Antichess Solution Explorer

r n b q k b n r p p . p p p p . . . p . . . . p . . . . P . . . . . . . . . . . . . . . . . . . P P P P . P P P R N B Q K B N R
MoveScore# Positions
♘f6#-22Loss11 370
b5#-22Loss8 814
♘a6#-22Loss5 197
f6#-21Loss19 490
f5#-21Loss19 490
g5#-21Loss17 527
a6#-20Loss18 341
♕c7#-20Loss7 323
c5#-20Loss6 121
♖h7#-20Loss5 249
♕b6#-19Loss6 070
♕a5#-19Loss5 531
h5#-19Loss4 928
g6#-19Loss2 348
b6#-18Loss4 340
d6#-18Loss2 963
d5#-18Loss2 963
a5#-18Loss1 632
e6#-16Loss85
1. e3 c6 2. e4 h6 3. e5
Andryushkov DefenceSteenhuis's Proof
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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