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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 Bg7 0
3 a6 0
4 Kd5 0
5 Kc5 0
6 Na6 0
7 Kc7 0
8 f6 0
9 e6 0
10 Kc6 0
11 Ke6 0
12 Bb7 0
13 h5 0
14 Nc6 0
15 f5 0
16 Ke5 0
17 Ba6 0