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

Book: 23 / 505

# move proof disproof
1 f5 1 23
2 Ng4 274 24
3 Qe8 26 24
4 g5 23 24
5 Rg8 22 24
6 a6 21 24
7 Nf5 1 24
8 Ba6 1 24
9 e6 1 25
10 e5 1 25
11 Bb7 1 25
12 Kd6 1 25
13 Kc6 1 26
14 Ke6 1 26
15 Ke8 1 26
16 c6 56 38
17 g6 23 43
18 a5 1 44
19 c5 1 44
20 Na6 1 44
21 Nc6 1 44
22 Nf7 25 48
23 Ng8 21 48