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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Kf7 0
3 Kd8 0
4 Nf5 0
5 a4 0
6 Ng8 0
7 Ng4 0
8 Rg8 0
9 g5 0
10 e5 0
11 Nc6 0
12 Nf7 0
13 Kd7 0
14 Nd7 0
15 Na6 0
16 g6 0