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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 a6 0
3 e6 0
4 Rb8 0
5 e5 0
6 Kg7 0
7 Ke8 0
8 Bb7 0
9 Nh6 0
10 Nf6 0
11 Ba6 0
12 Bh6 0
13 h5 0
14 Bg7 0
15 d5 0
16 g5 0
17 d6 0
18 Kf6 0
19 Ke6 0
20 h6 0