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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 a5 0
3 Nf7 0
4 Kd6 0
5 Bg7 0
6 Na6 0
7 Nbc6 0
8 Ndc6 0
9 Ba6 0
10 e5 0
11 h6 0
12 h5 0
13 e6 0
14 Bh6 0
15 Nb7 0
16 Rg8 0
17 Bb7 0
18 Ke6 0
19 Ne6 0
20 Kc7 0
21 Kc6 0
22 Ke8 0