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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 c5 0
3 Nf6 0
4 Ke6 0
5 Qe8 0
6 Bg7 0
7 Kd6 0
8 Bh6 0
9 c6 0
10 e6 0
11 e5 0
12 Bb7 0
13 f4 0
14 Ke8 0
15 Kc6 0
16 Ba6 0
17 Rg8 0
18 Na6 0
19 g4 0
20 Nc6 0