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

Book: 27 / 559

# move proof disproof
1 Qg4 39 27
2 Qf3 21 27
3 Qa4 16 27
4 Qh5 13 27
5 Qc2 13 27
6 Qb3 6 27
7 b4 2 27
8 g4 2 27
9 f3 1 27
10 f4 1 27
11 Qe2 55 28
12 Ke2 58 29
13 Nc3 32 29
14 Kf1 28 29
15 Rh2 27 29
16 Nf3 27 29
17 Ne2 27 29
18 a4 27 29
19 b3 26 29
20 c5 26 29
21 Na3 27 30
22 a3 26 30
23 g3 25 41
24 d3 30 42
25 d4 2 42
26 e4 1 43
27 h4 1 43