Click on the third or sixth rank to set the en passant target square.

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Ba8 0
3 Ba6 0
4 c5 0
5 h5 0
6 Bg7 0
7 Bc8 0
8 a5 0
9 Nf6 0
10 Nh6 0
11 e5 0
12 e6 0
13 Bh6 0
14 h6 0