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

Book: ∞ / 0

# move proof disproof
1 Rh8 0
2 e5 0
3 Bb7 0
4 a5 0
5 Rg8 0
6 d6 0
7 Ba6 0
8 Rb8 0
9 a6 0
10 Re8 0
11 Rf8 0
12 h5 0
13 d5 0