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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Qd8 0
3 f6 0
4 Rg8 0
5 Bh6 0
6 f5 0
7 Nf6 0
8 g4 0
9 Bg7 0
10 Nc6 0
11 Bb7 0
12 Kd6 0
13 Kc6 0
14 e6 0
15 Ke6 0
16 e5 0
17 Na6 0
18 Kd8 0
19 Kc7 0
20 Ba6 0