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

Book: ∞ / 0

# move proof disproof
1 Ke6 0
2 Kf7 0
3 Ke5 0
4 Na6 0
5 Nd7 0
6 Nh6 0
7 a5 0
8 Kg5 0
9 Kf5 0
10 a6 0
11 g6 0
12 Kg6 0
13 g5 0
14 e6 0
15 e5 0