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

Book: ∞ / 0

# move proof disproof
1 a4 0
2 f5 0
3 Kc6 0
4 e5 0
5 Ke6 0
6 c5 0
7 Nc6 0
8 Bb7 0
9 f6 0
10 Ba6 0
11 Ke8 0
12 Na6 0
13 h5 0
14 c6 0
15 Ra6 0
16 Ra7 0
17 Qe8 0
18 Bg7 0
19 Kd6 0
20 Nf6 0
21 e6 0