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

Book: ∞ / 0

# move proof disproof
1 g4 0
2 Na6 0
3 a5 0
4 a6 0
5 e6 0
6 c5 0
7 Nf6 0
8 Bh6 0
9 f6 0
10 Kd6 0
11 Ke6 0
12 Kc7 0
13 Kc8 0
14 Kd8 0
15 Ke8 0
16 Bg7 0
17 Rg8 0
18 e5 0
19 f5 0