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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 Kd8 0
3 Kd7 0
4 c6 0
5 c5 0
6 f6 0
7 Rb8 0
8 Bg7 0
9 Nf6 0
10 f5 0
11 Ra8 0
12 b4 0
13 e6 0
14 Bh6 0
15 Nh6 0