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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 e6 0
3 f6 0
4 a5 0
5 Nc6 0
6 Na6 0
7 b6 0
8 d5 0
9 g5 0
10 a6 0
11 g6 0
12 Kd8 0
13 f5 0
14 d6 0