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

Book: ∞ / 0

# move proof disproof
1 g5 0
2 g6 0
3 Bb7 0
4 Nc2 0
5 Rf8 0
6 e4 0
7 Rg8 0
8 Rd8 0
9 d6 0
10 Ba6 0
11 Nb3 0
12 Re8 0
13 d5 0
14 h6 0
15 Rb8 0
16 a6 0