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

Book: ∞ / 0

# move proof disproof
1 Ra8 0
2 Kb6 0
3 Ka6 0
4 Bh6 0
5 Bg7 0
6 a6 0
7 Kc8 0
8 Kb8 0
9 Ka8 0
10 Kc7 0
11 Rb8 0
12 Rc8 0
13 Rd8 0
14 Nh6 0
15 g5 0
16 c5 0
17 a5 0
18 e6 0
19 Nf6 0