Antichess Solution Explorer

r . b q k b n r p . p p p p p p p . n . . . . . . . . . . . . Q . . . . . . . . . . . . P . . . P P P P . P P P R N B . K . N R
MoveScore# Positions
♘d4#-42Loss5 357 381
♖b8#-41Loss23 650 756
a5#-28Loss560 092
♘h6#-23Loss24 557
♘b8#-21Loss12 924
♘e5#-20Loss6 017
h6#-18Loss1 387
♘b4#-17Loss1 108
♘a5#-17Loss701
g6#-16Loss129
e6#-15Loss216
g5#-15Loss116
f6#-15Loss85
d6#-15Loss36
d5#-15Loss31
♘f6#-15Loss25
f5#-14Loss26
♗b7#-14Loss25
e5#-14Loss24
1. e3 ♘c6 2. ♗a6 bxa6 3. ♕h5
— Balkan DefenceCzech Attack
Open on Lichess

The site features solutions for some antichess openings, providing a path that White or Black can follow so as to defeat any defense. The solutions will be gradually updated and supplemented.

The solutions of Mark Watkins, Klaas Steenhuis, and Cătălin Frâncu were partially used. Pierre Caetano's suggestions regarding reducing the maximum winning length are included in 1.f4, 1.♘c3, 1.e3 f6, and 1.e3 b5 lines. Credit to Vladica Andrejić for most of the opening names and their proof status. Pedro Re's suggestions regarding reducing the maximum winning length are included in 1.a3, 1.h3, 1.c3, 1.b4, 1.♘c3, 1.h4, 1.f4, 1.♘f3, 1.c4 ♘h6, 1.c4 b5, 1.e3 c6, 1.e3 b5 2.♗xb5 ♗a6, 1.e3 c5, and 1.e3 b5. Yabba's suggestions are included in 1.h3, 1.e3 g5, 1.e3 ♘c6, 1.e3 c5 2.♗b5 e6/a5/b6/♕c7/♕a5/Nh6, and 1.e3 b5 2.♗xb5 e6 3.♗xd7 ♗xd7 4.♘h3 ♘e7. Awkwardmammal's suggestions are included in 1.e3 b6, 1.e3 g5, and 1.e3 a5. Thanks to ChessDemon989 for his help with comprehension of the technical aspects of Watkins solutions and the factoradic in the context of its application to endgame tablebases.
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