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

Book: ∞ / 0

# move proof disproof
1 Nc6 0
2 Nh6 0
3 d6 0
4 Kf7 0
5 Kd8 0
6 b6 0
7 a5 0
8 h6 0
9 d5 0
10 e6 0
11 Na6 0
12 e4 0
13 g6 0
14 h5 0
15 Nf6 0
16 g5 0
17 a6 0