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

Book: ∞ / 0

# move proof disproof
1 f4 0
2 g5 0
3 h5 0
4 Nh6 0
5 g6 0
6 a5 0
7 a6 0
8 Kd8 0
9 Kf7 0
10 d5 0
11 Na6 0
12 Nc6 0
13 h6 0
14 e6 0
15 Nf6 0
16 d6 0
17 e5 0