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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 e6 0
3 g5 0
4 f5 0
5 Ba6 0
6 Na6 0
7 Nc6 0
8 e5 0
9 d5 0
10 d6 0
11 a6 0
12 Kd8 0
13 Kf7 0
14 Rh7 0
15 Bg7 0
16 h5 0
17 Bb7 0