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

Book: ∞ / 0

# move proof disproof
1 b3 0
2 f5 0
3 Na6 0
4 b5 0
5 c5 0
6 f6 0
7 Ba6 0
8 c6 0
9 g5 0
10 Nh6 0
11 g6 0
12 Nc6 0
13 e5 0
14 Bb7 0
15 d5 0
16 e6 0
17 Nf6 0
18 d6 0