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

Book: ∞ / 0

# move proof disproof
1 e6 0
2 Bh3 0
3 f6 0
4 Nf5 0
5 e5 0
6 Rg8 0
7 Bd7 0
8 a5 0
9 g6 0
10 a6 0
11 Ng8 0
12 Bb7 0
13 f5 0
14 g5 0
15 Bf5 0
16 Be6 0
17 Bg4 0
18 Ba6 0
19 Ng4 0