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

Book: ∞ / 0

# move proof disproof
1 Bg7 0
2 Na6 0
3 e5 0
4 a5 0
5 e6 0
6 Kd6 0
7 f5 0
8 a6 0
9 Kc7 0
10 Kc8 0
11 Ke8 0
12 Kd8 0
13 f6 0
14 Ke6 0
15 h5 0
16 Nf6 0