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

Book: 56 / 173

# move proof disproof
1 Nf5 15 56
2 e6 6 56
3 Kc6 6 56
4 Qe8 2 56
5 Nf7 25 57
6 Ke6 7 57
7 Kd6 4 57
8 e5 3 57
9 Rg8 2 57
10 a6 2 57
11 Ba6 2 57
12 c5 2 57
13 g6 1 57
14 g5 1 57
15 Ng4 31 58
16 Ng8 23 58
17 Bb7 5 58
18 Nc6 2 58
19 Ke8 8 60
20 Na6 2 64
21 a5 2 67
22 f5 20 68
23 c6 2 70