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

Book: 28 / 402

# move proof disproof
1 Nf7 23 28
2 Rg8 21 28
3 Ng8 21 28
4 a6 20 28
5 Ke8 2 28
6 Kc6 2 28
7 Nf5 1 28
8 Kd6 1 28
9 Ke6 1 28
10 Ng4 161 29
11 g4 116 29
12 c6 23 29
13 Bb7 1 46
14 e5 1 47
15 e6 1 47
16 Qe8 1 47
17 g6 1 47
18 a5 1 49
19 c5 1 49
20 Na6 1 49
21 Nc6 1 49
22 Ba6 1 51