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

Book: ∞ / 0

# move proof disproof
1 Bb7 0
2 Ra8 0
3 Re7 0
4 Re8 0
5 Bd7 0
6 e5 0
7 h5 0
8 Rd7 0
9 Rd8 0
10 Rg8 0
11 Rg7 0
12 Rc7 0
13 Rf8 0
14 Rf7 0
15 Rb7 0