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 Rb8 0
4 Kf7 0
5 Ra7 0
6 Kd8 0
7 Bg7 0
8 d6 0
9 h5 0
10 Bb7 0
11 Rg8 0
12 d5 0