Chess engine: Seawall,
Rating CEDR=2668 Author - Patrick Heck
This is an [UCI] chess engine. It started as an attempt to build a minimal program that was able to play chess. Over time, it has gained features to make it stronger, but it still implements only a subset of UCI necessary to play games, and there's almost no evaluation.
Some ideas have been borrowed more directly than others; the obstruction difference algorithm is based on the version from [Chess Movegen], while the use of a low pass filter and capture history for move ordering were borrowed from [Stockfish].
github:https://github.com/petur/seawall/releases/tag/r20230316
Individual statistics: Seawall 20230105 - 133 games (+ 39,= 17,- 77), 35.7 %
Critter 1.6a : 6 (+ 0,= 1,- 5), 8.3 %
Fritz 17 : 2 (+ 0,= 0,- 2), 0.0 %
Asymptote 0.8 : 1 (+ 0,= 0,- 1), 0.0 %
Devel 4.0.2.3 : 1 (+ 0,= 1,- 0), 50.0 %
Barbarossa 0.6.0 : 1 (+ 1,= 0,- 0), 100.0 %
Supernova 2.4 : 1 (+ 0,= 1,- 0), 50.0 %
Zevra 2.5 : 1 (+ 0,= 1,- 0), 50.0 %
Loki 3.5.0 : 1 (+ 0,= 0,- 1), 0.0 %
Cosette 5.1 : 1 (+ 1,= 0,- 0), 100.0 %
FrankyGo 1.0.3 : 1 (+ 1,= 0,- 0), 100.0 %
Pawn 2021-09-22 : 1 (+ 1,= 0,- 0), 100.0 %
Journeyman 2.1 : 1 (+ 0,= 0,- 1), 0.0 %
Anka 0.6.3 : 1 (+ 1,= 0,- 0), 100.0 %
Popochin 4.3 : 1 (+ 1,= 0,- 0), 100.0 %
FoxSEE 8.2 : 1 (+ 0,= 1,- 0), 50.0 %
Blunder 8.5.5 : 1 (+ 0,= 0,- 1), 0.0 %
Ceibo 0.9 : 1 (+ 0,= 0,- 1), 0.0 %
Dumb 1.11 : 1 (+ 1,= 0,- 0), 100.0 %
Frozenight 5.1.0 : 1 (+ 0,= 0,- 1), 0.0 %
Francesca 0.32 : 1 (+ 0,= 0,- 1), 0.0 %
Altair 1.0.0 : 1 (+ 1,= 0,- 0), 100.0 %
Prophet 4.3 : 1 (+ 1,= 0,- 0), 100.0 %
Fornax 4.0 : 3 (+ 2,= 1,- 0), 83.3 %
ShenYu 1.0.1 : 1 (+ 1,= 0,- 0), 100.0 %
Lynx 0.13.0 : 1 (+ 1,= 0,- 0), 100.0 %
Stockfish 15.1 : 2 (+ 0,= 0,- 2), 0.0 %
Alexandria 3.1.0 : 1 (+ 0,= 0,- 1), 0.0 %
Cdrill 2000 : 2 (+ 2,= 0,- 0), 100.0 %
Avalanche 1.3.1 : 1 (+ 0,= 0,- 1), 0.0 %
Eubos 2.17 : 2 (+ 2,= 0,- 0), 100.0 %
Viridithas 6.0.0 : 1 (+ 0,= 0,- 1), 0.0 %
Velvet 5.0.0 : 4 (+ 0,= 0,- 4), 0.0 %
Charisma Diamond : 2 (+ 0,= 0,- 2), 0.0 %
Minic 3.33 : 4 (+ 0,= 0,- 4), 0.0 %
Charisma Gold : 2 (+ 0,= 0,- 2), 0.0 %
Cheers 0.1 : 3 (+ 1,= 2,- 0), 66.7 %
Mittens 0.9 : 6 (+ 0,= 0,- 6), 0.0 %
Peacekeeper 1.01 : 4 (+ 2,= 2,- 0), 75.0 %
Uralochka 3.39d : 6 (+ 0,= 0,- 6), 0.0 %
RukChess 3.0.13 NNUE2 : 7 (+ 0,= 0,- 7), 0.0 %
Stockfish 20230102 : 2 (+ 0,= 0,- 2), 0.0 %
Stockfish 20230101 : 2 (+ 0,= 0,- 2), 0.0 %
Stockfish 20230104 : 2 (+ 0,= 0,- 2), 0.0 %
Rebel 16.1 : 5 (+ 0,= 0,- 5), 0.0 %
Captain 3.1 : 4 (+ 4,= 0,- 0), 100.0 %
Mediocre 0.5 : 2 (+ 2,= 0,- 0), 100.0 %
Jangine 2022-12-27 : 3 (+ 3,= 0,- 0), 100.0 %
Mayhem 8.0 : 2 (+ 1,= 1,- 0), 75.0 %
Sting Black Hole 3 : 2 (+ 0,= 0,- 2), 0.0 %
Blue Marlin 15.6 : 2 (+ 0,= 0,- 2), 0.0 %
BrainLearn 21.1 : 2 (+ 0,= 0,- 2), 0.0 %
Carp 1.1.0 : 3 (+ 3,= 0,- 0), 100.0 %
Zagreus 1.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
Clovis I : 2 (+ 0,= 1,- 1), 25.0 %
Raven 1.30 : 2 (+ 0,= 2,- 0), 50.0 %
Koivisto 8.17 : 2 (+ 0,= 0,- 2), 0.0 %
Peacekeeper 1.1 : 2 (+ 1,= 1,- 0), 75.0 %
Akimbo 0.1.1 : 3 (+ 1,= 1,- 1), 50.0 %
BlackCore 5.0 : 3 (+ 0,= 0,- 3), 0.0 %
Stockfish 20230114 : 2 (+ 0,= 0,- 2), 0.0 %
4ku 1.1 : 2 (+ 0,= 1,- 1), 25.0 %
Tofiks 1.0 : 1 (+ 1,= 0,- 0), 100.0 %
MagiC 2.9 : 1 (+ 1,= 0,- 0), 100.0 %
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