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

Book: ∞ / 0

# move proof disproof
1 g4 0
2 d5 0
3 Rb8 0
4 Ra7 0
5 Rg8 0
6 Bg7 0
7 Bh6 0
8 h5 0
9 e5 0
10 h6 0
11 e6 0
12 Qg6 0
13 d6 0
14 Qd8 0
15 Bb7 0
16 Qh5 0
17 Qf7 0