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

Book: ∞ / 0

# move proof disproof
1 Kc7 0
2 c5 0
3 Kc8 0
4 Bg7 0
5 Nh6 0
6 a5 0
7 f6 0
8 f5 0
9 Bh6 0
10 Kb7 0
11 Nf6 0
12 a6 0
13 e6 0