How good is your engine?

[corres]

Some arbitrarily chose position is not suitable do decide about an engine is good or not.
In the evaluation of every engine there are "dark stains".
So only engine-engine matches can show the real power of engines.

Capablanca was a genius for playing game endings and was also a Chess World Champion.
The problem I left on this topic was solved by Tahl and he was also the Chess World Champion.
So a good engine is one that can solve a problem and also be a Champion in engine vs engine match.

This is only your idea.
The old time Chess World Champions were not machines and they were also not perfect.

[thewhip]

Some arbitrarily chose position is not suitable do decide about an engine is good or not.
In the evaluation of every engine there are "dark stains".
So only engine-engine matches can show the real power of engines.

Capablanca was a genius for playing game endings and was also a Chess World Champion.
The problem I left on this topic was solved by Tahl and he was also the Chess World Champion.
So a good engine is one that can solve a problem and also be a Champion in engine vs engine match.

This is only your idea.
The old time Chess World Champions were not machines and they were also not perfect.

What I mean is that one thing does not remove the other. That the deficit of the engines. The better they are for competition the worse they are at solving problems and vice versa. Older, lower-range engines perform better than current ones.

[Ovyron]

What I mean is that one thing does not remove the other. That the deficit of the engines. The better they are for competition the worse they are at solving problems and vice versa. Older, lower-range engines perform better than current ones.

But then there's no good engines. Either they fail at this puzzle or they're destroyed by Stockfish.

All engines are bad.

[thewhip]

The objective is to get the pawn to become queen while preventing the knight from taking it.
This is how my engine handled it in less than 1 second!

Spitter 2.1 X64:

How does your engine do with this? It's another Stockfish killer.

[d]rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1

Well my modest engine solve in 16 seconds. Is mate in five moves.
Here is the analysis.

Spitter x64:
7/15 00:00 2k 0 -0,03 Be6-d5 b5-b4 Bd5xa8 Kb8xa8 Be5xc7 b4-b3 Bc7-e5 b3-b2 Be5xb2
8/14 00:00 2k 0 -0,03 Be6-d5 b5-b4 Bd5xa8 Kb8xa8 Be5xc7 b4-b3 Bc7-e5 h6-h5 Kg6xg7 h5-h4 Kg7-h8
9/18 00:00 5k 0 +0,03 Be6-d5 b5-b4 Bd5xa8 Kb8xa8 Be5xc7 b4-b3 Bc7-e5 h6-h5 Kg6xh5 b3-b2 Be5xb2 g7-g5 Kh5xg5 Ka8-b8 Bb2-e5+ Kb8-a8
10/18- 00:00 13k 0 -0,05 Be6-d5 Kb8-c8 Be5xc7 Kc8xc7 Bd5xa8 Kc7-b6 Kg6xg7 Kb6xa6 Ba8-e4 Ka6-b6
10/17- 00:00 16k 0 -0,13 Be6-d5 Kb8-c8 Be5xc7 Kc8xc7 Bd5xa8 Kc7-b6 Kg6xg7 Kb6xa6 Ba8-e4 Ka6-b6 Be4-d5 a7-a5 Kg7-g6 b5-b4
10/22- 00:00 64k 4.284k -0,29 Be6-d5 Kb8-c8 Be5xc7 Kc8xc7 Bd5xa8 Kc7-b6 Kg6xg7 Kb6xa6 Ba8-e4 Ka6-b6 Be4-d5 a7-a5 Kg7-g6 b5-b4
10/24 00:00 134k 2.857k -0,52 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Be5xg7 Re7-e6+ Kg6-f5 Re6xa6 Bg7-f8 Ra6-a5 Ba8-d5 h6-h5 Kf5-e5 Ra5-a4 Bd5-c6 a7-a6
11/27- 00:00 249k 3.195k -0,60 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Be5xg7 Re7-e6+ Kg6-f5 Re6xa6 Bg7-f8 Ra6-a5 Ba8-d5 h6-h5 Kf5-e5 Ra5-a4 Bd5-c6 a7-a6
11/26+ 00:00 296k 3.181k -0,44 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Be5-d4 g7-g6+ Kf5-g4 Re7-e6 Ba8-b7 b5-b4 Bd4xa7 h6-h5+ Kg4-g5 b4-b3 Ba7-d4
12/31 00:00 505k 2.933k -0,40 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Be5-d4 g7-g6+ Kf5-g4 Kd7-c8 Kg4-f4 b5-b4 Ba8-b7+ Re7xb7 a6xb7+ Kc8xb7 Kf4-e4 a7-a5
13/29+ 00:00 542k 3.151k -0,32 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 Re7-e8 Ba7-d4 Re8-f8+ Kf5-g6 b4-b3 Kg6xh6
14/34+ 00:00 647k 2.968k -0,24 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 Kd7-d8 Kf5-g6 Re7-d7 Bd5-e6 Rd7-d3 Bb8xa7 Rd3-d6 Kg6-f7 Rd6xa6 Ba7-c5 Ra6-c6 Bc5xb4
15/38+ 00:00 1.045k 3.048k -0,08 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 Re7-e5+ Kf5-f6 Re5-e6+ Kf6-f7 Re6-e7+ Kf7-g6 Re7-e6+ Kg6-f5 Re6-e8 Ba7-d4 b4-b3 a6-a7 Re8-f8+ Kf5-e4 Rf8-e8+ Ke4-d3
16/56 00:00 2.559k 3.151k -0,16 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 b4-b3 Ba7-b8+ Kd6-c5 a6-a7 b3-b2 a7-a8Q b2-b1Q+ Bb7-e4 Re7xe4 Bb8-a7+ Kc5-c4 Qa8-c6+ Kc4-b3 Qc6xe4 Qb1xe4+ Kf5xe4 h6-h5 Ba7-e3 g5-g4 Be3-f2 Kb3-c3 Bf2-e1+ Kc3-c2 Be1-g3 Kc2-d2
17/24 00:00 2.637k 3.185k -0,16 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 b4-b3 Ba7-b8+ Kd6-c5 a6-a7 b3-b2 a7-a8Q b2-b1Q+ Bb7-e4 Re7xe4 Bb8-a7+ Kc5-c4 Qa8-c6+ Kc4-b3 Qc6xe4 Qb1xe4+ Kf5xe4 h6-h5 Ba7-e3 g5-g4 Be3-f2 Kb3-c3 Bf2-e1+ Kc3-c2 Be1-g3 Kc2-d2
18/42- 00:01 4.822k 3.356k -0,24 Be6-d5 b5-b4 Bd5xa8 Kb8-c8 Be5xc7 Kc8xc7 Ba8-d5 Kc7-b6 Bd5-c4 Kb6-c5 Bc4-d3 b4-b3 Bd3-f5 b3-b2 Bf5-e4 Kc5-b4 Be4-f5 Kb4-a5 Bf5-d3 Ka5-b6 Kg6xg7 h6-h5 Kg7-f6 h5-h4 Bd3-f5 Kb6xa6
18/45 00:02 8.224k 3.631k -0,32 Be6-d5 b5-b4 Bd5xa8 Kb8-c8 Be5xc7 Kc8xc7 Ba8-d5 Kc7-b6 Bd5-c4 Kb6-c5 Bc4-d3 b4-b3 Kg6xg7 h6-h5 Kg7-f6 h5-h4 Kf6-f5 h4-h3 Bd3-e4 h3-h2 Kf5-e5 b3-b2 Ke5-f5 Kc5-c4 Kf5-e5 Kc4-b5
18/57++ 00:03 12.468k 3.678k +0,63 Be6-d7
19/44++ 00:16 16.035k 3.626k +M5 Be6-d7 b5-b4 Kg6-f7 b4-b3 Kf7-e7 g7-g5 Ke7-d8 b3-b2 Be5xc7++

[zullil]

The objective is to get the pawn to become queen while preventing the knight from taking it.
This is how my engine handled it in less than 1 second!

Spitter 2.1 X64:

How does your engine do with this? It's another Stockfish killer.

[d]rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1

Well my modest engine solve in 16 seconds. Is mate in five moves.
Here is the analysis.

Spitter x64:
7/15 00:00 2k 0 -0,03 Be6-d5 b5-b4 Bd5xa8 Kb8xa8 Be5xc7 b4-b3 Bc7-e5 b3-b2 Be5xb2
8/14 00:00 2k 0 -0,03 Be6-d5 b5-b4 Bd5xa8 Kb8xa8 Be5xc7 b4-b3 Bc7-e5 h6-h5 Kg6xg7 h5-h4 Kg7-h8
9/18 00:00 5k 0 +0,03 Be6-d5 b5-b4 Bd5xa8 Kb8xa8 Be5xc7 b4-b3 Bc7-e5 h6-h5 Kg6xh5 b3-b2 Be5xb2 g7-g5 Kh5xg5 Ka8-b8 Bb2-e5+ Kb8-a8
10/18- 00:00 13k 0 -0,05 Be6-d5 Kb8-c8 Be5xc7 Kc8xc7 Bd5xa8 Kc7-b6 Kg6xg7 Kb6xa6 Ba8-e4 Ka6-b6
10/17- 00:00 16k 0 -0,13 Be6-d5 Kb8-c8 Be5xc7 Kc8xc7 Bd5xa8 Kc7-b6 Kg6xg7 Kb6xa6 Ba8-e4 Ka6-b6 Be4-d5 a7-a5 Kg7-g6 b5-b4
10/22- 00:00 64k 4.284k -0,29 Be6-d5 Kb8-c8 Be5xc7 Kc8xc7 Bd5xa8 Kc7-b6 Kg6xg7 Kb6xa6 Ba8-e4 Ka6-b6 Be4-d5 a7-a5 Kg7-g6 b5-b4
10/24 00:00 134k 2.857k -0,52 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Be5xg7 Re7-e6+ Kg6-f5 Re6xa6 Bg7-f8 Ra6-a5 Ba8-d5 h6-h5 Kf5-e5 Ra5-a4 Bd5-c6 a7-a6
11/27- 00:00 249k 3.195k -0,60 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Be5xg7 Re7-e6+ Kg6-f5 Re6xa6 Bg7-f8 Ra6-a5 Ba8-d5 h6-h5 Kf5-e5 Ra5-a4 Bd5-c6 a7-a6
11/26+ 00:00 296k 3.181k -0,44 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Be5-d4 g7-g6+ Kf5-g4 Re7-e6 Ba8-b7 b5-b4 Bd4xa7 h6-h5+ Kg4-g5 b4-b3 Ba7-d4
12/31 00:00 505k 2.933k -0,40 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Be5-d4 g7-g6+ Kf5-g4 Kd7-c8 Kg4-f4 b5-b4 Ba8-b7+ Re7xb7 a6xb7+ Kc8xb7 Kf4-e4 a7-a5
13/29+ 00:00 542k 3.151k -0,32 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 Re7-e8 Ba7-d4 Re8-f8+ Kf5-g6 b4-b3 Kg6xh6
14/34+ 00:00 647k 2.968k -0,24 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 Kd7-d8 Kf5-g6 Re7-d7 Bd5-e6 Rd7-d3 Bb8xa7 Rd3-d6 Kg6-f7 Rd6xa6 Ba7-c5 Ra6-c6 Bc5xb4
15/38+ 00:00 1.045k 3.048k -0,08 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 Re7-e5+ Kf5-f6 Re5-e6+ Kf6-f7 Re6-e7+ Kf7-g6 Re7-e6+ Kg6-f5 Re6-e8 Ba7-d4 b4-b3 a6-a7 Re8-f8+ Kf5-e4 Rf8-e8+ Ke4-d3
16/56 00:00 2.559k 3.151k -0,16 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 b4-b3 Ba7-b8+ Kd6-c5 a6-a7 b3-b2 a7-a8Q b2-b1Q+ Bb7-e4 Re7xe4 Bb8-a7+ Kc5-c4 Qa8-c6+ Kc4-b3 Qc6xe4 Qb1xe4+ Kf5xe4 h6-h5 Ba7-e3 g5-g4 Be3-f2 Kb3-c3 Bf2-e1+ Kc3-c2 Be1-g3 Kc2-d2
17/24 00:00 2.637k 3.185k -0,16 Be6-d5 Kb8-c8 Bd5xa8 Rc7-e7 Kg6-f5 Kc8-d7 Ba8-d5 b5-b4 Be5-b8 g7-g5 Bb8xa7 Kd7-d6 Bd5-b7 b4-b3 Ba7-b8+ Kd6-c5 a6-a7 b3-b2 a7-a8Q b2-b1Q+ Bb7-e4 Re7xe4 Bb8-a7+ Kc5-c4 Qa8-c6+ Kc4-b3 Qc6xe4 Qb1xe4+ Kf5xe4 h6-h5 Ba7-e3 g5-g4 Be3-f2 Kb3-c3 Bf2-e1+ Kc3-c2 Be1-g3 Kc2-d2
18/42- 00:01 4.822k 3.356k -0,24 Be6-d5 b5-b4 Bd5xa8 Kb8-c8 Be5xc7 Kc8xc7 Ba8-d5 Kc7-b6 Bd5-c4 Kb6-c5 Bc4-d3 b4-b3 Bd3-f5 b3-b2 Bf5-e4 Kc5-b4 Be4-f5 Kb4-a5 Bf5-d3 Ka5-b6 Kg6xg7 h6-h5 Kg7-f6 h5-h4 Bd3-f5 Kb6xa6
18/45 00:02 8.224k 3.631k -0,32 Be6-d5 b5-b4 Bd5xa8 Kb8-c8 Be5xc7 Kc8xc7 Ba8-d5 Kc7-b6 Bd5-c4 Kb6-c5 Bc4-d3 b4-b3 Kg6xg7 h6-h5 Kg7-f6 h5-h4 Kf6-f5 h4-h3 Bd3-e4 h3-h2 Kf5-e5 b3-b2 Ke5-f5 Kc5-c4 Kf5-e5 Kc4-b5
18/57++ 00:03 12.468k 3.678k +0,63 Be6-d7
19/44++ 00:16 16.035k 3.626k +M5 Be6-d7 b5-b4 Kg6-f7 b4-b3 Kf7-e7 g7-g5 Ke7-d8 b3-b2 Be5xc7++

Bravo!

[Paloma]

It seems White should resign, but UCI engines can't do that.

It's a white win.

Cool. Now I'm actually interested.

Oh, now I see. I guess I better throw Stockfish out.

It's van Breukelen Study (or Plaskett's Puzzle)
http://www.talkchess.com/forum3/viewtop ... 83#p711083

[zullil]

Crafty solves it:

39 3:04 -2.87 1. d8=Q Nf7+ 2. Ke7 Nxd8 3. Kxd8 Ba5+
4. Kd7 Bc7 5. Nxe3 Bxg3 6. Kc6 Kg6 7. Kb5
Nc7+ 8. Kc4 h5 9. Kxc3 Bf2 10. Nf1 h4
11. Kd3 Kf5 12. Ke2 Bd4 13. Kf3 c4
14. Bc2+ Ke5 15. Kg4 Bf2 16. Kf3 Be1
17. Ne3 c3 18. Kg4 Ne6 19. Nc4+ Kd4
20. Nd6 Nc5 21. Nf5+ Kd5 22. Ne3+ Ke5
23. Bf5 Ne4
39 37:25 6.71 1. Nf6+ Kg7 2. Nh5+ Kg6 3. Bc2+ Kxh5
4. d8=Q Kg4 5. Bd1+ e2 6. Bxe2+ Kxg3
7. Kc6 Kf2 8. Qd1 Nc7 9. Kxc7 Ne6+ 10. Kb8
Nd4 11. Bh5 Ke3 12. Bg6 <HT>

[JVMerlino]

The objective is to get the pawn to become queen while preventing the knight from taking it.
This is how my engine handled it in less than 1 second!

Spitter 2.1 X64:

How does your engine do with this? It's another Stockfish killer.

[d]rk6/p1r3p1/P3B1Kp/1p2B3/8/8/8/8 w - - 0 1

Well my modest engine solve in 16 seconds. Is mate in five moves.

Nearly as fast for Myrddin, another weak engine.

Code: Select all

15      0     23      2225788 e6d5 b8c8 (9471 KNPS)
16      0     31      2997975 e6d5 b8c8 d5a8 c7e7 a8b7 e7b7 a6b7 c8b7 e5g7 h6h5 g7f6 b5b4 g6h5 (9578 KNPS)
17      0     39      3893507 e6d5 b8c8 d5a8 c7e7 a8b7 (9957 KNPS)
18      0     70      7850887 e6d5 b8c8 d5a8 c7e7 a8b7 e7b7 a6b7 c8b7 e5g7 h6h5 g6h5 (11167 KNPS)
19      0     93     11208070 e6d5 b8c8 d5a8 c7e7 (11948 KNPS)
20      0    178     24738398 e6d5 b8c8 d5a8 b5b4 e5c7 c8c7 a8d5 h6h5 g6h5 c7b6 h5g6 b6a6 g6g7 (13890 KNPS)
21      0    225     32444694 e6d5 b8c8 d5a8 b5b4 (14419 KNPS)
22      0    418     62271511 e6d5 h6h5 g6h5 b8c8 e5c7 c8c7 d5a8 c7b6 a8b7 b5b4 h5g6 b4b3 g6g7 b3b2 b7e4 b6a6 (14869 KNPS)
23      0    665    102286907 e6d5 h6h5 g6h5 (15367 KNPS)
24    -16   1745    266714024 e6d5? b8c8 (15281 KNPS)
24     16   1846    284082106 e6d7! c7g7 g7e5 b5b4 f6e5 (15381 KNPS)
24     32   1846    284144368 e6d7! (15384 KNPS)
24     64   1848    284186226 e6d7! (15373 KNPS)
24    112   1848    284226445 e6d7! (15376 KNPS)
24    176   1848    284262739 e6d7! (15378 KNPS)
24    256   1848    284297200 e6d7! (15379 KNPS)
24    352   1848    284326563 e6d7! (15381 KNPS)
24    464   1848    284353153 e6d7! (15382 KNPS)
24    592   1848    284380043 e6d7! (15384 KNPS)
24    736   1848    284404994 e6d7! (15385 KNPS)
24  32758   1850    284595501 e6d7 b5b4 g6f7 b4b3 f7e7 b3b2 e7d8 h6h5 e5c7 (15383 KNPS)(Mate in 5)

[Dann Corbit]

"Problem Solvers" is an extremely useful category of engine, and they don't have to be world beaters for strength in game play to be incredibly useful.

The best is Bluefish-XI with a couple small tweaks, which has no rivals so far in my testing.
But there are positions that will baffle Bluefish-XI and yet Sting can solve them.
Maybe it is necessary to run Chest to solve a position.
It is nice to have a full tool-bag so that we can find the answers we are looking for.

[jorose]

I gave Winter the first position from this thread, not expecting it to find anything. Indeed it struggled and I gave up on depth 40, only to see that the bestmove UCI output was the right move! After starting the search again it was printing the correct line form the beginning

Code: Select all

info  depth 28 seldepth 52 time 85227 nodes 84006843 nps 985671 hashfull 58 score cp 317 wdl 845 153 0 pv g4f6 h7g7 f6h5 g7g6 d1c2 g6h5 d7d8q h5g4 c2d1 g4g3 d8e8 c5c4 d6c6 g3f4 e8g8 g5e4 g8c4 a6c5 c6d5 b4a3 d1c2 e3e2 c4e2 e4f6 d5d4 c5d7 e2e3 f4g4 c2d1 g4f5 e3d3 f5e6 d3e2 e6f5 e2c2 f5g5 c2g2 g5h4 g2f2 h4h3

With a fresh search it likes Nf6 up to depth 11 before rejecting it in favor of other moves that it believes offer no winning chances. I think contempt could be used in order to more easily find the right answer for such problems.

Fresh search output:

Code: Select all

info  depth 1 seldepth 5 time 0 nodes 29 nps 29000 score cp 173 wdl 753 83 162 pv d7d8q
info  depth 2 seldepth 6 time 1 nodes 372 nps 186000 score cp -164 wdl 128 175 696 pv d6c6 h7g7
info  depth 3 seldepth 7 time 2 nodes 755 nps 251666 score cp 166 wdl 728 115 156 pv g4f6 h7g6 d7d8q
info  depth 4 seldepth 8 time 5 nodes 1992 nps 332000 score cp -146 wdl 74 335 590 pv g4e3 g5e4 d6d5 e4g3
info  depth 5 seldepth 8 time 8 nodes 3470 nps 385555 score cp 49 wdl 319 551 129 pv g4f6 h7g6 d1h5 g6f6 d7d8q
info  depth 6 seldepth 12 time 19 nodes 8375 nps 418750 score cp -148 wdl 5 466 528 pv g4e3 g5f7 d6c6 h7g7 d1e2 f7e5
info  depth 7 seldepth 12 time 24 nodes 10607 nps 424280 score cp 2 wdl 318 371 310 pv g4f6 h7g7 f6h5 g7h7 d1c2 g5e4 c2e4
info  depth 8 seldepth 12 time 25 nodes 11268 nps 433384 score cp 2 wdl 318 371 310 pv g4f6 h7g7 f6h5 g7h7 d1c2 g5e4 c2e4 h7h8
info  depth 9 seldepth 15 time 50 nodes 20186 nps 395803 score cp -93 wdl 240 169 590 pv g4f6 h7g7 f6h5 g7g6 d1c2 g6h5 g3g4 h5h4 d7d8q
info  depth 10 seldepth 17 time 146 nodes 60991 nps 414904 score cp -147 wdl 191 96 712 pv g4f6 h7g7 f6h5 g7g6 h5f4 g6f5 d1c2 f5g4 c2f5 g4f5 d7d8q g5f7
info  depth 11 seldepth 19 time 174 nodes 71556 nps 408891 score cp -2 wdl 204 580 215 pv g4f6 h7g7 f6h5 g7g6 d1c2 g6h5 c2d1 h5g6 d1c2 g6f7 d7d8q e3e2
info  depth 12 seldepth 19 time 409 nodes 179206 nps 437087 score cp -141 wdl 99 300 600 pv g4e3 b4a5 d1e2 a6b8 e2d3 h7g7 e3f5 g7g6 d3c2 c5c4 f5e7 g6f7
info  depth 13 seldepth 22 time 915 nodes 421876 nps 460563 score cp -154 wdl 18 423 558 pv d7d8r g5f7 d6d7 f7d8 d7d8 h7g7 g4e3 g7f6 d1e2 b4a5 d8e8 a6b4 e3g4 f6g7
info  depth 14 seldepth 23 time 1305 nodes 623229 nps 477204 hashfull 0 score cp -165 wdl 4 422 573 pv d7d8r g5f7 d6d7 f7d8 d7d8 b4a5 d8e7 a5c7 g4e3 a6b4 e7f6 c7g3 d1f3 h7h8 f3e4 h6h5 f6g5 h5h4
info  depth 15 seldepth 25 time 2839 nodes 1395899 nps 491513 hashfull 1 score cp -158 wdl 0 448 551 pv d6c6 b4a5 c6b5 a6b8 b5a5 b8d7 g4e3 h7g7 d1c2 g5e6 a5b5 d7e5 c2b3 e6d4 b5c5 d4b3 c5b4 b3a5
info  depth 16 seldepth 28 time 3720 nodes 1868264 nps 502086 hashfull 2 score cp -148 wdl 2 474 524 pv d6c6 b4a5 c6b5 a6b8 b5a5 b8d7 g4e3 h7g7 d1c2 g5e6 a5b5 d7e5 c2d1 g7f7 e3c4 e5d3 c4e3 d3f2 d1c2 e6d4 b5c5 d4c2
info  depth 17 seldepth 32 time 4512 nodes 2301498 nps 509970 hashfull 2 score cp -175 wdl 3 396 599 pv d6c6 b4a5 c6b5 a6b8 b5a5 b8d7 g4e3 h7g7 d1c2 g5e6 a5b5 d7e5 c2d1 g7g6 e3c4 e5f7 b5c6 g6f6 c6d5 f7g5 d1c2 h6h5 c2b3
info  depth 18 seldepth 33 time 5829 nodes 2977879 nps 510785 hashfull 2 score cp -155 wdl 0 458 542 pv d6c6 b4a5 c6b5 a6b8 b5a5 b8d7 g4e3 h7g7 d1c2 g5e6 a5b5 d7e5 c2d1 g7f7 d1b3 h6h5 b3d1 f7g6 e3d5 e6d4 b5c5 c3c2 d5f4 g6g5 d1h5 c2c1q