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

Book: 111 / 2280

# move proof disproof
1 Qh5 60 111
2 Na3 51 111
3 Nc3 49 111
4 Qf3 9 111
5 Qg4 8 111
6 h3 6 111
7 d4 1 111
8 Ba6 1855 112
9 Bb5 12 112
10 a3 6 112
11 g3 6 112
12 b4 2 112
13 Nf3 1 112
14 d3 29 113
15 f3 22 113
16 Be2 5 113
17 h4 2 113
18 Bd3 2 113
19 a4 34 114
20 Ne2 23 117
21 g4 1 119
22 Ke2 23 120
23 b3 7 120
24 e4 1 120
25 Qe2 1 121
26 Nh3 2 125
27 c4 27 126
28 c3 8 128
29 Bc4 26 131
30 f4 1 133