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

Book: ∞ / 0

# move proof disproof
1 c6 0
2 h5 0
3 h6 0
4 Re8 0
5 Nd7 0
6 Re7 0
7 a6 0
8 Rd8 0
9 a5 0
10 Rc8 0
11 Rd7 0
12 Rf7 0
13 g5 0
14 Rg8 0
15 Rb8 0
16 c5 0