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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Bb7 0
3 a5 0
4 Ba6 0
5 Na6 0
6 Bh6 0
7 Ke8 0
8 Kd8 0
9 Kc7 0
10 Kd6 0
11 Kc6 0
12 Nf6 0
13 Nh6 0
14 f5 0
15 Nc6 0
16 e6 0
17 e5 0
18 g5 0
19 Ke6 0
20 f6 0
21 Bg7 0