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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 c5 0
3 Kd8 0
4 Kf7 0
5 Bb7 0
6 g6 0
7 d6 0
8 a5 0
9 h6 0
10 g5 0
11 e6 0
12 h5 0
13 Nh6 0
14 Nf6 0
15 e5 0