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

Book: ∞ / 0

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