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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 Na6 0
3 e5 0
4 Nh6 0
5 e6 0
6 a5 0
7 Ke8 0
8 Kd6 0
9 Bh6 0
10 Kc6 0
11 Kd8 0
12 Bb7 0
13 a6 0
14 c5 0
15 Ke6 0
16 Ba6 0
17 c6 0
18 Bg7 0
19 Nc6 0