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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Bh6 0
3 Nf6 0
4 c5 0
5 Nc6 0
6 Kb7 0
7 e5 0
8 e6 0
9 f6 0
10 f5 0
11 Nh6 0
12 Bg7 0
13 Nd7 0
14 Na6 0
15 g4 0
16 Kd8 0
17 Kd7 0
18 c6 0