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

Book: ∞ / 0

# move proof disproof
1 Bb7 0
2 Nf5 0
3 Ng8 0
4 Ba6 0
5 d5 0
6 h4 0
7 a6 0
8 Nf7 0
9 Ng4 0
10 Rb8 0
11 d6 0