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

Book: 37 / 275

# move proof disproof
1 Ng4 169 37
2 Kc6 1 37
3 Ke6 1 37
4 Ke8 1 37
5 Nf5 2 40
6 g4 40 42
7 Bb7 1 44
8 Kd6 2 45
9 a6 1 45
10 g6 1 45
11 Rg8 1 45
12 Qe8 1 45
13 c6 3 46
14 a5 1 47
15 c5 1 47
16 Na6 1 47
17 Nc6 1 47
18 e5 1 49
19 e6 1 49
20 Ba6 1 49
21 Nf7 23 53
22 Ng8 21 56