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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 a6 0
3 g5 0
4 Nc6 0
5 Kd6 0
6 Kc7 0
7 Kd8 0
8 Ke8 0
9 Ke6 0
10 Ba6 0
11 Nf6 0
12 g6 0
13 Na6 0
14 f6 0
15 Bb7 0
16 Kc6 0
17 e6 0
18 e5 0
19 f5 0
20 Nh6 0