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

Book: 28 / 199

# move proof disproof
1 Nf5 127 28
2 Ng4 31 28
3 e5 1 28
4 e6 1 29
5 Ba6 1 29
6 Kd6 1 29
7 Kc6 1 30
8 Ke6 1 30
9 Ke8 1 30
10 f5 20 47
11 Bb7 1 50
12 Nf7 2 52
13 a6 1 52
14 c6 1 52
15 g6 1 52
16 a5 1 52
17 c5 1 52
18 g5 1 52
19 Ng8 1 52
20 Na6 1 52
21 Nc6 1 52
22 Rg8 1 52
23 Qe8 1 52