it has lost SF15 ability to solve fast some famous positions e.g.
[fen]4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1[/fen]
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8
= (0.00) Depth: 57/27 00:02:10 702mN, tb=107023
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8
= (0.00) Depth: 58/27 00:02:17 741mN, tb=113257
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8 4.Qb7 Qe7 5.Qc8+ Qe8 6.Qxe8+ Rxe8 7.a4 Kf7 8.Be3 Rb8 9.Bd4 Rhc8 10.h4 Nc6 11.Bf2 Ke7 12.b4 Ne5 13.Bd4 Nc6
= (0.00) Depth: 59/27 00:02:43 878mN, tb=167175
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8
= (0.00) Depth: 60/27 00:03:48 1212mN, tb=290004
SF15 solves instantly in every try!
Stockfish 16.10. plays great, but
Moderators: hgm, Dann Corbit, Harvey Williamson
-
Eduard
- Posts: 1304
- Joined: Sat Oct 27, 2018 12:58 am
- Location: Germany
- Full name: Eduard Nemeth
Re: Stockfish 16.10. plays great, but
Hmm, hart to belive it, sorry. My engine with newest Stockfish Patch (161022) finds instantly.
-
Eelco de Groot
- Posts: 4555
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: Stockfish 16.10. plays great, but
You cannot apply razoring to any depth with only an eval condition to limit it and then expect that to be a "nearly non-functional change".Jouni wrote: ↑Mon Oct 17, 2022 8:38 pm it has lost SF15 ability to solve fast some famous positions e.g.
[fen]4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1[/fen]
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8
= (0.00) Depth: 57/27 00:02:10 702mN, tb=107023
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8
= (0.00) Depth: 58/27 00:02:17 741mN, tb=113257
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8 4.Qb7 Qe7 5.Qc8+ Qe8 6.Qxe8+ Rxe8 7.a4 Kf7 8.Be3 Rb8 9.Bd4 Rhc8 10.h4 Nc6 11.Bf2 Ke7 12.b4 Ne5 13.Bd4 Nc6
= (0.00) Depth: 59/27 00:02:43 878mN, tb=167175
1.Qa3 Rxe6 2.Qxa7 Qf7 3.Qb8+ Qe8
= (0.00) Depth: 60/27 00:03:48 1212mN, tb=290004
SF15 solves instantly in every try!
https://github.com/official-stockfish/S ... cefc3ef1fa
Ask any of the senior programmers in this forum what then happens
I am just joking about the certainty but likelihood > 60 % that is what causes this. I suspected this would happen when I saw that patch yesterday And if you go back to the commit just before that, unfortunately I still have no working compiler to make the change in the source myself, sorry but the Dev build from Abrok.eu will have to do:Code: Select all
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - -
Engine: SF 2022101609 Old Razoring (512 MB)
gemaakt door the Stockfish developers (see AUTHORS f
28/09 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (1.347.380) 884
29/11 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (1.553.374) 891
30/08 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Da7 (1.824.438) 890
31/08 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Da7 (2.104.072) 888
32/13 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 De7 5.Db8+ De8 (2.522.165) 888
33/13 0:03 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (3.203.078) 878
34/09 0:04 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (3.771.263) 873
35/10 0:05 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 De7 5.Da8+ (4.596.170) 866
36/10 0:06 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 De7 5.Da8+ (5.383.908) 858
37/13 0:07 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 De7 5.Db8+ De8 (6.321.960) 852
38/13 0:11 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (9.450.400) 829
39/13 0:14 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 De7 5.Dc8+ De8 (11.749.920) 820
40/13 0:18 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 De7 5.Dc8+ De8 (14.825.002) 816
41/13 0:22 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (17.858.012) 810
42/11 0:25 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 De7 5.Dc8+ De8 (20.336.586) 810
43/11 0:27 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (22.599.380) 812
44/09 0:32 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 Df7 (26.154.062) 810
45/09 0:38 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 Df7 (30.539.928) 803
46/09 0:46 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Db7 Df7 (36.851.247) 787
47/09 0:57 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (45.375.875) 791
48/07 1:08 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (53.414.922) 783
49/07 1:20 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (63.196.444) 781
50/07 1:36 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (74.947.725) 775
51/20 3:03 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Dxe8+ Txe8 5.a4 Kf7 6.Le3 Tb8
7.Ld4 Thc8 8.b4 Pc6 9.Lf2 Pe5 10.Ld4 (135.366.677) 738
52/65 4:50 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8
4.Dxe8+ Txe8 5.a4 Kf7 6.Le3 Tb8
7.Ld4 Thc8 8.Kf2 Pc6 9.Le3 Ke7
10.Ke1 Pe5 11.Ld4 Pc6 (209.897.190) 722
53/37 5:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Da8+ De8 (217.812.753) 721
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
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
Eduard
- Posts: 1304
- Joined: Sat Oct 27, 2018 12:58 am
- Location: Germany
- Full name: Eduard Nemeth
Re: Stockfish 16.10. plays great, but
Engine is buggy!
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1
Analysis by Stockfish 171022:
1.Qa3 Rxe6 2.Qxa7 Qe7 3.Qb8+ Qe8 4.Qb7 Qf7 5.Qa6 Qe7 6.Qc8+ Qe8 7.Qxe8+ Rxe8 8.a4 Kf7 9.Be3 Rb8 10.Bd4 Rhc8 11.b4 Nc6 12.Bf2 Ne5 13.Bd4
= (0.00) Depth: 52/19 00:00:24 423MN, tb=61156
The position is equal
Engine with supposedly +5 Elo, and then so weak in tests.
My newest Engine (Patch from 161022, but my own another codes):
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1
Analysis by Solista Modern:
1.Qxe5 fxe5 2.Rf1 Rc8 3.Bd1 Qxe6 4.Bb3 Qxb3 5.axb3 a5 6.Rf6 Rd8 7.Kg2 Re8 8.c4 Rd8 9.h4 Rc8 10.Kf3 Ra8 11.Kf2 Rc8 12.Ke3 Rd8 13.Ke2 Rb8 14.Kd2 Rc8 15.Kd3 Re8 16.Kc3 Ra8 17.b4 a4 18.c5 b5 19.Kd2
+- (5.98 ++) Depth: 32/44 00:00:04 91174kN, tb=3947
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1
Analysis by Stockfish 171022:
1.Qa3 Rxe6 2.Qxa7 Qe7 3.Qb8+ Qe8 4.Qb7 Qf7 5.Qa6 Qe7 6.Qc8+ Qe8 7.Qxe8+ Rxe8 8.a4 Kf7 9.Be3 Rb8 10.Bd4 Rhc8 11.b4 Nc6 12.Bf2 Ne5 13.Bd4
= (0.00) Depth: 52/19 00:00:24 423MN, tb=61156
The position is equal
Engine with supposedly +5 Elo, and then so weak in tests.
My newest Engine (Patch from 161022, but my own another codes):
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1
Analysis by Solista Modern:
1.Qxe5 fxe5 2.Rf1 Rc8 3.Bd1 Qxe6 4.Bb3 Qxb3 5.axb3 a5 6.Rf6 Rd8 7.Kg2 Re8 8.c4 Rd8 9.h4 Rc8 10.Kf3 Ra8 11.Kf2 Rc8 12.Ke3 Rd8 13.Ke2 Rb8 14.Kd2 Rc8 15.Kd3 Re8 16.Kc3 Ra8 17.b4 a4 18.c5 b5 19.Kd2
+- (5.98 ++) Depth: 32/44 00:00:04 91174kN, tb=3947
-
Eelco de Groot
- Posts: 4555
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: Stockfish 16.10. plays great, but
I don't know about buggy, when it is just one testposition, but the razoring patch was not the cause of this, sorry. It must be something earlier. This one, 24 July Dev Stockfish still solves it but I only have three Stockfish versions on my computer so I can not narrow it down any further.
(Nolot position #?: Yuri S. Gusev vs E. Auerbach (1946) 24.Qxe5!)
http://www.chessgames.com/perl/chessgame?gid=1472988
[fen]4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - -[/fen]
(Nolot position #?: Yuri S. Gusev vs E. Auerbach (1946) 24.Qxe5!)
http://www.chessgames.com/perl/chessgame?gid=1472988
[fen]4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - -[/fen]
Code: Select all
Engine: Stockfish 240722 (512 MB)
gemaakt door the Stockfish developers (see AUTHORS f
25/11 0:01 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (1.273.965) 833
26/11 0:01 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (1.557.812) 833
27/09 0:02 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (1.808.854) 832
28/09 0:02 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (2.065.128) 830
29/32 0:03 +0.63 1.Dxe5 fxe5 2.Tf1 Tc8 3.Ld1 b5 4.Lb3 Tc4
5.a4 a6 6.Kg2 Da8 7.Kg3 De8 8.Tf6 De7
9.Tf2 De8 10.h4 De7 11.Kg2 De8
12.Tf3 De7 13.axb5 axb5 (2.615.250) 842
30/29 0:03 +0.83++ 1.Dxe5 (2.677.593) 842
30/29 0:03 +0.91++ 1.Dxe5 (2.751.460) 843
30/34 0:03 +1.02++ 1.Dxe5 (2.785.810) 844
30/34 0:03 +1.16++ 1.Dxe5 (2.828.152) 845
30/34 0:03 +1.35++ 1.Dxe5 (2.863.850) 846
30/35 0:03 +1.59++ 1.Dxe5 (2.893.981) 848
30/35 0:03 +1.12 1.Dxe5 fxe5 2.Tf1 Tc8 3.Ld1 b5 4.Lb3 Tc4
5.a4 a6 6.Kg2 De7 7.Kg3 De8 8.Tf6 De7
9.Tf2 De8 10.h4 De7 11.Kg2 De8
12.Tf1 Da8 13.Kh3 De8 14.Kg3 (2.994.275) 847
31/32 0:03 +1.15-- 1.Dxe5 fxe5 (3.157.264) 839
31/32 0:03 +1.24++ 1.Dxe5 (3.273.220) 837
31/32 0:03 +1.36++ 1.Dxe5 (3.323.219) 839
31/32 0:04 +1.52++ 1.Dxe5 (3.394.384) 839
31/41 0:04 +1.73++ 1.Dxe5 (3.469.189) 841
31/41 0:04 +1.99++ 1.Dxe5 (3.557.892) 842
31/41 0:04 +2.33++ 1.Dxe5 (3.669.047) 843
31/41 0:04 +2.75++ 1.Dxe5 (3.897.853) 844
31/41 0:05 +3.30++ 1.Dxe5 (4.769.303) 843
31/41 0:05 +3.28 1.Dxe5 fxe5 2.Tf1 Tc8 3.Ld1 b5 4.Lb3 Tc4
5.a4 a6 6.Kg2 De7 7.Kg3 De8 8.h4 De7
9.Tf3 De8 10.Tf2 De7 11.Kg2 Dd8
12.axb5 axb5 13.Tf7 De8 14.Lxc4 (4.796.861) 844
32/39 0:06 +3.39++ 1.Dxe5 (5.742.453) 846
32/44 0:07 +3.58++ 1.Dxe5 (6.738.742) 846
32/49 0:10 +3.82++ 1.Dxe5 (9.021.274) 873
32/49 0:10 +3.82 1.Dxe5 (9.619.348) 882
beste zet: Dd6xe5 tijd: 0:11.000 min n/s: 882.185 nodes: 9.619.348Debugging 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
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
Eelco de Groot
- Posts: 4555
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: Stockfish 16.10. plays great, but
Stockfish 2022092705
Author: mstembera
Date: Tue Sep 27 07:44:46 2022 +0200
Timestamp: 1664257486
Simplify EVASIONS scoring
remove some multipliers & adjust, doesn't change the move ordering
still solves it but is a bit slower:
Stockfish 2022100309 does not solve it anymore:
This seems, to me, to be the first functional change that does not solve it anymore, this is also from 27 sept but later;
Author: peregrineshahin
Date: Tue Sep 27 07:54:36 2022 +0200
Timestamp: 1664258076
Simplify both position calls in useClassical
Simplify the use of classical evaluation when using default settings to only be dependent on piece count and decisive PSQ
I did not test the Brad Knox and Torsten Hellwig changes as that seemed nonfunctional changes after the mstembera patch, which by itself also did not change the bench from the mstembera patch before it, but the peregrine shahin is the first functional change that does not solve the (difficult) Nolot.
Author: mstembera
Date: Tue Sep 27 07:44:46 2022 +0200
Timestamp: 1664257486
Simplify EVASIONS scoring
remove some multipliers & adjust, doesn't change the move ordering
still solves it but is a bit slower:
Code: Select all
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - -
Engine: SF 2022092705 (512 MB)
gemaakt door the Stockfish developers (see AUTHORS f
28/11 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (1.153.861) 804
29/11 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (1.326.004) 804
30/11 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Dc7 Df7 (1.389.949) 810
31/11 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Dc7 Df7 (1.564.628) 820
32/11 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (1.849.077) 829
33/08 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Da7 (2.314.383) 820
34/07 0:03 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (2.787.409) 799
35/12 0:05 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 6.Db7 (4.069.148) 792
36/11 0:06 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (5.371.303) 796
37/07 0:07 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (5.683.136) 801
38/08 0:08 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Da7 (6.805.284) 808
39/08 0:08 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Da7 (7.150.272) 812
40/07 0:09 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (7.773.744) 816
41/16 0:15 +0.05++ 1.Dxe5 (12.594.864) 806
41/16 0:15 +0.10++ 1.Dxe5 (12.694.247) 807
41/16 0:15 +0.16++ 1.Dxe5 (12.777.243) 809
41/16 0:15 +0.25++ 1.Dxe5 (12.845.983) 810
41/16 0:15 +0.37++ 1.Dxe5 (12.888.565) 810
41/16 0:15 +0.53++ 1.Dxe5 (12.924.674) 811
41/16 0:15 +0.74++ 1.Dxe5 (12.970.542) 812
41/16 0:16 +1.00++ 1.Dxe5 (13.020.636) 812
41/35 0:16 +0.28 1.Dxe5 fxe5 2.Tf1 De7 3.Ld1 Tc4
4.Lb3 b5 5.Kg2 a6 6.h4 De8 7.a4 De7
8.axb5 axb5 9.Tf2 De8 10.Kg3 De7
11.Tf3 Dd6 (13.212.693) 814
42/26 0:16 +0.53++ 1.Dxe5 (13.546.392) 815
42/27 0:16 +0.58++ 1.Dxe5 (13.716.301) 817
42/28 0:16 +0.64++ 1.Dxe5 (13.817.343) 818
42/28 0:16 +0.74++ 1.Dxe5 (13.887.167) 819
42/28 0:17 +0.86++ 1.Dxe5 (13.951.103) 820
42/28 0:17 +1.01++ 1.Dxe5 (14.023.531) 821
42/28 0:17 +1.22++ 1.Dxe5 (14.088.201) 822
42/28 0:17 +1.49++ 1.Dxe5 (14.153.510) 823
42/28 0:17 +1.82++ 1.Dxe5 (14.245.832) 824
42/41 0:18 +2.25++ 1.Dxe5 (14.981.136) 829
42/44 0:19 +2.79++ 1.Dxe5 (15.974.483) 837
42/46 0:19 +2.79 1.Dxe5 fxe5 2.Tf1 De7 3.Ld1 Tc4
4.Lb3 b5 5.Kg2 a6 6.h4 De8 7.a4 Da8
8.Kh2 De8 9.Kg1 De7 10.Kg2 Dd8
11.Tf7 g5 12.Tf1 De7 13.hxg5 Dd6
14.Tf3 (16.295.481) 841
43/50 0:20 +2.85++ 1.Dxe5 (17.307.790) 845
43/50 0:21 +3.00++ 1.Dxe5 (17.883.499) 850
43/50 0:21 +3.18++ 1.Dxe5 (18.290.340) 853
43/50 0:21 +3.42++ 1.Dxe5 (18.700.265) 857
43/50 0:22 +3.73++ 1.Dxe5 (19.223.107) 862
43/50 0:22 +3.73 1.Dxe5 (19.932.465) 867
beste zet: Dd6xe5 tijd: 0:23.125 min n/s: 867.571 nodes: 19.932.465
Code: Select all
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - -
Engine: SF 2022100309 (512 MB)
gemaakt door the Stockfish developers (see AUTHORS f
28/09 0:01 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (1.341.353) 877
29/12 0:01 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Dc7 Df7 5.Dd8+ De8 6.Dc7 (1.637.357) 876
30/11 0:02 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (1.925.468) 881
31/07 0:02 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (2.143.816) 884
32/08 0:02 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Da7 (2.336.603) 887
33/10 0:03 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 5.Db8+ (2.884.368) 880
34/10 0:04 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 5.Db8+ (3.593.464) 875
35/09 0:04 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (3.990.998) 879
36/09 0:05 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (5.089.153) 867
37/09 0:07 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (6.515.571) 838
38/09 0:10 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (8.869.041) 829
39/09 0:12 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (10.250.248) 823
40/09 0:14 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (12.133.622) 825
41/09 0:16 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (13.387.292) 830
42/09 0:19 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (16.392.737) 826
43/09 0:25 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (20.853.007) 825
44/11 0:28 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (23.239.241) 829
45/09 0:36 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (29.982.294) 818
46/09 0:40 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (32.998.912) 822
47/09 0:47 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (39.015.703) 820
48/09 0:58 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (47.735.339) 821
49/12 1:37 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (77.550.143) 798
50/27 1:41 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 5.Dc8+ De8 (81.264.289) 800
51/51 1:56 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (93.478.067) 798
52/23 2:29 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8 (117.793.021) 786
53/09 2:49 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (132.918.888) 786
54/09 3:13 0.00 1.Da3 Txe6 2.Dxa7 De7 3.Db8+ De8
4.Db7 De7 (151.329.172) 782
Author: peregrineshahin
Date: Tue Sep 27 07:54:36 2022 +0200
Timestamp: 1664258076
Simplify both position calls in useClassical
Simplify the use of classical evaluation when using default settings to only be dependent on piece count and decisive PSQ
Code: Select all
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - -
Engine: SF 2022092705 Simplification patch (512 MB)
gemaakt door the Stockfish developers (see AUTHORS f
28/13 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 Df7 (1.342.131) 856
29/13 0:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (1.705.025) 856
30/11 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (1.896.493) 853
31/11 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 (2.124.740) 855
32/11 0:02 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 (2.338.722) 857
33/11 0:03 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 (2.672.704) 854
34/11 0:03 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 (3.011.183) 860
35/12 0:04 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 6.Da7 (3.435.511) 858
36/11 0:04 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (4.125.772) 858
37/09 0:05 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (5.009.639) 850
38/11 0:06 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 (5.835.833) 849
39/11 0:07 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (6.721.666) 850
40/12 0:10 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Dc8+ De8 6.Dc7 (8.873.499) 844
41/11 0:11 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (9.956.979) 845
42/12 0:14 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Dc8+ De8 6.Db7 (12.537.516) 839
43/45 0:23 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Dc8+ De8 6.Dxe8+ Txe8
7.a4 Kf7 8.Le3 Tb8 9.Ld4 Thc8 10.b4 Pc6
11.Lf2 Pe5 12.Ld4 (19.623.986) 818
44/50 0:31 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Dc8+ De8 6.Dxe8+ Txe8
7.a4 Kf7 8.Le3 Tb8 9.Ld4 Thc8 10.b4 Pc6
11.Lf2 Pe5 12.Ld4 (25.727.967) 813
45/34 0:39 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Dc8+ De8 6.Dxe8+ Txe8
7.a4 Kf7 8.Le3 Tb8 9.Ld4 Thc8 10.b4 Pc6
11.Le3 Ke7 12.h4 Pe5 13.Ld4 Pc6 (31.967.998) 809
46/32 0:43 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Dc8+ De8 (35.520.656) 811
47/32 0:48 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (39.109.864) 811
48/12 0:53 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Da8+ De8 6.Db7 (43.546.000) 813
49/11 1:14 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (59.803.625) 803
50/10 1:25 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 De7 5.Db8+ (68.633.587) 801
51/09 1:32 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (74.718.693) 803
52/11 2:01 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (96.967.059) 796
53/23 2:25 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (114.907.791) 792
54/11 3:29 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (163.082.315) 777
55/34 4:46 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (220.745.883) 769
56/52 7:35 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 Df7 (343.466.441) 754
57/37 8:24 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 Df7 (380.316.118) 753
58/37 10:37 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8
4.Db7 Df7 5.Dc8+ De8 (480.270.675) 753
59/11 12:48 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (578.618.110) 752
60/09 14:27 0.00 1.Da3 Txe6 2.Dxa7 Df7 3.Db8+ De8 (654.151.136) 754
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
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
Uri Blass
- Posts: 10098
- Joined: Thu Mar 09, 2006 12:37 am
- Location: Tel-Aviv Israel
Re: Stockfish 16.10. plays great, but
Here is another test position that stockfish15 with 7 cores could solve after some minutes and I wait to see if stockfish can see a mate score when
I guess latest version is going to fail
[fen]1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - 0 1[/fen]
Stockfish_15_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-6877cd24400e.nnue enabled
1/1 00:00 467 467k +21.25 Ra4-e4+ Qc1-e3 Re4xe3+ Ke1-d1 g6xf7
2/2 00:00 1k 531k +21.25 Ra4-e4+ Qc1-e3 Re4xe3+ Ke1-d1 g6xf7
3/3 00:00 2k 787k +18.19 Rb8xf8 h6xg5 Qh7xg7
4/4 00:00 2k 945k +18.19 Rb8xf8 h6xg5 Qh7xg7 g5xh4 g6xf7
5/5 00:00 6k 3,190k +15.61 Ra4-e4+ Ke1-d1 Rb8-d8+ Kd1-c2 Rd8xf8 Qc1-d2+ Kh2-g3
6/6 00:00 23k 4,612k +4.36 Rb8xf8 Qc1-b2+ Kh2-g1 Qb2-f2+ Kg1-h1 Qf2-f1+ Kh1-h2
7/7 00:00 25k 5,071k +7.45 g6xf7 Bf8-d6+ Kh2-h3 Qc1-e3+ Kh3-g4
8/10 00:00 31k 5,197k +6.22 g6xf7 Bf8-d6+ Kh2-h3 Qc1-e3+ Kh3-g4 Qe3-e2+ Kg4-f5 Bd6xb8 f7-f8Q Qe2-f2+ Kf5-g4 Qf2xf8
9/13 00:00 114k 6,692k +1.62 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-f4 Qb3xa4+ Kf4-e3
10/14 00:00 225k 7,018k +0.58 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-f4 Qc5-f2+ Kf4-e4 Qf2-c2+ Ke4-d4 Qc2xa4+ Rb6-b4 Bf8xb4 a3xb4 Qa4xb4+ Kd4-d5
11/17 00:00 302k 7,181k +0.51 Rb8-b6 Qc1-d2+ Kh2-g3 Qd2-e3+ Kg3-g4 Qe3-g1+ Kg4-f3 Qg1-f2+ Kf3-e4 Qf2-c2+ Ke4-d4 Qc2xa4+ Kd4-d5 Qa4-a5+ Kd5-c6
12/18 00:00 390k 6,966k +0.07 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-e4 Qc5xb6 Ra4-c4 Qb6-e6+ Ke4-d4
13/12 00:00 427k 7,000k 0.00 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-f4 Qc5-f2+ Kf4-g4
14/10 00:00 458k 6,938k 0.00 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-g4
15/10 00:00 491k 7,010k 0.00 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f4 Qg1-f2+ Kf4-g4
16/17 00:00 550k 7,056k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
17/20 00:00 562k 7,020k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
18/20 00:00 590k 7,108k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
19/20 00:00 621k 7,054k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
20/20 00:00 764k 6,878k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
21/21 00:00 825k 6,822k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
22/22 00:00 962k 6,821k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
23/20 00:00 1,188k 6,904k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
24/29 00:00 1,257k 6,833k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-d5+ Kb5-b4 Qd5-d4+ Kb4-b3 Qd4-d3+ Kb3-b2 Qd3-d2+ Kb2-b1 Qd2-d3+
25/27 00:00 1,339k 6,834k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
26/29 00:00 1,693k 6,884k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-d5+ Kb5-b4 Qd5-d4+ Kb4-b3 Qd4-d3+ Kb3-b2 Qd3-d2+ Kb2-b1 Qd2-d3+
27/31 00:00 1,876k 6,897k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-b3+ Kb5-a5 Qb3-d5+ Ka5-b4 Qd5-d6+ Kb4-c3 Qd6-c5+ Kc3-b2 Qc5-e5+ Kb2-a2 Qe5-e6+ Ka2-a1 Qe6-e5+
28/32 00:00 1,942k 6,886k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-b3+ Kb5-a5 Qb3-d5+ Ka5-b4 Qd5-d6+ Kb4-c3 Qd6-c5+ Kc3-b2 Qc5-e5+ Kb2-a2 Qe5-e6+ Ka2-a1 Qe6-e5+ Ka1-b1
29/24 00:00 2,478k 6,960k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
30/23 00:00 3,314k 7,143k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
31/26 00:00 3,626k 7,181k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
32/34 00:00 3,921k 7,222k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-c6+ Kc4-d3 Qc6-d5+ Kd3-c3 Qd5-c5+ Kc3-b2 Qc5-e5+ Kb2-a2 Qe5-e2+ Ka2-b1 Qe2-b5+ Kb1-c2 Qb5-c4+ Kc2-b2 Qc4-b5+
33/26 00:00 4,542k 7,302k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
34/43 00:00 5,459k 7,437k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-c6+ Kc4-d3 Qc6-d5+ Kd3-c3 Qd5-c5+ Kc3-b2 Qc5-b5+ Kb2-a1 Qb5-e5+ Ka1-b1 Qe5-f5+ Kb1-a1
35/28 00:00 6,193k 7,534k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
36/27 00:00 6,735k 7,533k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
37/17 00:01 7,908k 7,670k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
38/25 00:01 9,647k 7,596k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
39/29 00:01 11,550k 7,466k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
40/31 00:01 12,846k 7,442k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
41/31 00:02 15,707k 7,618k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
42/32 00:02 19,487k 7,509k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
43/29 00:03 22,655k 7,467k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b3+ Kd5-d6 Qb3-e6+ Kd6-c5 Qe6-e5+ Kc5-c6 Qe5-e6+
44/29 00:03 26,942k 7,426k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
45/42 00:04 34,087k 7,447k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b3+ Kd5-d6 Qb3-e6+ Kd6-c7 Qe6-e5+ Kc7-c8 Qe5-f5+ Kc8-b8 Qf5-b5+ Kb8-a7 Qb5-a5+ Ka7-b7 Qa5-d5+ Kb7-b6 Qd5-e6+ Kb6-a5 Qe6-d5+ Ka5-b4 Qd5-d2+ Kb4-c5 Qd2-e3+ Kc5-c4 Qe3-e4+ Kc4-c3 Qe4-e5+ Kc3-b4 Qe5-f4+ Kb4-b5 Qf4-f5+ Kb5-b6
46/25 00:05 41,572k 7,556k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b3+ Kd5-d6 Qb3-e6+ Kd6-c7 Qe6-e5+ Kc7-c8 Qe5-f5+ Kc8-b8 Qf5-b5+ Kb8-a7 Qb5-a5+ Ka7-b7 Qa5-b5+
47/31 00:06 46,750k 7,535k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
48/31 00:06 51,618k 7,537k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
49/29 00:09 69,219k 7,453k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
50/27 00:12 92,680k 7,472k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
51/27 00:13 103,667k 7,465k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
52/27 00:16 124,674k 7,505k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
53/33 00:20 152,957k 7,605k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
54/36 00:28 214,970k 7,666k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-e5 Qa4-a5+ Ke5-d6 Qa5-a6+ Kd6-d7 Qa6-e6+ Kd7-c7 Qe6-e5+ Kc7-b6 Qe5-e3+ Kb6-a6 Qe3-e6+ Ka6-a5 Qe6-d5+ Ka5-b4 Qd5-d4+ Kb4-b5 Qd4-d3+ Kb5-c5 Qd3-f5+ Kc5-b6 Qf5-e6+ Kb6-a7
55/21 00:30 236,361k 7,626k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
56/21 00:33 254,988k 7,565k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
57/37 00:39 300,114k 7,563k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
58/29 00:56 433,183k 7,645k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
59/25 01:08 530,572k 7,702k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
60/25 01:16 591,054k 7,718k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
61/44+ 01:53 853,574k 7,533k +0.08 Rb8-b1
61/44+ 01:55 868,782k 7,527k +0.15 Rb8-b1
61/44+ 13:23 7,376,040k 9,175k +23.33 Rb8-b1
I guess latest version is going to fail
[fen]1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - 0 1[/fen]
Stockfish_15_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-6877cd24400e.nnue enabled
1/1 00:00 467 467k +21.25 Ra4-e4+ Qc1-e3 Re4xe3+ Ke1-d1 g6xf7
2/2 00:00 1k 531k +21.25 Ra4-e4+ Qc1-e3 Re4xe3+ Ke1-d1 g6xf7
3/3 00:00 2k 787k +18.19 Rb8xf8 h6xg5 Qh7xg7
4/4 00:00 2k 945k +18.19 Rb8xf8 h6xg5 Qh7xg7 g5xh4 g6xf7
5/5 00:00 6k 3,190k +15.61 Ra4-e4+ Ke1-d1 Rb8-d8+ Kd1-c2 Rd8xf8 Qc1-d2+ Kh2-g3
6/6 00:00 23k 4,612k +4.36 Rb8xf8 Qc1-b2+ Kh2-g1 Qb2-f2+ Kg1-h1 Qf2-f1+ Kh1-h2
7/7 00:00 25k 5,071k +7.45 g6xf7 Bf8-d6+ Kh2-h3 Qc1-e3+ Kh3-g4
8/10 00:00 31k 5,197k +6.22 g6xf7 Bf8-d6+ Kh2-h3 Qc1-e3+ Kh3-g4 Qe3-e2+ Kg4-f5 Bd6xb8 f7-f8Q Qe2-f2+ Kf5-g4 Qf2xf8
9/13 00:00 114k 6,692k +1.62 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-f4 Qb3xa4+ Kf4-e3
10/14 00:00 225k 7,018k +0.58 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-f4 Qc5-f2+ Kf4-e4 Qf2-c2+ Ke4-d4 Qc2xa4+ Rb6-b4 Bf8xb4 a3xb4 Qa4xb4+ Kd4-d5
11/17 00:00 302k 7,181k +0.51 Rb8-b6 Qc1-d2+ Kh2-g3 Qd2-e3+ Kg3-g4 Qe3-g1+ Kg4-f3 Qg1-f2+ Kf3-e4 Qf2-c2+ Ke4-d4 Qc2xa4+ Kd4-d5 Qa4-a5+ Kd5-c6
12/18 00:00 390k 6,966k +0.07 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-e4 Qc5xb6 Ra4-c4 Qb6-e6+ Ke4-d4
13/12 00:00 427k 7,000k 0.00 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-f4 Qc5-f2+ Kf4-g4
14/10 00:00 458k 6,938k 0.00 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f5 Qg1-c5+ Kf5-g4
15/10 00:00 491k 7,010k 0.00 Rb8-b6 Qc1-d2+ Kh2-h3 Qd2-e3+ Kh3-g4 Qe3-g1+ Kg4-f4 Qg1-f2+ Kf4-g4
16/17 00:00 550k 7,056k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
17/20 00:00 562k 7,020k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
18/20 00:00 590k 7,108k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
19/20 00:00 621k 7,054k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
20/20 00:00 764k 6,878k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
21/21 00:00 825k 6,822k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
22/22 00:00 962k 6,821k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
23/20 00:00 1,188k 6,904k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
24/29 00:00 1,257k 6,833k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-d5+ Kb5-b4 Qd5-d4+ Kb4-b3 Qd4-d3+ Kb3-b2 Qd3-d2+ Kb2-b1 Qd2-d3+
25/27 00:00 1,339k 6,834k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
26/29 00:00 1,693k 6,884k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-d5+ Kb5-b4 Qd5-d4+ Kb4-b3 Qd4-d3+ Kb3-b2 Qd3-d2+ Kb2-b1 Qd2-d3+
27/31 00:00 1,876k 6,897k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-b3+ Kb5-a5 Qb3-d5+ Ka5-b4 Qd5-d6+ Kb4-c3 Qd6-c5+ Kc3-b2 Qc5-e5+ Kb2-a2 Qe5-e6+ Ka2-a1 Qe6-e5+
28/32 00:00 1,942k 6,886k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-e6+ Kc4-b5 Qe6-b3+ Kb5-a5 Qb3-d5+ Ka5-b4 Qd5-d6+ Kb4-c3 Qd6-c5+ Kc3-b2 Qc5-e5+ Kb2-a2 Qe5-e6+ Ka2-a1 Qe6-e5+ Ka1-b1
29/24 00:00 2,478k 6,960k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
30/23 00:00 3,314k 7,143k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
31/26 00:00 3,626k 7,181k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
32/34 00:00 3,921k 7,222k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-c6+ Kc4-d3 Qc6-d5+ Kd3-c3 Qd5-c5+ Kc3-b2 Qc5-e5+ Kb2-a2 Qe5-e2+ Ka2-b1 Qe2-b5+ Kb1-c2 Qb5-c4+ Kc2-b2 Qc4-b5+
33/26 00:00 4,542k 7,302k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
34/43 00:00 5,459k 7,437k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b5+ Kd5-d4 Qb5-b6+ Kd4-c4 Qb6-c6+ Kc4-d3 Qc6-d5+ Kd3-c3 Qd5-c5+ Kc3-b2 Qc5-b5+ Kb2-a1 Qb5-e5+ Ka1-b1 Qe5-f5+ Kb1-a1
35/28 00:00 6,193k 7,534k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
36/27 00:00 6,735k 7,533k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
37/17 00:01 7,908k 7,670k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
38/25 00:01 9,647k 7,596k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
39/29 00:01 11,550k 7,466k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
40/31 00:01 12,846k 7,442k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
41/31 00:02 15,707k 7,618k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
42/32 00:02 19,487k 7,509k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
43/29 00:03 22,655k 7,467k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b3+ Kd5-d6 Qb3-e6+ Kd6-c5 Qe6-e5+ Kc5-c6 Qe5-e6+
44/29 00:03 26,942k 7,426k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
45/42 00:04 34,087k 7,447k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b3+ Kd5-d6 Qb3-e6+ Kd6-c7 Qe6-e5+ Kc7-c8 Qe5-f5+ Kc8-b8 Qf5-b5+ Kb8-a7 Qb5-a5+ Ka7-b7 Qa5-d5+ Kb7-b6 Qd5-e6+ Kb6-a5 Qe6-d5+ Ka5-b4 Qd5-d2+ Kb4-c5 Qd2-e3+ Kc5-c4 Qe3-e4+ Kc4-c3 Qe4-e5+ Kc3-b4 Qe5-f4+ Kb4-b5 Qf4-f5+ Kb5-b6
46/25 00:05 41,572k 7,556k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-d5 Qa4-b3+ Kd5-d6 Qb3-e6+ Kd6-c7 Qe6-e5+ Kc7-c8 Qe5-f5+ Kc8-b8 Qf5-b5+ Kb8-a7 Qb5-a5+ Ka7-b7 Qa5-b5+
47/31 00:06 46,750k 7,535k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
48/31 00:06 51,618k 7,537k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
49/29 00:09 69,219k 7,453k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
50/27 00:12 92,680k 7,472k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
51/27 00:13 103,667k 7,465k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
52/27 00:16 124,674k 7,505k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
53/33 00:20 152,957k 7,605k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
54/36 00:28 214,970k 7,666k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+ Kf3-e4 Qb3xa4+ Ke4-e5 Qa4-a5+ Ke5-d6 Qa5-a6+ Kd6-d7 Qa6-e6+ Kd7-c7 Qe6-e5+ Kc7-b6 Qe5-e3+ Kb6-a6 Qe3-e6+ Ka6-a5 Qe6-d5+ Ka5-b4 Qd5-d4+ Kb4-b5 Qd4-d3+ Kb5-c5 Qd3-f5+ Kc5-b6 Qf5-e6+ Kb6-a7
55/21 00:30 236,361k 7,626k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
56/21 00:33 254,988k 7,565k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
57/37 00:39 300,114k 7,563k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
58/29 00:56 433,183k 7,645k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+ Kg2-f3 Qb2-b3+
59/25 01:08 530,572k 7,702k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
60/25 01:16 591,054k 7,718k 0.00 Rb8xf8 Qc1-b2+ Kh2-h3 Qb2-b3+ Kh3-g2 Qb3-b2+
61/44+ 01:53 853,574k 7,533k +0.08 Rb8-b1
61/44+ 01:55 868,782k 7,527k +0.15 Rb8-b1
61/44+ 13:23 7,376,040k 9,175k +23.33 Rb8-b1
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Uri Blass
- Posts: 10098
- Joined: Thu Mar 09, 2006 12:37 am
- Location: Tel-Aviv Israel
Re: Stockfish 16.10. plays great, but
Stockfish15 did not see a mate score at depth 61 and could only see advantage of 58.14 pawns
This is a study by Y.Hoch and H.Aloni that was outside of the scope of engines in the past.
FEN: 1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - 0 1
Stockfish_15_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-6877cd24400e.nnue enabled
61/51+ 48:03 26,807,560k 9,297k +58.14 Rb8-b1
61/51 52:08 29,230,371k 9,345k +58.14 Rb8-b1 Qc1xb1 g6xf7 Qb1xh7 g5-g6 Qh7-h8 Ra4-e4+ Ke1-d2 Re4-e8 Kd2-d3 Kh2-h1 Kd3-c4 a3-a4 Kc4-c5 a4-a5 Kc5-b5 Re8-a8 Kb5-a4 Kh1-g2 Ka4-b4 a5-a6 Kb4-b5 Kg2-f3 Kb5-a5 Kf3-e4 Ka5-b4 Ra8-d8 Bf8-d6 Rd8xh8 Bd6-c5 f7-f8R Kb4-c3 Rf8-f7 Bc5-b4 Rf7-c7+ Kc3-b2 Rc7xg7 Bb4-c3 a6-a7
This is a study by Y.Hoch and H.Aloni that was outside of the scope of engines in the past.
FEN: 1R3b2/5ppQ/6Pp/6PP/R6P/P7/7K/2q1k3 w - - 0 1
Stockfish_15_x64_avx2:
Found 145 tablebases
NNUE evaluation using nn-6877cd24400e.nnue enabled
61/51+ 48:03 26,807,560k 9,297k +58.14 Rb8-b1
61/51 52:08 29,230,371k 9,345k +58.14 Rb8-b1 Qc1xb1 g6xf7 Qb1xh7 g5-g6 Qh7-h8 Ra4-e4+ Ke1-d2 Re4-e8 Kd2-d3 Kh2-h1 Kd3-c4 a3-a4 Kc4-c5 a4-a5 Kc5-b5 Re8-a8 Kb5-a4 Kh1-g2 Ka4-b4 a5-a6 Kb4-b5 Kg2-f3 Kb5-a5 Kf3-e4 Ka5-b4 Ra8-d8 Bf8-d6 Rd8xh8 Bd6-c5 f7-f8R Kb4-c3 Rf8-f7 Bc5-b4 Rf7-c7+ Kc3-b2 Rc7xg7 Bb4-c3 a6-a7
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peter
- Posts: 3167
- Joined: Sat Feb 16, 2008 7:38 am
- Full name: Peter Martan
Re: Stockfish 16.10. plays great, but
But so did SF 110922 too at three trials of mine at 30 threads of 16x3.5GHz CPU and 8G hash:
Gusev,Yuri - Auerbach,E., Molniya 1946
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1
Analysis by Stockfish 110922:
Code: Select all
24.Dd5 Txe6
Weiß steht besser: +/- (0.91) Tiefe: 1/1 00:00:01 1794Knoten
24.Da3 g5
Die Stellung ist ausgeglichen: = (0.02) Tiefe: 2/2 00:00:01 9501Knoten
24.Dd5 Txe6 25.Td1
Weiß steht deutlich besser: +- (2.40) Tiefe: 3/3 00:00:01 13kN
...
24.Da3 Txe6 25.Dxa7 De7 26.Db8+ De8 27.Db7 De7 28.Dc8+ De8 29.Db7
Die Stellung ist ausgeglichen: = (0.00) Tiefe: 30/11 00:00:01 11180kN, tb=66
24.Dxe5 fxe5 25.Tf1 Tc7 26.Ld1 b5 27.Lb3 Tc4 28.Kg2 a6 29.Kg3 De7 30.h4 De8 31.a4 De7 32.axb5 axb5 33.Kg2 De8 34.Tf2 De7 35.Tf3 De8 36.La2 De7 37.Tf1 De8
Weiß steht deutlich besser: +- (1.78) Tiefe: 31/37 00:00:01 18044kN, tb=72
24.Dxe5 fxe5 25.Tf1 a6 26.Ld1 b5 27.Lb3 Tc4 28.Kg2 De7 29.Kg3 Dd8 30.Tf7 De8 31.Tf3 De7 32.a4 De8 33.Tf6 De7 34.Tf2 De8 35.Kg2 De7 36.Tf3 De8 37.h4 De7 38.Tf2 De8 39.Kg3 De7
Weiß steht deutlich besser: +- (2.29) Tiefe: 32/44 00:00:02 26639kN, tb=72
24.Dxe5 fxe5 25.Tf1 a6 26.Ld1 b5 27.Kg2 De7 28.Lb3 Tc4 29.Kg3 De8 30.Tf3 De7 31.a4 De8 32.Tf1 De7 33.Tf2 De8 34.Tf3 De7 35.h4 Dc5 36.Kg2 De7 37.La2 g5 38.hxg5 Dd8 39.Lb3 De8 40.Kf2
Weiß steht klar auf Gewinn: +- (4.40) Tiefe: 33/46 00:00:02 52907kN, tb=175
...
24.Dxe5 fxe5 25.Tf1 Tc8 26.Ld1 Dxe6 27.Lb3 Dxb3 28.axb3 a5 29.Tf6 Td8 30.Kf2 Tb8 31.Kf3 Te8 32.h4 Td8 33.Ke3 Tc8 34.Kf2 Ta8 35.Ke2 Td8 36.Kf3 Tb8 37.c4 Tc8 38.Ke3 Ta8 39.Kd2 Td8+ 40.Kc3 Te8 41.b4 Tc8 42.Kb3 a4+ 43.Kxa4 g5 44.hxg5 b5+ 45.Kxb5 Tc5+ 46.Ka6 Ta5+ 47.Kb7
Weiß steht klar auf Gewinn: +- (8.35) Tiefe: 36/65 00:00:08 262MN, tb=90523Peter.
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Jouni
- Posts: 3227
- Joined: Wed Mar 08, 2006 8:15 pm
Re: Stockfish 16.10. plays great, but
Another example
[fen]1q1k4/1n1p1b2/p1pPp1p1/r1P1PpPp/p1P2P1N/P1QK4/8/4B3 w - - 0 1[/fen]
SF15 solves instantly dev version has no idea
Analysis by Stockfish 161022:
...
1.Ke2 Rxc5 2.Bf2 Qa7 3.Qb2 a5 4.Nf3 Kc8 5.Nd2 Qa6 6.Ke1 h4 7.Qc3 h3 8.Qxh3 Rxc4 9.Nxc4 Qxc4 10.Qe3 c5 11.Qd2 Kb8 12.Be3 Ka7 13.Kf2 Kb6 14.Kg3 Qb3 15.Qc1 Kb5 16.Kh4 Be8 17.Bf2 Qd3 18.Qb2+ Kc6 19.Be3 Nd8 20.Qc1 Kd5 21.Qh1+ Kc4 22.Qc1+ Kb3 23.Qxc5 Nc6 24.Kg3 Qc3 25.Qxc3+ Kxc3
-+ (-7.01) Depth: 37/58 00:02:54 1009mN, tb=2003
1.Qb4 Kc8 2.Bf2 Qa7 3.Nf3 Rxc5 4.Ke2 a5 5.Qxa4 Qa6 6.Nd2 Rd5 7.Nf3 h4 8.Qc2 a4 9.Ke1 Ra5 10.Bxh4 c5 11.Kf1 Qc6 12.Qc3 Ra8 13.Bf2 Na5 14.Kg1 Nb3 15.Ne1 Kb7 16.Nf3 Qe4 17.Kg2 Kc8 18.Be3 Ra6 19.Kf2 Rb6 20.Kg3 Qc6 21.Bf2 Kb7
-+ (-7.22) Depth: 38/58 00:03:44 1282mN, tb=2192
Before patch is accepted some test suites must be run!?
[fen]1q1k4/1n1p1b2/p1pPp1p1/r1P1PpPp/p1P2P1N/P1QK4/8/4B3 w - - 0 1[/fen]
SF15 solves instantly dev version has no idea
Analysis by Stockfish 161022:
...
1.Ke2 Rxc5 2.Bf2 Qa7 3.Qb2 a5 4.Nf3 Kc8 5.Nd2 Qa6 6.Ke1 h4 7.Qc3 h3 8.Qxh3 Rxc4 9.Nxc4 Qxc4 10.Qe3 c5 11.Qd2 Kb8 12.Be3 Ka7 13.Kf2 Kb6 14.Kg3 Qb3 15.Qc1 Kb5 16.Kh4 Be8 17.Bf2 Qd3 18.Qb2+ Kc6 19.Be3 Nd8 20.Qc1 Kd5 21.Qh1+ Kc4 22.Qc1+ Kb3 23.Qxc5 Nc6 24.Kg3 Qc3 25.Qxc3+ Kxc3
-+ (-7.01) Depth: 37/58 00:02:54 1009mN, tb=2003
1.Qb4 Kc8 2.Bf2 Qa7 3.Nf3 Rxc5 4.Ke2 a5 5.Qxa4 Qa6 6.Nd2 Rd5 7.Nf3 h4 8.Qc2 a4 9.Ke1 Ra5 10.Bxh4 c5 11.Kf1 Qc6 12.Qc3 Ra8 13.Bf2 Na5 14.Kg1 Nb3 15.Ne1 Kb7 16.Nf3 Qe4 17.Kg2 Kc8 18.Be3 Ra6 19.Kf2 Rb6 20.Kg3 Qc6 21.Bf2 Kb7
-+ (-7.22) Depth: 38/58 00:03:44 1282mN, tb=2192
Before patch is accepted some test suites must be run!?
Jouni