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

Book: ∞ / 0

# move proof disproof
1 d2 0
2 Nc6 0
3 Na6 0
4 Bb7 0
5 f5 0
6 Nf6 0
7 e6 0
8 e5 0
9 d6 0
10 d5 0
11 Bg7 0
12 a5 0
13 Qc7 0
14 Bh6 0
15 Ba6 0
16 a6 0
17 b5 0
18 f6 0
19 Nh6 0