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

Book: 61 / 105

# move proof disproof
1 Qh5 6 61
2 f4 4 61
3 Qb3 4 61
4 Kf1 3 61
5 Qe2 3 61
6 Rh2 3 61
7 Nc3 3 61
8 a4 3 61
9 g3 3 61
10 d3 3 61
11 b3 3 61
12 a3 3 61
13 Na3 3 61
14 c5 3 61
15 f3 2 61
16 h4 2 61
17 Ne2 1 61
18 Ke2 1 61
19 Nf3 1 61
20 d4 1 61
21 Qg4 1 61
22 g4 21 62
23 Qf3 16 62
24 Qa4 8 62
25 Qc2 1 63
26 b4 2 69
27 e4 1 76