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a Chess Engine Communication Protocol compliant chess engine written by George Lyapko in Pascal and compiled with Delphi [1], first released in July 2000 [2], with executables to run under Windows, and more recently, to x86-64 Mac OS [3]. Beside the transposition table, Bestia features a pawn hash table, and is able to learn from its failures [4] [5].

Bestia participated at three Hungarian Chessprogram Open, and won two times operated by Gábor Szõts, the MASPV 2001 and the MASPV 2003, both with a 100% score.
Number of the beast [6]

Photos & Games

MASPV 2003, round 4, Bestia - Merlin [7] Gábor Szõts and Balázs Jákó [8]
[Event "MASPV 2003"]
[Site " Sopron, Hungary"]
[Date "2003.04.19"]
[Round "4"]
[White "Bestia_094"]
[Black "Merlin"]
[Result "1-0"]
1.d4 d6 2.e4 g6 3.Nc3 Nf6 4.Be3 a6 5.Nf3 Bg7 6.a4 Nbd7 7.Bc4 O-O 8.e5 
dxe5 9.dxe5 Ng4 10.e6 Nde5 11.exf7+ Nxf7 12.Ng5 Qxd1+ 13.Rxd1 Ne5
14.Bd5 c6 15.Bb3 Kh8 16.O-O Nxg5 17.Bxg5 Bg4 18.f3 Bxf3 19.gxf3 Nxf3+
20.Rxf3 Rxf3 21.Bxe7 Re8 22.Rd7 Bxc3 23.bxc3 b6 24.Kg2 Rf5 25.Be6 Rf4
26.Bg5 Rff8 27.Bf7 Rxf7 28.Rxf7 Kg8 29.Rf6 Rc8 30.Be3 b5 31.a5 Kg7
32.Rd6 Kg8 33.Kf3 Rf8+ 34.Ke2 Rc8 35.Rd7 Re8 36.Ra7 Re4 37.Rxa6 Kf7
38.Rxc6 Ke8 39.Rb6 Ra4 40.Rxb5 Kd7 41.Kd3 Ra1 42.Rb7+ Kc8 43.Ra7 h5
44.a6 Kb8 45.Rb7+ Ka8 46.Rb6 Rd1+ 47.Ke2 Rd8 48.Rxg6 Rh8 49.h4 Kb8
50.a7+ Ka8 51.Bd4 Rf8 52.Rg5 Re8+ 53.Kd3 Rf8 54.c4 Rf3+ 55.Ke4 Rf8
56.Rxh5 Rc8 57.Re5 Rg8 58.h5 Rg4+ 59.Kd3 Rg3+ 60.Be3 Rg8 61.h6 Rc8
62.h7 Rh8 63.Rb5 1-0

See also

Forum Posts

External Links

Chess Engine

Bestia Misc



  1. ^ MASPV 2001
  2. ^ New WB engine "Bestia" available for download by George Lyapko, Winboard Forum, July 05, 2000
  3. ^ Chess Engine List from Ron Murawski's Computer-Chess Wiki
  4. ^ Re: How is learning triggered? by George Lyapko, Winboard Forum, May 25, 2006
  5. ^ Bestia from WBEC Ridderkerk
  6. ^ The number of the beast is 666 by William Blake
  7. ^ MASPV 2003 - PGN
  8. ^ MASPV 2003 photos

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