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

Book: ∞ / 0

# move proof disproof
1 b5 0
2 b6 0
3 Ng8 0
4 Rb8 0
5 Ng4 0
6 Nc7 0
7 Nb8 0
8 Rg8 0
9 b3 0
10 f6 0
11 Nc5 0
12 Nf5 0
13 Kd6 0
14 Ke8 0
15 Kd8 0
16 f5 0
17 Bg7 0
18 d5 0
19 d6 0
20 Ke6 0
21 Kf6 0