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

Book: ∞ / 0

# move proof disproof
1 Bg7 0
2 Bh6 0
3 e5 0
4 f5 0
5 c5 0
6 Ra7 0
7 Ke6 0
8 g4 0
9 e6 0
10 Kd6 0
11 Rg8 0
12 Bb7 0
13 Ke8 0
14 Kd8 0
15 Kc7 0