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

Book: ∞ / 0

# move proof disproof
1 Nf7 0
2 Ng4 0
3 Bf8 0
4 Nf5 0
5 Rc8 0
6 a6 0
7 a5 0
8 f5 0
9 Re8 0
10 Bd8 0
11 Rb8 0
12 g5 0
13 Rg8 0
14 g6 0
15 Bd6 0
16 Ra8 0
17 Rf8 0
18 Rd8 0
19 Ng8 0