Author: Erik Madsen

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The Rookies And The Assassin

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MadChess 3.0 participated in a tournament Graham Banks arranged, named The Rookies And The Assassin. 1 2 3 4 5 6 7 8 9 0 1 2 1 CM9000 Assassin **** 0½10 ½½11 1½½1 101½ ½1½0 ½01½ 0101 ½011 1½11 01½1 1111 28.5/44 2 RookieMonster 1.9.6-dev 64-bit 1½01 **** 1110 0101 01½1 1011 ½½½½ 0½00 1101 100½ 0111 1101 26.0/44 3 Lozza 2.1 64-bit ½½00 0001 **** 100½ 1½0½ 1101 ½½½½ 11½1 ½½½½ 111½ ½111 00½½ 24.0/44 4 Betsabe II 2020 0½½0 1010 011½ **** 1½½½ 10½1 1½1½ ½½½1 ½½00 0100 1½1½ 11½0 23.5/44 503.00 5 Blunder 7.6.0 64-bit 010½… Continue Reading

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Banks 91st Amateur Series Division 7

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MadChess 3.0 participated in Graham Banks’ 91st amateur tournament in division 7. 1 2 3 4 5 6 7 8 9 0 1 2 1 Drosophila 1.6 64-bit **** 111½ 10½0 ½0½½ 1111 1101 1011 ½1½1 1111 1½01 101½ ½½11 31.5/44 2 MadChess 3.0 64-bit 000½ **** ½1½½ 1½½1 011½ 1½1½ 101½ ½0½½ 101½ 0½11 1½11 1½11 27.5/44 3 Delocto 200419 64-bit 01½1 ½0½½ **** ½½01 ½1½0 110½ 1½11 0010 ½1½½ 1½1½ 11½½ ½111 27.0/44 4 Betsabe II 2020 ½1½½ 0½½0 ½½10 **** 0011 ½1½1 0½00 ½1½1 ½½11 1101 11½½ ½½11 26.0/44 5 Raven 1.20 64-bit 0000 100½ ½0½1 1100… Continue Reading

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Toxic Environment

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MadChess 3.0 participated in a tournament Graham Banks arranged, named Toxic Environment. 1 2 3 4 5 6 7 8 9 0 1 RookieMonster 1.9.6-dev 64-bit **** 1½½1 1110 0100 111½ ½½1½ 0½01 ½110 1½11 01½1 23.0/36 401.75 2 Delocto 200419 64-bit 0½½0 **** ½½11 1½½0 100½ 1101 0½½1 1111 0½11 1111 23.0/36 377.50 3 CM11th Toxic 0001 ½½00 **** 11½1 1101 ½011 101½ ½1½0 0½11 1½½1 21.0/36 4 Blunder 7.6.0 64-bit 1011 0½½1 00½0 **** 0½11 ½1½1 011½ 01½1 ½1½0 01½1 20.5/36 5 Betsabe II 2020 000½ 011½ 0010 1½00 **** ½01½ ½1½½ ½110 1001 1111 18.5/36 6 Zevra… Continue Reading

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MadChess 3.1 Beta d691b32 (Pawn Structure)

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I added evaluation of two pawn structure features to MadChess 3.1 Beta. Isolated Pawns Doubled Pawns In addition to pawn structure evaluation, I made other code quality improvements in a series of Pull Requests. PR 24: Upgrade to .NET 6 PR 25: Tune Quiet Positions: Added UCI command that exports quiet positions (static score and quiet score differ <= given centipawns) from a PGN file. Tuner calls Eval.GetStaticScore against QuietPositions.txt instead of Search.GetQuietScore against Games.pgn. PR 26: Lone King Evaluation: Consider any endgame with lone king a simple endgame (instead of only K vrs KQ or KR). PR 27: Remove… Continue Reading

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Banks 90th Amateur Series Division 7

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MadChess 3.0 participated in Graham Banks’ 90th amateur tournament in division 7. 1 2 3 4 5 6 7 8 9 0 1 2 1 Blunder 7.6.0 64-bit *** 00 ½01 ½1 100 110 111 1½½ 111 110 1½ 1½ 19.0/29 2 Drosophila 1.6 64-bit 11 *** 11 000 11 010 ½0½ 01 1½ 110 110 111 17.5/28 3 Protej 0.6.1 64-bit ½10 00 *** ½01 ½1½ 1½ ½½ 1½½ 110 ½1 011 ½1 16.5/28 4 Zevra 2.5 64-bit ½0 111 ½10 *** 10 0½1 01½ 00 01 11½ 1½ 1½½ 16.0/28 5 MadChess 3.0 64-bit 011 00 ½0½ 01… Continue Reading