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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 Kd8 0
3 a5 0
4 f6 0
5 Rh7 0
6 d6 0
7 g4 0
8 e6 0
9 h5 0
10 e5 0
11 Nf6 0
12 f5 0
13 Bg7 0