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

Book: 57 / 129

# move proof disproof
1 Ng8 21 57
2 Nc6 1 57
3 Ng4 41 60
4 e5 1 60
5 e6 1 60
6 Ke6 1 60
7 a5 1 60
8 Nf5 1 60
9 Kc6 2 61
10 Ke8 2 61
11 Qe8 1 73
12 Rg8 1 73
13 g6 1 73
14 Kd6 1 73
15 g5 22 76
16 Bb7 1 76
17 f5 1 77
18 Ba6 1 77
19 Nf7 24 81
20 c5 1 84
21 c6 1 93
22 a6 1 93
23 Na6 1 141