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

Book: ∞ / 0

# move proof disproof
1 g5 0
2 Nh6 0
3 Nf6 0
4 g6 0
5 Rc8 0
6 Ra7 0
7 Kd7 0
8 Kf7 0
9 Kd8 0
10 h5 0
11 Rb8 0
12 e4 0
13 h6 0
14 Rd8 0
15 c5 0
16 e6 0