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Eman 7.40 64-bit SSE2

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Thank you very much Yanbu1 for the sharing spirit. Thanks

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EMAN 7.80 64-bit.zip

https://pixeldrain.com/u/ZcErNRT2

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Yanbu1, you are one of the kindness persons on this forum. Thanks again for sharing all this with us. God bless you !!!!!!!

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Yes he is the best!

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About eman 7.80, i found a bug and an unwanted action :

the bug : after a few strokes, the engine displays a delirious depth.
Yesterday in a match (threads 40, hash 16GB, tc 20min+5sec) between eman 7.80 and brainlearn 13.1, the eman's analysis showed D34 then D96 2 milliseconds later (according to the LOG file) !?

the unwanted action : eman writes low depth data into the experience file.
By default the "Experience MultiPV" uci option is true but until now it didn't work. With this release, it works and it adds several moves into the experience file after each analysed position but their depth are very low ! When eman trains itself on an opening, often it tries these weak moves and loses games instead of plays the first bestmove or the second bestmove, etc.

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[Event "Computer chess game"]
[Site "WORKSTATION"]
[Date "2021.12.08"]
[Round "?"]
[White "40T 16GB Eman 7.80 nn-cdf1785602d6"]
[Black "40T 16GB BrainLearn 13.1 nn-cdf1785602d6"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Grünfeld, 5.Cf3 c6"]
[Time "17:01:06"]
[Variation "3.g3 g6"]
[TimeControl "1200+5"]
[Termination "unterminated"]
[PlyCount "35"]
[WhiteType "program"]
[BlackType "program"]

1. Nf3 {+0.05/39 85} d5 {-0.11/37 95} 2. g3 {+0.12/38 83} g6 {-0.17/31 36}
3. Bg2 {+0.24/43 28} Bg7 {-0.10/39 37} 4. d4 {+0.17/36 8} Nf6 {-0.10/31 11}
5. c4 {+0.29/38 65} c6 {-0.11/33 13} 6. b3 {+0.27/54 38} O-O {-0.01/31 23}
7. Bb2 {+0.22/34 9} Qb6 {-0.06/31 29} 8. Qc1 {+0.23/96 18} Bf5 {-0.01/31
21} 9. O-O {+0.18/39 14} Nbd7 {-0.01/29 16} 10. Nc3 {+0.12/37 43} Ne4
{0.00/29 15} 11. e3 {+0.19/40 35} Rac8 {-0.06/31 46} 12. Re1 {+0.17/37 29}
Ndf6 {0.00/30 14} 13. Nh4 {+0.23/42 48} Bd7 {-0.03/34 46} 14. Qc2 {+0.15/36
18} Nxc3 {-0.02/31 10} 15. Qxc3 {+0.08/57 18} Rfe8 {0.00/31 16} 16. Rec1
{+0.13/39 40} h5 {0.00/33 14} 17. a4 {0.00/42 55} Qd8 {0.00/37 61} 18. Qc2
{+0.01/34 1} *
D96 here it is weird with this hardware and time control.

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Yanbu1, Thank you for sharing this version of Eman.
Regards.

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Eman 7.40 64-bit SSE2 - Page 2 Rcz8rYU
Until i set Experience MuliPV = false, [eman experience] altmost learned nothing and unnecessarily lost a lot of games.

Eman 7.40 64-bit SSE2 - Page 2 O3xSZeJ
Due to Experience MuliPV = true, [eman experience] lost during 400 games to understand that it don't know how to win with Ra8-b8.

Eman 7.40 64-bit SSE2 - Page 2 P4Aac2D
- Here, scid showed Bc8-d7 was the bestmove as black. [eman experience] had to try several moves until it finally learned Bc8-d7.
- With Experience Multipv = true, eman wrote tons of moves and some with very low depth into the experience file. Here, with Experience MultiPV = false, we would have seen only 6 or 7 moves in the experience file.

In the case of a tourney, Experience MultiPV = true is more usefull because Eman won't read thousands times the same experience data from the same position (2 times per round, at least 1 time as white + 1 time as black).

In the case of learning an opening, if at each position Eman writes non-played moves with low depth, in the end the experience file will grow unnecessarily and slow down the learning so it lost more games.

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