Stockfish Evaluation

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Eelco de Groot
Posts: 4693
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Stockfish Evaluation

Post by Eelco de Groot »

Latest Stockfish beta, of three days ago, below. In no version I have seen it comes close to that +3 from Harvey. Did not try many but strange it is. I expect it has to do with being a MAC version or something like that or the 7 men tables :P Was that reproducible I wonder...


[d]8/8/p2P1k1p/1p3P2/1Pp5/P4K1P/8/8 w - -

Code: Select all

Engine: Stockfish dev-20251228-44d5467b (1024 MB)
gemaakt door the Stockfish developers (see AUTHORS f

11/25  0:00   +1.61    1.Ke2 Kf7 2.h4 h5 3.Kd2 Kf6 4.Kc2 Kf7 
                       5.Kc3 Kf6 (58.904) 84 

12/48  0:00   +1.23    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 Kf7 4.Ke4 Kf6 
                       5.Kf4 Kf7 6.Ke3 Kf6 7.Ke4 Kf7 8.Kd4 Kf6 
                       9.Ke3 Kf7 10.Kf4 Kf6 11.h4 (208.215) 222 

13/43  0:00   +1.23    1.Ke2 Kf7 2.Kd2 Kf6 3.h4 h5 4.Kc2 Kf7 
                       5.Kc3 Kf6 6.Kd4 Kf7 7.a4 Kf6 8.axb5 axb5 
                       9.Ke3 Kf7 10.Kf3 Kf6 11.Kf2 Kf7 
                       12.Ke2 Kf6 13.Kf3 Kf7 14.Kf2 (210.286) 224 

14/16  0:00   +1.23    1.Ke2 Kf7 2.Kd2 Kf6 3.h4 h5 4.Kc2 Kf7 
                       5.Kc3 Kf6 6.Kd4 Kf7 7.a4 Kf6 (211.113) 224 

15/25  0:00   +1.23    1.Ke2 Kf7 2.Kd2 Kf6 3.h4 h5 4.Kc2 Kf7 
                       5.Kc3 Kf6 6.Kd4 Kf7 7.a4 Ke8 (212.177) 225 

16/27  0:01   +1.23    1.Ke2 Kf7 2.Kd2 Kf6 3.h4 h5 4.Kc2 Kf7 
                       5.Kc3 Kf6 6.Kd4 Kf7 7.a4 Kf6 8.axb5 axb5 
                       9.Ke3 Kf7 10.Ke2 (287.366) 285 

17/41  0:01   +1.41    1.Ke2 Kf7 2.Kd2 Kf6 3.h4 h5 4.Kc2 Kf7 
                       5.Kc3 Kf6 6.Kb2 Kf7 7.Kc2 Kf6 8.Kb1 Kf7 
                       9.Ka1 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc1 Kf7 13.Kd1 Kf6 14.Ke1 (314.876) 306 

18/44  0:01   +1.41    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 Kf7 4.Kf4 h5 
                       5.Ke3 Kf6 6.Kf3 Kf7 7.Ke2 Kf6 8.Ke3 Kf7 
                       9.Kf2 (398.302) 360 

19/41  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 Kf7 4.Kf4 h5 
                       5.Ke3 Kf6 6.Kf3 Kf7 7.Ke4 Kf6 8.Kd4 Kf7 
                       9.Kc3 Kf6 10.Kd2 Kf7 11.Ke2 Kf6 
                       12.h4 (791.362) 614 

20/63  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.Ke2 Kf7 
                       9.Kd2 Kf6 10.Kd1 (1.090.932) 743 

21/39  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.Kf3 Kf7 
                       9.Kf4 Kf6 10.Ke3 Kf7 11.Kf2 (1.189.261) 782 

22/81  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.Kf3 Kf7 
                       9.Kf4 Kf6 10.h4 Kf7 11.Ke4 Kf6 
                       12.Kd4 Kf7 13.Kc3 Kf6 14.Kd2 (1.260.643) 816 

23/42  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.Kf3 Kf7 
                       9.Kf4 Kf6 10.h4 Kf7 11.Ke3 Kf6 
                       12.Kd4 Kf7 13.Kd5 (1.303.762) 825 

24/85  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.Kf3 Kf7 
                       9.Kf4 Kf6 10.h4 Kf7 11.Ke3 Kf6 
                       12.Ke4 Kf7 13.Kd4 Kf6 14.a4 (1.396.545) 837 

25/51  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.h4 Kf7 
                       9.Kf2 Kf6 10.Ke1 Kf7 11.Ke2 Kf6 
                       12.Kf3 Kf7 13.Ke3 Kf6 14.Ke4 (1.847.997) 1010 

26/56  0:01   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.h4 Kf7 
                       9.Kf2 Kf6 10.Ke1 Kf7 11.Kd2 Kf6 
                       12.Kc3 Kf7 13.Kb2 Kf6 14.Kc1 (2.018.898) 1036 

27/70  0:02   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.h4 Kf7 
                       9.Kd4 Kf6 10.Ke4 Kf7 11.Kf3 Kf6 
                       12.Ke2 Kf7 13.Ke1 Kf6 14.Kd2 (2.097.991) 1046 

28/55  0:02   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.h4 Kf7 
                       9.Kd4 Kf6 10.Ke4 Kf7 11.Kf3 Kf6 
                       12.Kf4 Kf7 13.Ke4 Kf6 14.d7 (2.151.306) 1050 

29/52  0:02   +1.40    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Ke3 Kf6 8.h4 Kf7 
                       9.Kd4 Kf6 10.Ke4 Kf7 11.Kf3 Kf6 
                       12.Kf4 Kf7 13.Ke4 Kf6 14.Kd4 (2.295.271) 1057 

30/65  0:02   +1.43    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 h5 4.Kf4 Kf7 
                       5.Ke4 Kf6 6.Kd4 Kf7 7.Kc3 Kf6 8.h4 Kf7 
                       9.Kd2 Kf6 10.Ke2 Kf7 11.Ke3 Kf6 
                       12.Kd4 Kf7 13.Kc3 Kf6 14.Kb2 (2.399.278) 1067 

31/75  0:04   +1.71    1.Ke2 Kf7 2.Kf2 Kf6 3.Kf3 Kf7 4.Ke4 h5 
                       5.Kf3 h4 6.Ke4 Kf6 7.Kf4 Kf7 8.Ke3 Kf6 
                       9.Kd4 Kf7 10.Kc3 Kf6 11.Kb2 Kf7 
                       12.Kb1 Kf6 13.Kc2 Kf7 14.Kc1 (3.101.198) 737 

32/49  0:05   +1.71    1.Ke2 h5 2.Kd1 Kf7 3.Kd2 Kf6 4.Kc3 h4 
                       5.Kb2 Kf7 6.Kc2 Kf6 7.Kc3 Kf7 8.Kb2 Kf6 
                       9.Kb1 Kf7 10.Kc1 Kf6 11.Kd1 Kf7 
                       12.Ke1 Kf6 13.Ke2 Kf7 14.Kd1 (5.435.470) 953 

33/66  0:07   +1.54    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc3 Kf6 8.Kd4 Kf7 
                       9.a4 Kf6 10.axb5 axb5 11.Ke3 Kf7 
                       12.Kd2 h4 13.Kc3 Kf6 14.Kd4 (8.412.930) 1087 

34/64  0:07   +1.52    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc3 Kf6 8.Kd4 Kf7 
                       9.a4 Kf6 10.axb5 axb5 11.Ke3 Kf7 
                       12.Kd2 Kf6 13.Kc2 Kf7 14.Kc3 (8.921.983) 1126 

35/63  0:08   +1.55    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (10.305.773) 1234 

36/66  0:08   +1.55    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (10.459.521) 1238 

37/82  0:08   +1.54    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (11.276.775) 1274 

38/74  0:09   +1.54    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (13.167.743) 1376 

39/71  0:10   +1.54    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (15.173.228) 1462 

40/77  0:11   +1.54    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (17.824.570) 1592 

41/107 0:11   +1.54    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (18.802.490) 1603 

42/107 0:17   +1.54    1.Ke2 h5 2.Ke3 Kf7 3.Kd4 Kf6 4.Kc3 Kf7 
                       5.Kc2 Kf6 6.Kb2 Kf7 7.Kc1 Kf6 8.Kb1 Kf7 
                       9.Kb2 Kf6 10.Ka2 Kf7 11.Kb1 Kf6 
                       12.Kc2 Kf7 13.Kc3 Kf6 14.Kd4 (39.945.338) 2312 

beste zet: Kf3-e2  tijd: 0:18.343 min  n/s: 2.312.856   nodes: 39.945.338
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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syzygy
Posts: 5814
Joined: Tue Feb 28, 2012 11:56 pm

Re: Stockfish Evaluation

Post by syzygy »

Eelco de Groot wrote: ↑Wed Dec 31, 2025 7:04 pm Latest Stockfish beta, of three days ago, below. In no version I have seen it comes close to that +3 from Harvey. Did not try many but strange it is. I expect it has to do with being a MAC version or something like that or the 7 men tables :P Was that reproducible I wonder...
It was just a specific version of the NNUE net that happened to give incorrect evaluations for the position. If you go back to a development version released shortly before the original post, you can probably reproduce it.
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