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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 e6 0
3 e5 0
4 Nf6 0
5 Ke8 0
6 Kd8 0
7 Kc7 0
8 g4 0
9 Ba6 0
10 Na6 0
11 Kd6 0
12 Kc6 0
13 Bh6 0
14 a2 0
15 Bb7 0
16 Bg7 0
17 Nc6 0
18 f6 0
19 Ke6 0
20 Nh6 0