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 g5 0
4 e5 0
5 e6 0
6 Nc6 0
7 Na6 0
8 g6 0
9 Rh7 0
10 h5 0
11 d6 0
12 f5 0
13 a6 0