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

Book: ∞ / 0

# move proof disproof
1 c5 0
2 Rc8 0
3 Rc7 0
4 Rf7 0
5 Nh7 0
6 Rg8 0
7 h4 0
8 g5 0
9 Re7 0
10 Re8 0
11 a6 0
12 Nd7 0
13 Rh7 0
14 a5 0
15 Rd7 0
16 Rd8 0
17 Rb8 0
18 Rb7 0