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

Book: 22 / 149

# move proof disproof
1 Ng8 1 22
2 f5 1 22
3 Nc6 1 31
4 c6 1 43
5 Ng4 55 47
6 Bb7 54 47
7 Ba6 8 48
8 c5 2 49
9 Nf5 3 54
10 Ke6 3 54
11 Kc6 3 54
12 Ke8 3 54
13 e6 2 62
14 e5 2 64
15 Na6 1 65
16 a5 2 69
17 Kd6 1 69
18 Qe8 1 69
19 Rg8 1 69
20 Nf7 1 69
21 g5 1 69
22 g6 1 69
23 a6 1 69