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

Book: ∞ / 0

# move proof disproof
1 b6 0
2 b4 0
3 Kd8 0
4 d6 0
5 g4 0
6 f6 0
7 Nf6 0
8 e6 0
9 Bg7 0
10 d5 0
11 Rh7 0
12 h5 0
13 e5 0
14 f5 0