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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 Nc6 0
3 Na6 0
4 a6 0
5 a5 0
6 Rh7 0
7 h5 0
8 f5 0
9 e6 0
10 d6 0
11 e5 0
12 b4 0