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

Book: ∞ / 0

# move proof disproof
1 e6 0
2 c4 0
3 a5 0
4 a6 0
5 f5 0
6 Na6 0
7 Bh6 0
8 e5 0
9 f6 0
10 g4 0
11 Nf6 0
12 Ke6 0
13 Bb7 0
14 Bg7 0
15 Kc6 0
16 Kd6 0
17 Kc7 0
18 Kd8 0
19 Ke8 0
20 Rg8 0
21 Nc6 0
22 Ba6 0