Antichess Solution Explorer

r n b . k b n r p . . p p p p p p . . . . . . . . . p . P . . . . . . . . . Q . . . . . . . . . P P P K . P P P R N B . . . N R
MoveScore# Positions
♘f6#-17Loss1 515
g5#-16Loss843
g6#-15Loss714
f6#-15Loss256
d6#-14Loss45
♔d8#-14Loss21
h6#-14Loss13
♗b7#-13Loss85
♘c6#-13Loss64
a5#-13Loss33
f5#-13Loss27
c4#-13Loss21
e6#-13Loss21
♘h6#-13Loss19
d5#-13Loss12
h5#-12Loss21
1. e3 c6 2. e4 c5 3. ♗a6 bxa6 4. e5 ♕a5 5. ♕g4 ♕xd2 6. ♔xd2
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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