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

Book: ∞ / 0

# move proof disproof
1 Rg8 0
2 Ke7 0
3 Ke8 0
4 Ke6 0
5 Kc7 0
6 Rf8 0
7 Re8 0
8 Kd6 0
9 Ra6 0
10 Ra7 0
11 Rc8 0
12 Kc8 0
13 Nf8 0
14 Nf6 0
15 Na6 0
16 Kc6 0
17 Rh8 0
18 Nc6 0