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

Book: ∞ / 0

# move proof disproof
1 Re8 0
2 Rd8 0
3 f6 0
4 g6 0
5 g5 0
6 e5 0
7 Nac8 0
8 Nec8 0
9 Ng8 0
10 Nac6 0
11 f5 0
12 Nec6 0
13 Ng6 0
14 Nd5 0
15 Rb8 0
16 Nf5 0
17 Rc8 0
18 Nb5 0