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

Book: ∞ / 0

# move proof disproof
1 Bg7 0
2 Na6 0
3 a6 0
4 a5 0
5 Nc6 0
6 Kd6 0
7 Kc6 0
8 Nh6 0
9 Bh6 0
10 Bb7 0
11 e5 0
12 Ba6 0
13 Nf6 0
14 Kc7 0
15 Kd8 0
16 Ke8 0
17 e6 0
18 Ke6 0