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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Ba6 0
3 Nh6 0
4 h6 0
5 c4 0
6 Rb8 0
7 h5 0
8 Bb7 0
9 Kc6 0
10 Kd6 0
11 Kc7 0
12 Kd8 0
13 Ke8 0
14 Ke6 0
15 e5 0
16 e6 0
17 f5 0
18 g5 0