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

Book: ∞ / 0

# move proof disproof
1 b3 0
2 f6 0
3 f5 0
4 c5 0
5 a5 0
6 c6 0
7 g5 0
8 Nh6 0
9 d5 0
10 Bb7 0
11 g6 0
12 Nf6 0
13 e5 0
14 e6 0
15 d6 0