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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 d5 0
3 e6 0
4 g4 0
5 e5 0
6 Nf6 0
7 Bg7 0
8 Ra7 0
9 h5 0
10 Rh7 0
11 d6 0
12 Bb7 0