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

Book: ∞ / 0

# move proof disproof
1 Rf8 0
2 Nf6 0
3 Nb8 0
4 Re8 0
5 c5 0
6 Rg8 0
7 Nb6 0
8 Rb8 0
9 e4 0
10 Rh8 0
11 Rd8 0
12 Rc8 0
13 c6 0
14 a6 0
15 a5 0
16 Nc5 0
17 Nf8 0