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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 c6 0
3 f6 0
4 g6 0
5 g5 0
6 Nh6 0
7 Kd6 0
8 a6 0
9 Bb7 0
10 Nf6 0
11 Nc6 0
12 e5 0
13 e6 0
14 Kd8 0
15 Ke8 0
16 Kc6 0
17 Ke6 0
18 a5 0
19 Na6 0
20 Ba6 0