58;28&#58;20  181510MN
1...Rxd8+ 
  -+ (-3.37 ++)  Depth&#58; 72/88   02&#58;30&#58;12  184326MN
1...Rxd8+ 
  -+ (-3.98 ++)  Depth&#58; 72/88   02&#58;32&#58;22  187509MN
1...Rxd8+ 
  -+ (-4.74 ++)  Depth&#58; 72/88   02&#58;34&#58;57  190728MN
1...Rxd8+ 
  -+ (-5.72 ++)  Depth&#58; 72/88   02&#58;37&#58;14  194056MN
1...Rxd8+ 
  -+ (-6.96 ++)  Depth&#58; 72/88   02&#58;39&#58;52  197965MN
1...Rxd8+ 
  -+ (-8.53 ++)  Depth&#58; 72/88   02&#58;44&#58;30  205038MN
1...Rxd8+ 
  -+ (-10.51 ++)  Depth&#58; 72/88   02&#58;48&#58;43  211517MN
1...Rxd8+ 
  -+ (-13.00 ++)  Depth&#58; 72/88   02&#58;53&#58;13  218850MN
1...Rxd8+ 
  -+ (-16.13 ++)  Depth&#58; 72/88   02&#58;58&#58;06  226830MN
1...Rxd8+ 
  -+ (-20.07 ++)  Depth&#58; 72/92   03&#58;02&#58;14  233789MN
1...Rxd8+ 
  -+ (-25.00 ++)  Depth&#58; 72/92   03&#58;04&#58;05  236898MN
1...Rxd8+ 
  -+ (-31.19 ++)  Depth&#58; 72/92   03&#58;04&#58;57  238304MN
1...Rxd8+ 
  -+ (-38.94 ++)  Depth&#58; 72/92   03&#58;07&#58;17  242159MN
1...Rxd8+ 
  -+ (-48.65 ++)  Depth&#58; 72/92   03&#58;18&#58;29  262648MN
1...Rxd8+ 
  -+ (-60.81 ++)  Depth&#58; 72/102   03&#58;34&#58;19  293827MN
1...Rxd8+ 
  -+ (-76.02 ++)  Depth&#58; 72/102   03&#58;46&#58;42  317680MN
1...Rxd8+ 
  -+ (-95.05 ++)  Depth&#58; 72/104   03&#58;58&#58;16  339885MN
1...Rxd8+ 
  -+ (-118.86 ++)  Depth&#58; 72/106   04&#58;15&#58;05  372827MN
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Kf7 Kc5 6.Ba6 Kd4 7.Ke6 Bh2 8.Kf5 e4 9.Kg4 Kc3 10.Bb7 e3 11.Kf3 Kd2 12.Ba6 Bg1 13.Bb5 Kxc2 14.Ke2 b3 15.Ba4 Bf2 16.Bd7 b2 17.Bf5+ Kc1 18.Bd3 b1Q 19.Bxb1 Kxb1 20.Kd1 Kb2 21.Ke2 Kc3 22.Kf3 Kd3 23.Kg4 e2 24.Kg5 e1Q 25.Kf6 Bh4+ 26.Kf7 Qe7+ 27.Kg6 Ke4 28.Kh6 Kf5 29.Kh5 Qh7# 
  -+ (-#29&#41;  Depth&#58; 72/106   08&#58;12&#58;49  820506MN
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Kf7 Kc5 6.Ba6 Kd4 7.Ke6 Bh2 8.Kf5 e4 9.Kg4 Kc3 10.Bb7 e3 11.Kf3 Kd2 12.Ba6 Bg1 13.Bb5 Kxc2 14.Ke2 b3 15.Ba4 Bf2 16.Bd7 b2 17.Bf5+ Kc1 18.Bd3 b1Q 19.Bxb1 Kxb1 20.Kd1 Kb2 21.Ke2 Kc3 22.Kf3 Kd3 23.Kg4 e2 24.Kg5 e1Q 25.Kf6 Bh4+ 26.Kf7 Qe7+ 27.Kg6 Ke4 28.Kh6 Kf5 29.Kh5 Qh7# 
  -+ (-#29&#41;  Depth&#58; 73/106   08&#58;13&#58;09  821133MN
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Ba6 Kd5 6.Kf7 Kd4 7.Ke6 e4 8.Kf5 e3 9.Kg4 Kc3 10.Kf3 Kd2 11.Be2 Bf2 12.Bb5 Bg1 13.Bc4 Kxc2 14.Ke2 b3 15.Bd3+ Kc1 16.Bc4 b2 17.Ba2 b1Q 18.Bxb1 Kxb1 19.Kf1 Kc2 20.Kxg1 e2 21.Kf2 Kd2 22.Kf3 e1Q 23.Kf4 Qe7 24.Kg3 Qg5+ 25.Kf3 Qh4 26.Kg2 Ke3 27.Kg1 Kf3 28.Kf1 Qh1# 
  -+ (-#28&#41;  Depth&#58; 74/106   08&#58;17&#58;21  829125MN
<...>
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Ba6 Kd5 6.Kf7 Kd4 7.Ke6 e4 8.Kf5 e3 9.Kg4 Kc3 10.Kf3 Kd2 11.Be2 Bf2 12.Bb5 Bg1 13.Bc4 Kxc2 14.Ke2 b3 15.Bd3+ Kc1 16.Bc4 b2 17.Ba2 b1Q 18.Bxb1 Kxb1 19.Kf1 Kc2 20.Kxg1 e2 21.Kf2 Kd2 22.Kf3 e1Q 23.Kf4 Qe7 24.Kf5 Ke3 25.Kg4 Qc5 26.Kg3 Qg5+ 27.Kh2 Kf3 28.Kh3 Qg3# 
  -+ (-#28&#41;  Depth&#58; 99/106   10&#58;41&#58;18  1100643MN
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Karol Majewski
Posts: 106
Joined: Sat Jul 09, 2011 4:18 pm

Re: Stockfish fínds mate in 50

Post by Karol Majewski »

tpoppins wrote:
Karol Majewski wrote:On my list of positions that Stockfish can't solve but other top engines can - there is this:

[d]3N2r1/3Kp3/4Pk2/8/Bp6/6b1/2P5/8 b - - 0 1

According to my analysis, it's mate in 29 starting with Rxd8+!

But Stockfish will never find this move.

Code: Select all

Analysis by Stockfish 180816 64 POPCNT&#58;

<...>
1...Rg4 2.Nc6 Bd6 3.Bb3 Rg2 4.Na7 Rd2 5.Nc6 Rh2 6.Nd8 Bf4 7.Nb7 Re2 8.Na5 Re1 9.Nc6 Rd1+ 10.Kc8 Bd6 11.Kd7 Bg3+ 12.Kc8 Be1 13.Kb7 Bc3 14.Kc8 Rd2 15.Nb8 Rd6 16.Nd7+ Kf5 17.Kc7 Be1 18.Kb7 Bg3 19.Nb8 Rd8 20.Nc6 Re8 21.Kb6 Bd6 22.Kb5 Ra8 23.Kb6 Kf6 24.Kb5 Rc8 25.Na5 Rb8+ 26.Kc6 Rh8 27.Nb7 Bf4 28.Kd7 Rh5 29.Nd8 Rc5 30.Nc6 Rb5 31.Bc4 Rb6 32.Bd5 Bd6 33.Bb3 Rb7+ 34.Kd8 Rb5 35.Kd7 Rb6 36.Nd4 Be5 37.Nc6 Rb7+ 38.Kd8 Bd6 39.Nd4 Rb8+ 40.Kd7 Rh8 41.Nc6 
  -+ (-1.69&#41;  Depth&#58; 71/84   02&#58;04&#58;09  152543MN
1...Rxd8+ 
  -+ (-1.76 ++)  Depth&#58; 72/84   02&#58;24&#58;25  176769MN
1...Rxd8+ 
  -+ (-1.83 ++)  Depth&#58; 72/84   02&#58;24&#58;31  176894MN
1...Rxd8+ 
  -+ (-1.93 ++)  Depth&#58; 72/84   02&#58;24&#58;34  176972MN
1...Rxd8+ 
  -+ (-2.08 ++)  Depth&#58; 72/84   02&#58;24&#58;50  177288MN
1...Rxd8+ 
  -+ (-2.28 ++)  Depth&#58; 72/84   02&#58;25&#58;00  177491MN
1...Rxd8+ 
  -+ (-2.55 ++)  Depth&#58; 72/88   02&#58;26&#58;36  179338MN
1...Rxd8+ 
  -+ (-2.91 ++)  Depth&#58; 72/88   02&#58;28&#58;20  181510MN
1...Rxd8+ 
  -+ (-3.37 ++)  Depth&#58; 72/88   02&#58;30&#58;12  184326MN
1...Rxd8+ 
  -+ (-3.98 ++)  Depth&#58; 72/88   02&#58;32&#58;22  187509MN
1...Rxd8+ 
  -+ (-4.74 ++)  Depth&#58; 72/88   02&#58;34&#58;57  190728MN
1...Rxd8+ 
  -+ (-5.72 ++)  Depth&#58; 72/88   02&#58;37&#58;14  194056MN
1...Rxd8+ 
  -+ (-6.96 ++)  Depth&#58; 72/88   02&#58;39&#58;52  197965MN
1...Rxd8+ 
  -+ (-8.53 ++)  Depth&#58; 72/88   02&#58;44&#58;30  205038MN
1...Rxd8+ 
  -+ (-10.51 ++)  Depth&#58; 72/88   02&#58;48&#58;43  211517MN
1...Rxd8+ 
  -+ (-13.00 ++)  Depth&#58; 72/88   02&#58;53&#58;13  218850MN
1...Rxd8+ 
  -+ (-16.13 ++)  Depth&#58; 72/88   02&#58;58&#58;06  226830MN
1...Rxd8+ 
  -+ (-20.07 ++)  Depth&#58; 72/92   03&#58;02&#58;14  233789MN
1...Rxd8+ 
  -+ (-25.00 ++)  Depth&#58; 72/92   03&#58;04&#58;05  236898MN
1...Rxd8+ 
  -+ (-31.19 ++)  Depth&#58; 72/92   03&#58;04&#58;57  238304MN
1...Rxd8+ 
  -+ (-38.94 ++)  Depth&#58; 72/92   03&#58;07&#58;17  242159MN
1...Rxd8+ 
  -+ (-48.65 ++)  Depth&#58; 72/92   03&#58;18&#58;29  262648MN
1...Rxd8+ 
  -+ (-60.81 ++)  Depth&#58; 72/102   03&#58;34&#58;19  293827MN
1...Rxd8+ 
  -+ (-76.02 ++)  Depth&#58; 72/102   03&#58;46&#58;42  317680MN
1...Rxd8+ 
  -+ (-95.05 ++)  Depth&#58; 72/104   03&#58;58&#58;16  339885MN
1...Rxd8+ 
  -+ (-118.86 ++)  Depth&#58; 72/106   04&#58;15&#58;05  372827MN
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Kf7 Kc5 6.Ba6 Kd4 7.Ke6 Bh2 8.Kf5 e4 9.Kg4 Kc3 10.Bb7 e3 11.Kf3 Kd2 12.Ba6 Bg1 13.Bb5 Kxc2 14.Ke2 b3 15.Ba4 Bf2 16.Bd7 b2 17.Bf5+ Kc1 18.Bd3 b1Q 19.Bxb1 Kxb1 20.Kd1 Kb2 21.Ke2 Kc3 22.Kf3 Kd3 23.Kg4 e2 24.Kg5 e1Q 25.Kf6 Bh4+ 26.Kf7 Qe7+ 27.Kg6 Ke4 28.Kh6 Kf5 29.Kh5 Qh7# 
  -+ (-#29&#41;  Depth&#58; 72/106   08&#58;12&#58;49  820506MN
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Kf7 Kc5 6.Ba6 Kd4 7.Ke6 Bh2 8.Kf5 e4 9.Kg4 Kc3 10.Bb7 e3 11.Kf3 Kd2 12.Ba6 Bg1 13.Bb5 Kxc2 14.Ke2 b3 15.Ba4 Bf2 16.Bd7 b2 17.Bf5+ Kc1 18.Bd3 b1Q 19.Bxb1 Kxb1 20.Kd1 Kb2 21.Ke2 Kc3 22.Kf3 Kd3 23.Kg4 e2 24.Kg5 e1Q 25.Kf6 Bh4+ 26.Kf7 Qe7+ 27.Kg6 Ke4 28.Kh6 Kf5 29.Kh5 Qh7# 
  -+ (-#29&#41;  Depth&#58; 73/106   08&#58;13&#58;09  821133MN
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Ba6 Kd5 6.Kf7 Kd4 7.Ke6 e4 8.Kf5 e3 9.Kg4 Kc3 10.Kf3 Kd2 11.Be2 Bf2 12.Bb5 Bg1 13.Bc4 Kxc2 14.Ke2 b3 15.Bd3+ Kc1 16.Bc4 b2 17.Ba2 b1Q 18.Bxb1 Kxb1 19.Kf1 Kc2 20.Kxg1 e2 21.Kf2 Kd2 22.Kf3 e1Q 23.Kf4 Qe7 24.Kg3 Qg5+ 25.Kf3 Qh4 26.Kg2 Ke3 27.Kg1 Kf3 28.Kf1 Qh1# 
  -+ (-#28&#41;  Depth&#58; 74/106   08&#58;17&#58;21  829125MN
<...>
1...Rxd8+ 2.Kxd8 Kxe6 3.Bb5 Kd6 4.Ke8 e5 5.Ba6 Kd5 6.Kf7 Kd4 7.Ke6 e4 8.Kf5 e3 9.Kg4 Kc3 10.Kf3 Kd2 11.Be2 Bf2 12.Bb5 Bg1 13.Bc4 Kxc2 14.Ke2 b3 15.Bd3+ Kc1 16.Bc4 b2 17.Ba2 b1Q 18.Bxb1 Kxb1 19.Kf1 Kc2 20.Kxg1 e2 21.Kf2 Kd2 22.Kf3 e1Q 23.Kf4 Qe7 24.Kf5 Ke3 25.Kg4 Qc5 26.Kg3 Qg5+ 27.Kh2 Kf3 28.Kh3 Qg3# 
  -+ (-#28&#41;  Depth&#58; 99/106   10&#58;41&#58;18  1100643MN
How many cores?
Top
acase
Posts: 983
Joined: Wed Mar 15, 2006 1:14 am
Location: Columbus, Ohio USA
Full name: Andrew R Case

Re: Stockfish fínds mate in 50

Post by acase »

Nordlandia wrote:Can your engine of choise solve this one :?:

[d]5B2/N3p3/1p5P/4k3/7b/1p6/b7/K7 w - - 0 0




Yes, Critter 1.6a solves this one rather quickly on my computer.



New game
5B2/N3p3/1p5P/4k3/7b/1p6/b7/K7 w - - 0 1

Analysis by Critter 1.6a 64-bit:

1.Kb2 Kf5 2.Bg7 Kg6 3.Nc6 Bg5 4.Bd4 Kxh6 5.Bxb6
-/+ (-0.94) Depth: 7/9 00:00:00 4kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Ke6+ 4.Bb2 Kf7 5.Nb5 Kg6 6.h8Q Bxh8 7.Bxh8
= (0.23) Depth: 7/13 00:00:00 6kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Ke6+ 4.Bb2 Kf7 5.Nb5 Kg6 6.h8Q Bxh8 7.Bxh8
= (0.23) Depth: 8/13 00:00:00 7kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Ke6+ 4.Bb2 Kf7 5.Nb5 Kg6 6.h8Q Bxh8 7.Bxh8 Kf5 8.Nd6+ Ke6
+/= (0.32 ++) Depth: 9/18 00:00:00 12kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Ke6+ 4.Bb2 Kf7 5.Nb5 Kg6 6.h8Q Bxh8 7.Bxh8 Kf5 8.Nd6+ Ke6
+/= (0.45 ++) Depth: 9/18 00:00:00 14kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf5+ 4.Bb2 Kg6 5.h8Q Bxh8 6.Bxh8 Kh7 7.Bb2 Kg6 8.Nc6
+/= (0.64) Depth: 9/18 00:00:00 17kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Ke6+ 4.Bb2 Kf7 5.Nb5 Kg6 6.h8Q Bxh8 7.Bxh8 Kf5 8.Nd6+ Ke6
+/- (0.71) Depth: 10/18 00:00:00 24kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf5+ 4.Bb2 Kg6 5.h8Q Bxh8 6.Bxh8 Kf5 7.Kb2 Ke4 8.Nc6 Kd3 9.Bc3
+/- (0.79) Depth: 11/26 00:00:00 49kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 Kc5 9.Ne7 Kb4 10.Be5 Kc4 11.Nf5
+/- (0.74) Depth: 12/26 00:00:00 68kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 Kc5 9.Ne7 Kb4 10.Be5 Kc4 11.Nf5
+/- (0.83 ++) Depth: 13/26 00:00:00 97kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 b5 9.Bf6 Kc5 10.Ne7 Kc4 11.Nf5 Kd3
+/- (0.92) Depth: 13/26 00:00:00 122kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 b5 9.Bg7 b4 10.Nb6+ Kc5 11.Nd7+ Kc4 12.Ne5+ Kd5 13.Bf6 Kc5 14.Nf3
+/- (0.92) Depth: 14/26 00:00:00 218kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 b5 9.Bg7 b4 10.Nb6+ Kc5 11.Nd7+ Kc4 12.Ne5+ Kd5 13.Bf6 Kc5 14.Nf3
+/- (0.92) Depth: 15/27 00:00:00 351kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf5+ 4.Bb2 Kg6 5.h8Q Bxh8 6.Bxh8 Kf5 7.Bc3 Ke6 8.Nc6 Kd6 9.Ne5 Kd5 10.Kb2 Ke4 11.Ng6 Kd3 12.Ne5+ Ke4
+/- (0.94) Depth: 16/29 00:00:00 633kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Nb5 Kd5 8.Kb2 Kc5 9.Nc3 Kc4 10.Ne4 Kd5 11.Nd2 b5 12.Bc3 Kc5 13.Ne4+ Kd5 14.Nd2
+/- (0.98) Depth: 17/31 00:00:01 1472kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Nb5 Kd5 8.Kb2 Kc5 9.Nc3 Kc4 10.Ne4 Kd5 11.Nd2 b5 12.Bc3 Kc5 13.Ne4+ Kd5 14.Nf6+ Kc5 15.Nd7+ Kd5 16.Nb6+ Ke4 17.Nd7 Kd5
+/- (0.98) Depth: 18/34 00:00:01 2035kN
1.Bg7+ Kf5 2.h7
+/- (1.06 ++) Depth: 18/34 00:00:01 3101kN
1.Bg7+ Kf5 2.h7
+/- (1.19 ++) Depth: 18/34 00:00:01 3396kN
1.Bg7+ Kf5 2.h7
+/- (1.38 ++) Depth: 18/34 00:00:01 3701kN
1.Bg7+ Kf5 2.h7
+- (1.67 ++) Depth: 18/34 00:00:01 4062kN
1.Bg7+ Kf5 2.h7
+- (2.09 ++) Depth: 18/34 00:00:02 4513kN
1.Bg7+ Kf5 2.h7
+- (2.73 ++) Depth: 18/34 00:00:02 5079kN
1.Bg7+ Kf5 2.h7
+- (3.68 ++) Depth: 18/34 00:00:02 5868kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kg6 4.Bg7 e6 5.Kb2 Kh7 6.Ne5 b5 7.Nd3 Kg8 8.Nf4 e5 9.Bxe5 Kh7 10.Bg7 Kg8 11.Ng6 Kh7 12.Ne7 b4 13.Nd5 Kg8 14.Nxb4 Kh7 15.Nd3 Kg6
+- (4.23) Depth: 18/38 00:00:02 7404kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kg6 4.Bg7 e6 5.Kb2 Kh7 6.Ne5 b5 7.Nd3 Kg8 8.Nf4 e5 9.Bxe5 Kh7 10.Bg7 b4 11.Nd5 Kg8 12.Ne3 Kh7 13.Nc4 Kg6 14.Ne5+ Kh7 15.Nd3 Kg6 16.Nc1 Kh7 17.Nd3
+- (4.49 ++) Depth: 19/40 00:00:02 8842kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kg6 4.Bg7 e6 5.Kb2 Kh7 6.Ne5 b5 7.Nd3 Kg8 8.Nf4 e5 9.Bxe5 Kh7 10.Bg7 Kg8 11.Ng6 Kh7 12.Ne7 b4 13.Nd5 Kg6 14.Nf4+ Kh7 15.Nd5
+- (4.88 ++) Depth: 19/42 00:00:03 10181kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kg6 4.Bg7 e6 5.Kb2 Kh7 6.Ne5 b5 7.Nd3 Kg8 8.Nf4 e5 9.Bxe5 Kh7 10.Bg7 Kg8 11.Ng6 Kh7 12.Ne7 b4 13.Bf8 Kh8 14.Nd5 Kg8 15.Bg7 Kf7 16.Nxb4 Kg6 17.Nd5 Kf7 18.Nf4 Kg8
+- (5.46 ++) Depth: 19/44 00:00:03 12754kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qg8+ Kd4 11.Qd8+ Kc5 12.Qd3 Kc6 13.Qe4+ Kd6 14.Qe2 Kd5 15.Qxb5+ Kd4 16.Qb4+ Kd3 17.Qd6+ Ke4 18.Qd1 Kf4 19.Qf1+ Ke4 20.Qc4+ Ke3 21.Qd5 Kf4 22.Kc3 e4 23.Kd4
+- (5.68) Depth: 19/46 00:00:04 17403kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 e6 7.Kb2 Kxe5 8.h7 Kd4 9.h8Q+ e5 10.Qf6 Ke4 11.Qf8 Ke3 12.Qxb4 Kf3 13.Qc3+ Kf4 14.Qb4+ e4 15.Qd4 Kf3
+- (5.94) Depth: 20/46 00:00:04 20657kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 e6 7.Kb2 Kxe5 8.h7 Kd4 9.h8Q+ e5 10.Qf6 Ke4 11.Qf8 Ke3 12.Qxb4 Kf3 13.Qc3+ Kf4 14.Qd2+ Ke4 15.Qe2+ Kd4 16.Qe1 e4 17.Qb4+ Kd3 18.Qb5+ Kd4 19.Qe2 Kd5 20.Kc3 Ke5 21.Qb5+ Kf4 22.Kd4 Kf3 23.Qf1+ Kg3 24.Qg1+ Kf4 25.Qe3+ Kf5 26.Qxe4+ Kf6 27.Qe5+
+- (5.94) Depth: 21/46 00:00:04 23479kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 Kxe5 7.h7 Kd5 8.h8Q e5 9.Qg8+ Ke4 10.Qf8 Ke3 11.Qc5+ Kf4 12.Qd6 Ke4 13.Qxb4+ Kf3 14.Qc3+ Ke4 15.Kb2 Kd5 16.Qd3+ Kc5 17.Qe4 Kd6 18.Kc3 Ke6 19.Qg6+ Kd5 20.Qf6 Ke4 21.Qf2 Kd5 22.Qf5 Kd6 23.Qf7 Bb1 24.Qxb3 Bf5 25.Kd2 Be4 26.Ke3 Bd5 27.Qb6+ Bc6 28.Qb4+ Ke6
+- (6.19) Depth: 22/46 00:00:05 34956kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 Kxe5 7.h7 Kd5 8.h8Q e5 9.Qg8+ Ke4 10.Qf8 Ke3 11.Qc5+ Kf4 12.Qd6 Ke4 13.Qc6+ Ke3 14.Qc5+
+- (6.58 ++) Depth: 23/50 00:00:07 60463kN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 Kxe5 7.h7 Kd5 8.h8Q e5 9.Qg8+ Ke4 10.Qf8 Ke3 11.Qc5+ Kf4 12.Qd6 Ke4 13.Qc6+ Ke3 14.Qc5+
+- (7.16 ++) Depth: 23/53 00:00:11 110MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 Kxe5 7.h7 Kd5 8.h8Q Ke6 9.Qg8+ Kf6 10.Qf8+ Ke6 11.Kb2 Kd6 12.Qf4+ Ke6 13.Qxb4 Kf7 14.Qc4+ Kf6 15.Qe2 e6 16.Qe4 Kf7 17.Qf4+ Ke7 18.Qe5 Kf7 19.Qg5 Ke8 20.Qf4 Kd7 21.Qd4+ Ke7 22.Qe5
+- (7.16) Depth: 23/64 00:00:13 127MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 Kxe5 7.h7 Kd5 8.h8Q Ke6 9.Qg8+ Ke5 10.Qg7+ Ke6 11.Qd4 Kf5 12.Qd5+ Kf6 13.Kb2 e6 14.Qc4 Kf5 15.Qd4 Kg6 16.Qg4+ Kf7 17.Qxb4 Kg6 18.Qf4 Kg7 19.Qe5+ Kf7 20.Qg5 Ke8 21.Qf4 Kd7 22.Qd2+ Ke7 23.Qb4+ Kf6 24.Qf4+ Ke7 25.Qe5 Kf7
+- (7.60 ++) Depth: 24/64 00:00:19 227MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 b4 6.Ka1 Kxe5 7.h7 Kd5 8.h8Q Ke6 9.Qb8 Kd5 10.Kb2 Ke6 11.Qxb4 Kf7 12.Qc4+ Kf6 13.Qe4 e6 14.Qf4+ Kg7 15.Qe5+ Kf7 16.Qg5 Ke8 17.Qg7 Kd8 18.Qf7 e5 19.Qd5+ Kc7 20.Qxe5+ Kc6 21.Qd4 Kb5 22.Qd5+ Kb6 23.Qd6+ Ka5 24.Qd2+ Kb5 25.Qd3+ Kb4 26.Qf1 Kc5 27.Qd1 Kc6 28.Qd4
+- (7.77) Depth: 24/64 00:00:25 311MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 Kxe5 5.h7 Kd5 6.h8Q e6 7.Qa8+ Kd6 8.Qb8+ Kc5 9.Qc7+ Kb5 10.Qd7+ Kb4 11.Qd4+ Kb5 12.Kb2 Ka5 13.Qe5+ Ka6 14.Qxe6 Ka5 15.Qc6 Ka6 16.Qa4+ Kb7 17.Qe4+ Ka6 18.Qa4+
+- (7.85) Depth: 25/64 00:00:35 434MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 Kxe5 5.h7 Ke6 6.h8Q Kd5 7.Kb2 e5 8.Qg8+ Kd6 9.Qc4 e4 10.Qxe4 Kc5 11.Qe7+ Kc6 12.Qe5 Kb7 13.Qe4+ Ka7 14.Qa4+ Kb7 15.Qc4 Kb8 16.Qc6 Ka7 17.Qc8 b5 18.Qc5+ Ka6 19.Kc3 b4+ 20.Qxb4 Ka7 21.Kb2 Ka6 22.Qd6+ Ka5 23.Qd2+ Ka4 24.Qf4+ Kb5 25.Qd6 Ka5
+- (7.86) Depth: 26/64 00:00:48 596MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 Kxe5 5.h7 Ke6 6.h8Q Kd5 7.Kb2 e5 8.Qg8+ Kd6 9.Qc4 e4 10.Qxe4 Kc5 11.Qe7+ Kc6 12.Qe5 b5 13.Qe4+ Kc5 14.Qe3+ Kd5 15.Qb6 Kc4 16.Qd6 b4 17.Qe5 Kd3 18.Qd5+ Ke3 19.Qc5+ Ke4 20.Qxb4+ Kd5 21.Qb5+ Ke4 22.Qe2+ Kf5 23.Qe3 Kg4 24.Qe4+ Kg5 25.Qf3 Kh6 26.Qf6+ Kh5 27.Qf5+ Kh4 28.Qg6 Kh3 29.Qg5 Kh2 30.Qg4 Kh1 31.Kc3 Kh2 32.Qf3 Kg1 33.Kb2 Kh2 34.Qg4
+- (7.86) Depth: 27/64 00:00:58 709MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 Kxe5 5.h7 Ke6 6.h8Q Kd5 7.Kb2 e5 8.Qg8+ Kd6 9.Qc4 e4 10.Qxe4 Kc5 11.Qe7+ Kd5 12.Qd7+ Kc5 13.Kc3 b5 14.Qe6 b4+ 15.Kb2 Kb5 16.Qd5+ Kb6 17.Qe5 Kc6 18.Qe4+ Kc5 19.Qg4 Kd5 20.Qxb4 Kc6 21.Qe4+ Kb6 22.Qd4+ Kc6 23.Qc4+ Kd6 24.Qe4 Kc5 25.Qe5+ Kc6 26.Qd4 Kb5 27.Qd5+ Kb6 28.Qd6+ Ka5 29.Qc7+ Kb4 30.Qb8+ Kc5 31.Qf4 Kc6 32.Qd4
+- (7.86) Depth: 28/64 00:01:13 890MN
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 Kxe5 5.h7 Ke6 6.h8Q Kd5 7.Kb2 e5 8.Qg8+ Kd6 9.Qc4 Ke7 10.Qb4+ Ke6 11.Qxb6+ Kf5 12.Qe3 Ke6 13.Qd3 Ke7 14.Qg6 Kd7 15.Qf6 e4 16.Qd4+ Kc6 17.Qxe4+ Kc7 18.Qe5+ Kc6 19.Qd4 Kb5 20.Qd5+ Kb6 21.Qd6+ Kb7 22.Qc5 Ka6 23.Qc6+ Ka5 24.Qd5+ Kb6
+- (7.86) Depth: 29/64 00:01:36 1141MN




also Houdini 4 tactical (non-tactical is also very fast at 1 second) gets this one rather quickly:


New game
5B2/N3p3/1p5P/4k3/7b/1p6/b7/K7 w - - 0 1

Analysis by Houdini 4 Pro x64:

1.Bg7+
-/+ (-0.80 ++) Depth: 7/15 00:00:01 7kN
1.Bg7+
=/+ (-0.65 ++) Depth: 7/15 00:00:01 7kN
1.Bg7+
=/+ (-0.36 ++) Depth: 7/15 00:00:01 7kN
1.Bg7+ Bf6 2.Kb2 Ke6+ 3.Bxf6 Kxf6 4.Nc6 Kg6 5.h7 Kxh7 6.Nxe7
=/+ (-0.34) Depth: 7/15 00:00:01 8kN
1.h7
= (-0.29 ++) Depth: 8/17 00:00:01 14kN
1.h7
= (-0.18 ++) Depth: 8/17 00:00:01 15kN
1.h7
= (0.06 ++) Depth: 8/17 00:00:01 16kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8R Bxh8 6.Bxh8 Kg8 7.Bb2
= (0.27) Depth: 8/17 00:00:01 20kN
1.h7
+/= (0.33 ++) Depth: 9/17 00:00:01 24kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kg6 5.h8Q Bxh8 6.Bxh8 Kf5 7.Kb2 Ke4 8.Nc6
+/= (0.43) Depth: 9/20 00:00:01 26kN
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kg6 5.h8Q Bxh8 6.Bxh8 Kf5 7.Kb2 Ke4 8.Nc6
+/= (0.43) Depth: 10/20 00:00:01 30kN
1.h7
+/= (0.49 ++) Depth: 11/22 00:00:01 56kN, tb=1
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kg6 5.h8Q Bxh8 6.Bxh8 Kf5 7.Kb2 Ke4 8.Nc6 Kd5
+/= (0.57) Depth: 11/22 00:00:01 61kN, tb=1
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kg6 5.h8Q Bxh8 6.Bxh8 Kf5 7.Kb2 Ke4 8.Nb5 Kd3 9.Bd4
+/= (0.56) Depth: 12/24 00:00:01 154kN, tb=24
1.h7 Bf6
+/= (0.48 --) Depth: 13/31 00:00:01 276kN, tb=33
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8N+ Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 Kc4 9.Bc3 Bb1 10.Nd6+ Kd3 11.Nf5
+/= (0.56) Depth: 13/31 00:00:01 469kN, tb=100
1.h7
+/= (0.63 ++) Depth: 14/31 00:00:01 659kN, tb=155
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 Kc4 9.Ne7 Kd3 10.Bc3 Kc4 11.Nc6
+/= (0.55) Depth: 14/31 00:00:01 666kN, tb=155
1.h7
+/= (0.62 ++) Depth: 15/31 00:00:01 903kN, tb=200
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 b5 9.Ne7+ Ke6 10.Nc6 b4 11.Nd4+ Kd5 12.Bf6 Ke4 13.Nb5 Kd5 14.Bd4 Kc4
+/= (0.63) Depth: 15/31 00:00:01 983kN, tb=205
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 b5 9.Ne7+ Ke6 10.Nc6 Kd5 11.Nd4 Ke4 12.Bf6 b4 13.Nb5 Kd5 14.Bd4 Kc4
+/= (0.63) Depth: 16/31 00:00:01 1401kN, tb=293
1.h7 Bf6 2.Bxe7 Bg7 3.Ba3 Kf6 4.Bb2+ Kf7 5.h8Q Bxh8 6.Bxh8 Ke6 7.Kb2 Kd5 8.Nc8 Ke6 9.Bc3 Kd5 10.Ne7+ Ke4 11.Nc6 Kd5 12.Nd4 Kc4 13.Nf5 Bb1 14.Ne3+ Kd3
+/= (0.59) Depth: 17/34 00:00:01 2344kN, tb=655
1.Bg7+
+/= (0.70 ++) Depth: 17/36 00:00:01 4062kN, tb=1343
1.Bg7+
+/- (0.85 ++) Depth: 17/36 00:00:01 4177kN, tb=1379
1.Bg7+
+/- (1.21 ++) Depth: 17/36 00:00:01 4215kN, tb=1385
1.Bg7+
+- (2.19 ++) Depth: 17/36 00:00:01 4280kN, tb=1387
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kg6 4.Bg7 e6 5.Kb2 b5 6.Ne5+ Kh7 7.Nd3 Kg8 8.Nc5 e5 9.Bxe5 Kh7 10.Bg7 Kg6 11.Nxb3 Bxb3 12.Kxb3 Kh7 13.Kb4 Kg6 14.Kxb5 Kh7 15.Kc4 Kg6 16.Kd4
+- (4.04) Depth: 17/39 00:00:01 4766kN, tb=1423
1.Bg7+
+- (4.20 ++) Depth: 17/40 00:00:01 4881kN, tb=1441
1.Bg7+
+- (4.54 ++) Depth: 17/40 00:00:01 4953kN, tb=1453
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kg6 4.Bg7 e6 5.Ne5+ Kh7 6.Kb2 Kg8 7.Ng6 e5 8.Nxe5 Kh7 9.Nd7 Kg6 10.Nxb6 Kh7 11.Nc4 Kg6 12.Nd2 Kh7 13.Nxb3 Bxb3 14.Kxb3 Kg6 15.Kb4 Kh7 16.Kc5 Kg6 17.Kd4
+- (3.90) Depth: 17/40 00:00:01 4975kN, tb=1453
1.Bg7+
+- (4.06 ++) Depth: 17/40 00:00:01 5135kN, tb=1527
1.Bg7+
+- (4.38 ++) Depth: 17/40 00:00:01 5276kN, tb=1592
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qd8+ Kc4 11.Qc7+ Kd5 12.Qd7+ Kc4 13.Qc6+ Kd4 14.Qd6+ Ke4 15.Qg6+ Kf4 16.Qf6+ Ke4 17.Kc3 b2 18.Qc6+ Kf4 19.Kxb2 Bc4
+- (4.71) Depth: 17/46 00:00:01 5963kN, tb=1711
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qf6 Ke4 11.Qf1 Kd4 12.Qe2 e4 13.Qxb5 Ke3 14.Kc3 Kf2 15.Qf5+ Ke3 16.Qg4 b2 17.Qg3+ Ke2 18.Qg2+ Ke3 19.Qxb2 Bf7 20.Qd2+ Kf3 21.Qd8
+- (4.84) Depth: 17/46 00:00:01 6513kN, tb=1875
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qa8+ Kd4 11.Qb8 e4 12.Qxb5 Ke3 13.Kc3 Kf2 14.Kd4 e3 15.Qf5+ Ke1 16.Kxe3 Kd1 17.Qd5+ Kc2 18.Kd4 Bb1
+- (4.86) Depth: 18/46 00:00:01 7359kN, tb=2087
1.Bg7+
+- (5.06 ++) Depth: 19/46 00:00:02 8842kN, tb=2422
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qa8+ Kd4 11.Qb7 b4 12.Qxb4+ Ke3 13.Qe1+ Kf4 14.Qe2 e4 15.Kc3 Ke5 16.Qg4 b2 17.Qg5+ Kd6 18.Qf4+ Kc5 19.Kxb2 Bd5 20.Qe3+ Kc4
+- (5.07) Depth: 19/46 00:00:02 10261kN, tb=2828
1.Bg7+
+- (5.28 ++) Depth: 20/46 00:00:02 12856kN, tb=3465
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qb8 Kd4 11.Qxb5 Ke4 12.Kc3 Kf4 13.Qd3 Kg5 14.Qe4 Kf6 15.Qg4 b2 16.Qf3+ Kg5 17.Kxb2 Be6 18.Qe4 Kf6 19.Kc3 Bf5 20.Qd5 Be6
+- (5.45) Depth: 20/46 00:00:02 15695kN, tb=4056
1.Bg7+
+- (5.68 ++) Depth: 21/52 00:00:02 21434kN, tb=5220
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qb8 Kd4 11.Qxb5 Ke4 12.Kc3 Kf4 13.Qf1+ Kg5 14.Qf7 Kg4 15.Qf6 e4 16.Qf2 Kg5 17.Kd4 Kg6 18.Qg3+ Kf7 19.Kxe4 Kf6 20.Qe5+ Kg6 21.Ke3 Kh6
+- (5.78) Depth: 21/52 00:00:02 25812kN, tb=6207
1.Bg7+
+- (6.03 ++) Depth: 22/54 00:00:03 36277kN, tb=7966
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh1+ e4 11.Qd1+ Ke5 12.Qh5+ Kf4 13.Qxb5 Ke3 14.Qc4 Kf4 15.Kc3 Ke5 16.Qd4+ Kf5 17.Qf2+ Ke5 18.Qg3+ Ke6 19.Qg6+ Ke5 20.Qg5+ Ke6 21.Kb2 Kd6 22.Qb5 Ke6 23.Qc5 e3 24.Qxe3+ Kd5 25.Qf3+ Kc4 26.Qc3+ Kd5 27.Qe3 Kc4 28.Qe5 Kb4 29.Qd4+ Kb5 30.Kc3 Kc6 31.Qe4+ Kc5 32.Qe3+ Kd5 33.Qe2 Kc6 34.Qd3 Kb6 35.Qc4 Kb7 36.Qe6 Kc7 37.Kb2
+- (6.32) Depth: 22/54 00:00:03 57649kN, tb=10406
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh1+ e4 11.Qd1+ Ke5 12.Qh5+ Kf4 13.Qxb5 Ke3 14.Qc4 Kf4 15.Kc3 Ke5 16.Qd4+ Kf5 17.Qf2+ Ke5 18.Qg3+ Ke6 19.Qg6+ Ke5 20.Qg5+ Ke6 21.Kb2 Kd6 22.Qb5 Ke6 23.Qc5 e3 24.Qxe3+ Kd5 25.Qf3+ Kc4 26.Qc3+ Kd5 27.Qe3 Kc4 28.Qe5 Kb4 29.Qd4+ Kb5 30.Kc3 Kc6 31.Qe4+ Kc5 32.Qe3+ Kd5 33.Qe2 Kc6 34.Qd3 Kb6 35.Qc4 Kb7 36.Qe6 Kc7 37.Kb2
+- (6.32) Depth: 23/74 00:00:04 70063kN, tb=14147
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh1+ e4 11.Qh5+ Kd4 12.Qxb5 Ke3 13.Qc4 Kf4 14.Kc3 Ke5 15.Qb5+ Ke6 16.Qe8+ Kd5 17.Qd7+ Ke5 18.Qb5+ Ke6
+- (6.32) Depth: 24/74 00:00:05 90100kN, tb=21200
1.Bg7+
+- (6.58 ++) Depth: 25/74 00:00:07 140MN, tb=27073
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh1+ Ke6 11.Qf1 b4 12.Qc4+ Kf5 13.Qxb4 e4 14.Qb5+ Kf4 15.Kc3 e3 16.Kd4 Kf3 17.Qf1+ Kg4 18.Kxe3 Kg5 19.Qf7 Bb1 20.Qxb3 Bf5 21.Qd5 Kf6 22.Kf4 Bg6 23.Qc6+ Kg7 24.Kg5 Bf7 25.Qd7 Kf8
+- (7.06) Depth: 25/74 00:00:09 212MN, tb=36447
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh4 Ke6 11.Qh1 Kf6 12.Qf1+ Kg5 13.Qxb5 Kf5 14.Qa4 e4 15.Qd4 Ke6 16.Qxe4+ Kf6 17.Qd5 Kg7 18.Qe5+ Kh6 19.Qf6+ Kh7 20.Qg5 Kh8 21.Qg6
+- (7.12) Depth: 26/74 00:00:12 294MN, tb=54819
1.Bg7+
+- (7.41 ++) Depth: 27/74 00:00:16 423MN, tb=70353
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh4 Ke6 11.Qh3+ Kd5 12.Qg4 Kd6 13.Qg8 Kc5 14.Qd8 Kc6 15.Qd2 Kc5 16.Qd7 b4 17.Qd3 Kc6 18.Qd8 Kc5 19.Qd7 e4 20.Qd2 Kc6 21.Qe2 Kb6 22.Qxe4 Kc7 23.Qe7+ Kc6 24.Qe5 Kd7 25.Qd4+ Kc7 26.Qe3 Kd6 27.Qe2 Kc7 28.Qe6 Kb7 29.Qe4+ Kc7 30.Qe7+
+- (7.99) Depth: 27/74 00:00:22 620MN, tb=91373
1.Bg7+
+- (8.32 ++) Depth: 28/74 00:00:29 839MN, tb=113157
1.Bg7+
+- (8.99 ++) Depth: 28/74 00:00:38 1167MN, tb=125153
1.Bg7+
+- (10.87 ++) Depth: 28/74 00:01:15 2781MN, tb=211040
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh6 Kd4 11.Qb6+ Kd5 12.Qxb5+ Kd4 13.Qe2 e4 14.Qb5 Ke3 15.Qf5 Kd4 16.Qf4 Kd5 17.Qf6 Kc4 18.Qd6 e3 19.Qf4+ Kb5 20.Qxe3 Kc6 21.Qe4+ Kc7 22.Qe5+ Kb7 23.Qb5+ Kc7 24.Qd5 Kb6 25.Qd6+ Kb5 26.Kc3 b2 27.Qb8+ Kc6 28.Qa8+ Kd6 29.Qxa2 b1R 30.Qxb1 Kd5 31.Qb5+ Ke6 32.Qe2+ Kf5 33.Kb2 Kf4 34.Qc4+ Ke3 35.Qe6+ Kf4 36.Qd6+ Ke3 37.Qd7 Kf4 38.Qd6+ Ke3
+- (10.87) Depth: 28/77 00:01:17 2847MN, tb=259452
1.Bg7+ Bf6 2.Nc6+ Kf5+ 3.Bxf6 Kxf6 4.Ne5 b5 5.Kb2 e6 6.Ka1 Kxe5 7.h7 Kd4 8.h8Q+ e5 9.Kb2 Kd5 10.Qh6 Kd4 11.Qb6+ Kd5 12.Qxb5+ Kd4 13.Qe2 e4 14.Qb5 Ke3 15.Qf5 Kd4 16.Qf4 Kd3 17.Qf2 Kc4 18.Qf7+ Kc5 19.Qe7+ Kd4 20.Qa7+ Kd3 21.Qa6+ Kd2 22.Qc4 Ke3 23.Qf1 Kd4 24.Qh3 Ke5 25.Qe3 Kd5 26.Qb6 Ke5 27.Qc7+ Kd5 28.Qg3 Kc6 29.Qg6+ Kc5 30.Qxe4 Kb6 31.Qe6+ Kb7 32.Qd5+ Kb8 33.Qd7 Bb1 34.Kxb1 b2 35.Kxb2 Ka8 36.Qc8+ Ka7 37.Qc7+ Ka6 38.Kc3 Kb5 39.Qc4+ Kb6 40.Qf7 Kc5 41.Qg6 Kd5 42.Qh5+ Ke4 43.Qe2+ Kf4 44.Kb3 Kf5 45.Kb2 Kf4 46.Qc4+ Ke3 47.Qe6+ Kf4 48.Qd6+ Ke3 49.Qd7 Kf4 50.Qd6+ Ke3
+- (10.87) Depth: 29/77 00:01:31 3240MN, tb=380410
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tpoppins
Posts: 919
Joined: Tue Nov 24, 2015 9:11 pm
Location: upstate

Re: Stockfish fínds mate in 50

Post by tpoppins »

Karol Majewski wrote:How many cores?
11 @3GHz /8 GB hash /TB probing off
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