Joker NL

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Joker, a Chess Engine Communication Protocol compatible experimental chess program written by Harm Geert Muller for the purpose of trying out novel techniques, such as combining depth-first with breadth-first search algorithms, deep futility pruning, and differentially maintained attack tables and Pawn-structure evaluation. In 2011, HGM stopped the work on Joker, and started a new engine named Spartacus instead, based on a 24x10 board.

=Selected Games= DOCCC 2010, round 8, HansDamf - Joker [Event "DOCCC 2010"] [Site "Leiden"] [Date "2010.11.28"] [Round "8"] [White "HansDamf"] [Black "Joker"] [Result "0-1"]

1.d4 d5 2.c4 dxc4 3.Nf3 b5 4.e3 c6 5.a4 Nf6 6.Nc3 b4 7.Na2 e6 8.Bxc4 Nbd7 9.Bd2 a5 10.O-O Bd6 11.Re1 Ne4 12.Bd3 Nxd2 13.Qxd2 Bb7 14.e4 e5 15.Rad1 O-O 16.b3 exd4 17.e5 Bb8 18.Qc2 g6 19.e6 fxe6 20.Nxd4 Qc7 21.g3 Ba7 22.Bxg6 Ne5 23.Bh5 Bxd4 24.Rxd4 c5 25.Rh4 Rf5 26.Re3 Qc6 27.f3 c4 28.Bg4 Qb6 29.Qf2 Rg5 30.Re2 Qxf2+ 31.Rxf2 Rxg4 32.fxg4 cxb3 33.Nc1 Nf3+ 34.Kf1 Nxh4 35.gxh4 Bd5 36.Rb2 Rf8+ 37.Ke2 Rf3 38.Nd3 Rh3 39.Nf2 Rxh2 40.Ke3 Rxh4 41.Kf4 Kf7 42.Kg3 Rh6 43.Kf4 Rf6+ 44.Ke5 Rf3 45.Nd1 Rd3 46.Nf2 Rc3 47.Rb1 Ke7 48.Nd1 Rg3 49.Nf2 Re3+ 50.Kd4 Re2 51.Nd1 Be4 52.Rxb3 Bc2 53.Rh3 Rd2+ 54.Kc4 Rxd1 55.Rh5 Rg1 56.Kd4 Rxg4+ 0-1

=Namesake=
 * Joker by Marc-François Baudot and Jean-Christophe Weill
 * Joker by Manlio Morini

=See also=
 * Jester by Stéphane Nguyen
 * Jester by Marty Franz
 * KingSlayer
 * Micro-Max
 * Spartacus

=External Links=

Chess Engine

 * Joker's ICGA Tournaments
 * The Joker Chess Engine

Misc

 * Joker disambiguation page from Wikipedia
 * Joker (playing card) from Wikipedia
 * Joker (comics) from Wikipedia
 * Joker (comic book) from Wikipedia
 * Anthony Newley - The Joker (1965), YouTube Video

=References=

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