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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Nf6 0
3 d6 0
4 d5 0
5 Ba6 0
6 Nh6 0
7 Ke6 0
8 Kg6 0
9 Kg7 0
10 Kf6 0
11 e6 0
12 Bb7 0
13 Qd8 0
14 a5 0
15 h6 0
16 e5 0
17 Bh6 0
18 Bg7 0
19 Rb8 0
20 h5 0