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

Book: ∞ / 0

# move proof disproof
1 a4 0
2 Ba6 0
3 Bb7 0
4 h6 0
5 g5 0
6 Ra6 0
7 e5 0
8 h5 0
9 Rc7 0
10 Rd7 0
11 g6 0
12 Ra8 0
13 Rg8 0
14 Bd7 0
15 Rb7 0