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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 Rg8 0
3 Rf8 0
4 Re8 0
5 Rd8 0
6 Rc8 0
7 Bg7 0
8 a6 0
9 f6 0
10 Ke6 0
11 Kd6 0
12 Nf8 0
13 Bf8 0
14 Kc7 0
15 Kc8 0
16 Kd8 0
17 Ke8 0
18 a5 0
19 Kc6 0
20 e6 0
21 e5 0
22 Nf6 0
23 g4 0
24 Na6 0
25 Nc6 0
26 c4 0