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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 c5 0
3 Ke8 0
4 Nh6 0
5 Bh6 0
6 h6 0
7 Ra7 0
8 f6 0
9 h5 0
10 Nf6 0
11 Ke6 0
12 e6 0
13 Bb7 0
14 g5 0
15 f5 0
16 Bg7 0
17 Kc7 0
18 Kd8 0
19 Kd6 0
20 e5 0