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

Book: 80 / 253

# move proof disproof
1 Nf7 24 80
2 a5 1 80
3 Qe8 1 80
4 Rg8 1 80
5 g6 1 80
6 c5 1 81
7 Ba6 1 81
8 e6 1 82
9 e5 1 82
10 Bb7 1 83
11 Nc6 1 85
12 Ng4 72 103
13 Ng8 21 113
14 Na6 1 135
15 g5 43 203
16 f5 22 259
17 Ke6 14 499
18 Nf5 21 513
19 Ke8 16 837
20 Kc6 4 1034
21 a6 2 1399
22 Kd6 3 1579
23 c6 0 ∞