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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 h6 0
3 Nf7 0
4 Na6 0
5 e5 0
6 g4 0
7 Kc7 0
8 Ba6 0
9 Ne6 0
10 e6 0
11 Kd6 0
12 Ke6 0
13 Bg7 0
14 Nb7 0
15 Rg8 0
16 Bb7 0
17 Ke8 0
18 a6 0
19 Bh6 0
20 c5 0