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 Rc8 0
4 a5 0
5 d5 0
6 d6 0
7 f6 0
8 b6 0
9 h5 0
10 g5 0
11 Ra8 0
12 e5 0
13 f5 0
14 Bg7 0
15 e6 0
16 Nf6 0
17 Rh7 0
18 a6 0