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

Book: ∞ / 0

# move proof disproof
1 Na6 0
2 h5 0
3 e5 0
4 e6 0
5 Nc6 0
6 Ke8 0
7 Kd8 0
8 Kc7 0
9 Nf6 0
10 Kd6 0
11 Kc6 0
12 f5 0
13 f6 0
14 a5 0
15 Rh7 0
16 Ke6 0
17 Bg7 0
18 Ba6 0
19 a6 0
20 Bb7 0