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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 a5 0
3 e6 0
4 f5 0
5 Nh6 0
6 a6 0
7 d5 0
8 Nf6 0
9 Kd8 0
10 Kc7 0
11 g6 0
12 f6 0
13 d6 0
14 b6 0
15 g5 0
16 h6 0
17 h5 0
18 Nc6 0
19 Na6 0