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

Book: ∞ / 0

# move proof disproof
1 g5 0
2 Nc6 0
3 f5 0
4 g6 0
5 Rd8 0
6 Nc8 0
7 Ng6 0
8 Rc8 0
9 f6 0
10 Nf5 0
11 Nh6 0
12 Nd5 0
13 Rb8 0
14 Nf6 0
15 Ra8 0