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

Book: ∞ / 0

# move proof disproof
1 Kd8 0
2 Kd7 0
3 Ra8 0
4 e5 0
5 a5 0
6 f5 0
7 h5 0
8 e6 0
9 Nf6 0
10 a6 0
11 Rh7 0
12 Bg7 0
13 Rd8 0
14 g5 0
15 Rc8 0
16 b6 0
17 f6 0