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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 Bg7 0
3 Nf8 0
4 Nf6 0
5 e6 0
6 Na6 0
7 Ba6 0
8 Rd8 0
9 Re8 0
10 Rf8 0
11 Bb7 0
12 a6 0
13 g4 0
14 Rg8 0
15 Ke8 0
16 Kd8 0
17 Kc7 0
18 Kc6 0
19 Nc6 0
20 a5 0
21 Bf8 0
22 e5 0
23 f6 0
24 Ke6 0
25 Kd6 0