Chess engine: Seawall 20221005

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Chess engine: Seawall,
Rating CEDR=2346  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/r20221105

Individual statistics: Seawall 20220918 - 68 games (+ 13,=  7,- 48), 24.3 %

Baron 3.44.1                  :   1 (+  0,=  0,-  1),  0.0 %
Dimitri 5.2.3                 :   1 (+  0,=  0,-  1),  0.0 %
Asymptote 0.8                 :   2 (+  0,=  0,-  2),  0.0 %
Devel 4.0.2.3                 :   1 (+  0,=  0,-  1),  0.0 %
Barbarossa 0.6.0              :   1 (+  0,=  0,-  1),  0.0 %
ClassicAra 0.9.9              :   2 (+  0,=  0,-  2),  0.0 %
Supernova 2.4                 :   1 (+  0,=  0,-  1),  0.0 %
Zevra 2.5                     :   1 (+  0,=  0,-  1),  0.0 %
Loki 3.5.0                    :   2 (+  0,=  1,-  1), 25.0 %
MagiC 2                       :   1 (+  1,=  0,-  0), 100.0 %
Cosette 5.1                   :   2 (+  0,=  0,-  2),  0.0 %
FrankyGo 1.0.3                :   2 (+  1,=  1,-  0), 75.0 %
Pawn 2021-09-22               :   2 (+  1,=  1,-  0), 75.0 %
Vafra 3.3.2                   :   1 (+  0,=  0,-  1),  0.0 %
Mayhem 7.3                    :   1 (+  1,=  0,-  0), 100.0 %
Journeyman 2.1                :   1 (+  0,=  0,-  1),  0.0 %
Fisherov chess monk 1.2       :   2 (+  0,=  0,-  2),  0.0 %
Anka 0.6.3                    :   2 (+  1,=  0,-  1), 50.0 %
Popochin 4.3                  :   1 (+  0,=  0,-  1),  0.0 %
Sapeli 2.0                    :   1 (+  1,=  0,-  0), 100.0 %
FoxSEE 8.2                    :   1 (+  1,=  0,-  0), 100.0 %
Blunder 8.5.5                 :   2 (+  0,=  1,-  1), 25.0 %
Ceibo 0.9                     :   1 (+  0,=  0,-  1),  0.0 %
Dumb 1.11                     :   2 (+  0,=  2,-  0), 50.0 %
Avalanche 1.2.0               :   1 (+  0,=  0,-  1),  0.0 %
Fornax 3.0                    :   1 (+  0,=  0,-  1),  0.0 %
BlackCore 1.1                 :   1 (+  0,=  0,-  1),  0.0 %
Fatalii 0.3.0                 :   1 (+  1,=  0,-  0), 100.0 %
RukChess 3.0 2022-09-05       :   1 (+  0,=  0,-  1),  0.0 %
Ethereal 13.88                :   2 (+  0,=  0,-  2),  0.0 %
Expositor 2BR17               :   2 (+  0,=  0,-  2),  0.0 %
Lc0 0.30.0-dev+git.6d9bd9d    :   2 (+  0,=  0,-  2),  0.0 %
Kayra 1.6                     :   2 (+  0,=  0,-  2),  0.0 %
Koivisto 8.16                 :   2 (+  0,=  0,-  2),  0.0 %
Dark Sister 1.9a              :   2 (+  0,=  0,-  2),  0.0 %
Caissa 1.0                    :   2 (+  0,=  0,-  2),  0.0 %
Arche 0.3.5                   :   2 (+  2,=  0,-  0), 100.0 %
StockNemo 5.7.0.0             :   2 (+  0,=  0,-  2),  0.0 %
Infrared 2.0.2                :   2 (+  0,=  1,-  1), 25.0 %
Alexandria 3.0                :   1 (+  0,=  0,-  1),  0.0 %
Trinket 3.0.0                 :   1 (+  1,=  0,-  0), 100.0 %
Smallbrain 6.0                :   1 (+  0,=  0,-  1),  0.0 %
RapChess 2022-10-17           :   1 (+  1,=  0,-  0), 100.0 %
BlackCore 2.0                 :   1 (+  0,=  0,-  1),  0.0 %
Viridithas 3.0.0              :   1 (+  0,=  0,-  1),  0.0 %
Altair 1.0.0                  :   1 (+  0,=  0,-  1),  0.0 %
Prophet 4.3                   :   1 (+  0,=  0,-  1),  0.0 %
QuintBot 1.0.0                :   1 (+  1,=  0,-  0), 100.0 %


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