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

Book: ∞ / 0

# move proof disproof
1 Rf8 0
2 Re8 0
3 Nf8 0
4 f5 0
5 Bb7 0
6 Rb8 0
7 c6 0
8 Ke6 0
9 c5 0
10 Rg8 0
11 Ke8 0
12 e6 0
13 e5 0
14 Kc6 0
15 Qg8 0
16 f6 0
17 Qf8 0
18 Qe8 0
19 Kd6 0
20 g4 0
21 Ba6 0
22 a6 0
23 Nf6 0