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

Book: ∞ / 0

# move proof disproof
1 Rc8 0
2 Re8 0
3 a5 0
4 e6 0
5 c6 0
6 Rb8 0
7 Ne6 0
8 c5 0
9 Nd7 0
10 Nh7 0
11 Rg7 0
12 Rh8 0
13 g5 0
14 h4 0
15 a6 0
16 Rd8 0