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

Book: ∞ / 0

# move proof disproof
1 g4 0
2 f6 0
3 Nf6 0
4 Ke6 0
5 a6 0
6 f5 0
7 Bg7 0
8 Ba6 0
9 Bb7 0
10 c5 0
11 Na6 0
12 e5 0
13 e6 0
14 Ke8 0
15 Kd8 0
16 Kc7 0
17 Kd6 0
18 a5 0
19 Bh6 0
20 Nh6 0