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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 e6 0
3 Na6 0
4 Kc7 0
5 e5 0
6 a5 0
7 Kd8 0
8 Nc6 0
9 Kd6 0
10 Kc6 0
11 Ba6 0
12 Ke8 0
13 Bb7 0
14 f5 0
15 Nf6 0
16 f6 0
17 Ke6 0
18 g4 0
19 Bg7 0
20 Nh6 0
21 Bh6 0