Author: Erik Madsen

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Goals

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Technique Create an imbalance in the position (different advantages and disadvantages for each player). Then develop pieces to capitalize on advantages and limit opponent’s advantages. Castling Protects king. Activates rook, especially if center file is semi-open or open. Castle if center is opened. Castle before attacking opponent’s king. Can delay or forgo castling if center is closed or if queens are exchanged early. Development Bring all the pieces into play. Avoid moving the same piece more than once, if possible. Maximize the mobility (number of legal moves) of each piece. Do not bring the queen past the second or third… Continue Reading

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Banks 69th Amateur Series Division 6

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MadChess 2.2 participated in Graham Banks’ 69th amateur tournament in division 6. 1 2 3 4 5 6 7 8 9 0 1 2 1 Ghost 3.1 64-bit **** ½011 ½110 0½11 1100 1110 0½11 0½11 1½½1 1½½1 ½11½ ½111 30.0/44 2 Monolith 0.4 64-bit ½100 **** 10½1 100½ 10½1 0111 ½1½1 101½ 1000 1111 ½½11 1110 27.5/44 3 Capivara LK 0.09b02g 64-bit ½001 01½0 **** ½0½½ ½01½ ½00½ 0011 1011 1111 1½11 111½ 1½1½ 26.5/44 4 Delocto 0.6 64-bit 1½00 011½ ½1½½ **** ½010 0½½0 ½11½ ½11½ ½010 1001 1½11 011½ 24.5/44 5 Schooner 1.8 64-bit 0011 01½0 ½10½… Continue Reading

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Mad Woman’s Breakfast

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MadChess 2.2 participated in a tournament Graham Banks arranged, named Mad Woman’s Breakfast. 1 2 3 4 5 6 7 8 9 0 1 2 1 Betsabe II 1.75 **** 1½11 001½ 110½ 011½ 001½ 1011 1100 111½ 1000 1111 0½1½ 27.0/44 2 Winter 0.1.1 64-bit 0½00 **** 01½1 ½101 ½0½½ ½001 1½1½ 010½ 111½ 01½1 11½½ 0111 25.0/44 3 RubiChess 0.8 64-bit 110½ 10½0 **** ½1½1 00½1 11½½ 0100 0011 ½11½ ½½½½ ½01½ 0111 24.5/44 4 Jumbo 0.6.31 64-bit 001½ ½010 ½0½0 **** 11½1 1100 10½½ 1111 001½ ½1½1 ½000 11½1 24.0/44 5 MadChess 2.2 64-bit 100½ ½1½½ 11½0… Continue Reading

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Bullet Tournament on New PC

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I ran a bullet chess tournament on my new PC, organized into four divisions of 12 chess engines of similar strength. Within each division, the engines played a round-robin tournament of 100 games against each engine (50 rounds, play each opening twice). In addition to these four round-robin tournaments, I ran three cross-divisional tournaments (1-2, 2-3, 3-4), pitting the three weakest engines from the higher division against the three strongest engines from the lower division. The cross-divisional tournaments are necessary to eliminate isolated engine groups and enable Ordo to converge on estimated ratings. MadChess 2.2 is rated 2439 at bullet… Continue Reading

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Banks 68th Amateur Series Division 6

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MadChess 2.2 participated in Graham Banks’ 68th amateur tournament in division 6. 1 2 3 4 5 6 7 8 9 0 1 2 1 DanaSah 7.0 **** 11½0 11½½ ½½1½ 1110 1½½½ ½0½½ 11½1 ½1½½ ½111 11½½ 1111 31.5/44 2 tomitankChess 1.5 64-bit 00½1 **** 1½½½ 0½0½ ½½½½ 1½½1 1110 011½ ½½11 ½1½1 1110 ½111 28.0/44 3 Capivara LK 0.09b02g 64-bit 00½½ 0½½½ **** ½½½1 1001 11½1 ½110 ½101 01½0 1½11 1½01 1½1½ 26.0/44 4 Delocto 0.6 64-bit ½½0½ 1½1½ ½½½0 **** 0½01 ½11½ ½½1½ 110½ 1½10 0½½½ ½1½1 ½½11 25.5/44 5 CyberPagno 3.0 64-bit 0001 ½½½½ 0110 1½10… Continue Reading