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

Book: ∞ / 0

# move proof disproof
1 e3 0
2 f5 0
3 Na6 0
4 Nc6 0
5 Ba6 0
6 a5 0
7 a6 0
8 c6 0
9 Bb7 0
10 Ke6 0
11 c5 0
12 Kc6 0
13 Kd8 0
14 Ke8 0
15 Ke7 0
16 Kd6 0