Antichess Solution Explorer

r n b q k b n r p p . p p p p . . . . . . . . p . p . . . . . . . P . . . . . . . . . . P . . N P . P P . P P P R N B Q K . . R
MoveScore# Positions
f6#-22Loss42 856
♕c7#-19Loss11 702
♕a5#-18Loss1 335
a5#-16Loss330
♘f6#-15Loss81
e5#-15Loss59
d5#-15Loss59
f5#-15Loss56
b6#-15Loss54
♘c6#-15Loss41
♘a6#-15Loss41
h5#-15Loss33
g5#-15Loss29
♖h7#-15Loss22
g6#-15Loss22
♕b6#-14Loss75
e6#-14Loss32
a6#-14Loss19
d6#-14Loss15
1. e3 c6 2. ♗b5 cxb5 3. b4 h6 4. ♘h3
Andryushkov DefenceFrâncu-Nye 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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