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

Book: ∞ / 0

# move proof disproof
1 Kf7 0
2 f4 0
3 d5 0
4 e6 0
5 g6 0
6 g5 0
7 a5 0
8 h6 0
9 Nf6 0
10 a6 0
11 b6 0
12 Nc6 0
13 Na6 0
14 h5 0
15 Nh6 0
16 d6 0
17 e5 0
18 Kd8 0