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

Book: ∞ / 0

# move proof disproof
1 Ke6 0
2 g6 0
3 a6 0
4 Nh6 0
5 Kd8 0
6 Ke8 0
7 a5 0
8 Rb8 0
9 Bb7 0
10 Kd6 0
11 h5 0
12 Kc7 0
13 Kc6 0
14 e5 0
15 f5 0
16 g5 0
17 e6 0
18 h6 0
19 c4 0
20 Ba6 0