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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 e6 0
3 a5 0
4 Ke6 0
5 Rg8 0
6 g6 0
7 Ba6 0
8 g5 0
9 e5 0
10 Kc6 0
11 Nf6 0
12 Kc7 0
13 Kd6 0
14 a6 0
15 f5 0
16 Ng5 0
17 Kd8 0
18 Ke8 0
19 Nc6 0
20 Bb7 0
21 Na6 0