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

Book: ∞ / 0

# move proof disproof
1 g4 0
2 d6 0
3 Na6 0
4 Nc6 0
5 e5 0
6 Nf6 0
7 e6 0
8 d5 0
9 Kd8 0
10 Nh6 0
11 b6 0
12 a6 0
13 f6 0
14 Bg7 0
15 f5 0
16 a5 0
17 Bh6 0