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

Book: 25 / 138

# move proof disproof
1 Na6 1 25
2 Nc6 1 25
3 Ng8 1 25
4 Ng4 69 53
5 Nf5 2 53
6 Ke8 2 53
7 e6 1 53
8 f5 1 53
9 Kc6 2 54
10 Ke6 1 54
11 e5 1 54
12 Qe8 1 67
13 Rg8 1 67
14 g6 1 67
15 c5 1 69
16 Bb7 1 69
17 Kd6 1 69
18 g5 22 70
19 Nf7 24 72
20 a5 1 73
21 Ba6 1 75
22 c6 1 87
23 a6 1 87