SmarThink 1.60 released

[Sergei S. Markoff]

http://genes1s.net/smarthink.php

Major changes:

— fixed bug with wrong time output in UCI mode;
— fixed bug with stop command processing during multi-pv search;
— new incarnation of singular extensions;
— updated chained pawns eval;
— smarter time control (depends of board material);
— forward repetitions detection;
— knight PSQ tuning;
— using less memory (free some initialization arrays after using);
— delta pruning simplified;
— ETC code removed at all;
— simplier pruning/razoring code;
— better forward pruning;
— fixed several bugs in root search;
— small modification in interior pruning.

+40–60 ELO according to my tests

[Graham Banks]

Very good. Thanks Sergei.

[Sylwy]

THANK YOU !

This week the w32 version will be tested !

Silvian R

[Marek Soszynski]

Thank you, Sergei!

Please provide when you can a 64-bit SSE3 compile (i.e not SSE4.2), and ultimately some Linux compiles including SSE3 ones.

I am testing SmarThink_v140_x32.exe which is a most interesting engine for infinite analysis. Its self-reporting of time does seem out by a factor of 10 though.

[Werner]

Thanks a lot Sergei!

Good luck

Werner

[Damir]

Thanks Sergei

[SzG]

Nice progress, Sergei. Keep up the good work.

[overlord]

Hello Sergej,

I have tested Smathing little bit. Try redefine pieces values. It seems that it is the biggest weakness. In match against Senpai Smarthing had almost everytime quality more and lost those games.

[overlord]

[Event "Blitz 5m"]
[Site "?"]
[Date "2014.06.23"]
[Round "?"]
[White "Kvicala, Miroslav"]
[Black "SmarThink 1.60"]
[Result "1-0"]
[WhiteElo "2016"]
[PlyCount "71"]
[TimeControl "300"]

{2048MB, Mirekbook.ctg, BOBABOBEK-PC} 1. e4 {0} e6 {0} 2. d4 {1} d5 {0} 3. Nc3
{1} Bb4 {0} 4. e5 {1} Ne7 {0} 5. a3 {1} Bxc3+ {0} 6. bxc3 {1} b6 {0} 7. Be3 {9}
c5 {58} 8. Bd3 {2} Qc7 {7} 9. Qd2 {5} O-O {7} 10. Nf3 {3} Nbc6 {3} 11. O-O {1}
c4 {5} 12. Be2 {1} Bb7 {6} 13. Nh4 {8} f6 {0} 14. f4 {2} Rad8 {4} 15. Bg4 {26}
f5 {6} 16. Bh5 {9} Bc8 {7} 17. Kh1 {5} Bd7 {7} 18. Rf2 {6} b5 {9} 19. Rg1 {7}
Nc8 {5} 20. g4 {9} Be8 {34} 21. Bxe8 {2} Rdxe8 {22} 22. gxf5 {2} exf5 {0} 23.
Rfg2 {10} Rf7 {0} 24. Qe2 {28} Qd7 {3} 25. Qh5 {9} Nd8 {14} 26. Rg3 {9} Ne6 {11
} 27. Nxf5 {5} Kh8 {11} 28. Rh3 {0} Nf8 {9} 29. Rxg7 {21} Rxg7 {2} 30. Nxg7 {1}
Re7 {47} 31. Nf5 {2} Re6 {4} 32. Ng3 {12} Qe8 {6} 33. f5 {10} Qxh5 {3} 34. Nxh5
{16} Ra6 {0} 35. Nf6 {7} Rxf6 {7} 36. exf6 {2} 1-0

[gerold]

Thanks Sergei,

Best,
Gerold.