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

Book: ∞ / 0

# move proof disproof
1 e2 0
2 f5 0
3 c5 0
4 c6 0
5 Ba6 0
6 Nc6 0
7 Na6 0
8 a6 0
9 Ke6 0
10 Kc6 0
11 Kd6 0
12 Ke7 0
13 Kd8 0
14 Ke8 0
15 a5 0
16 Bb7 0