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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Nd8 0
3 Ne5 0
4 g4 0
5 Kd7 0
6 Na6 0
7 Nc6 0
8 Nd6 0
9 Nh8 0
10 Nh6 0
11 Rg8 0
12 Rh8 0
13 Kd8 0
14 a6 0
15 Ke7 0
16 Nd7 0