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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 a5 0
3 Kc7 0
4 a6 0
5 Bg7 0
6 Na6 0
7 Nc6 0
8 b6 0
9 e6 0
10 Rh7 0
11 Ke8 0
12 e5 0
13 d6 0
14 h5 0
15 f5 0