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

Book: 64 / 133

# move proof disproof
1 Ke6 1 64
2 Kc6 2 65
3 e5 1 65
4 e6 1 65
5 Ke8 2 67
6 Nf7 2 70
7 g6 1 70
8 Ng8 1 70
9 Rg8 1 70
10 Qe8 1 70
11 Ba6 1 71
12 Na6 1 72
13 Kd6 1 73
14 Nc6 1 73
15 a5 1 75
16 Nf5 3 78
17 c5 1 78
18 Ng4 69 87
19 c6 1 87
20 a6 1 107
21 g5 37 209
22 f5 3 996
23 Bb7 0 ∞