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

Book: ∞ / 0

# move proof disproof
1 Bg7 0
2 Bf8 0
3 Nc6 0
4 a6 0
5 e6 0
6 Na6 0
7 Bg5 0
8 e5 0
9 Ke6 0
10 a5 0
11 f3 0
12 Kc7 0
13 Bb7 0
14 Kd8 0
15 Ba6 0
16 Kc6 0
17 Kd6 0
18 Ke8 0