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

Book: 53 / 209

# move proof disproof
1 Qe8 1 53
2 Ng4 176 54
3 a6 7 54
4 f5 2 54
5 Nf7 2 54
6 Ng8 2 54
7 Nf5 1 55
8 Kd6 2 56
9 Kc6 1 56
10 Ke6 1 56
11 Ke8 1 56
12 Bb7 1 57
13 a5 1 60
14 c5 1 60
15 Nc6 1 60
16 e5 1 62
17 e6 1 62
18 Ba6 1 64
19 Na6 1 65
20 Rg8 2 76
21 g5 2 76
22 g6 1 76
23 c6 0 ∞