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

Book: ∞ / 0

# move proof disproof
1 g4 0
2 f5 0
3 Rb8 0
4 Nb5 0
5 Rd8 0
6 Rc8 0
7 Nf6 0
8 Nc8 0
9 Nh6 0
10 Re8 0
11 f6 0
12 Nc6 0
13 Bh6 0
14 Bg7 0
15 e6 0
16 e5 0