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

Book: 29 / 171

# move proof disproof
1 f5 1 29
2 Ba6 1 60
3 Nc6 1 64
4 c6 20 70
5 Ng4 24 72
6 Qe8 3 72
7 Nf5 3 72
8 Bb7 3 73
9 g6 1 74
10 a5 1 75
11 Nf7 23 76
12 Kc6 3 78
13 Kd6 1 82
14 Ke8 3 84
15 e6 1 85
16 Na6 1 85
17 Rg8 1 85
18 e5 1 86
19 g5 1 90
20 Ke6 21 92
21 a6 17 92
22 c5 21 97
23 Ng8 19 98