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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 Bb7 0
3 c5 0
4 Nf6 0
5 Ng5 0
6 Na6 0
7 Kd6 0
8 Rg8 0
9 Qg8 0
10 e6 0
11 f6 0
12 Nc6 0
13 e5 0
14 Qf8 0
15 Qe8 0
16 Rf8 0
17 Re8 0
18 c6 0
19 a6 0
20 a5 0
21 Ba6 0
22 Ke6 0
23 Ke8 0
24 Kc6 0
25 Nf8 0