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

Book: 127 / 2251

# move proof disproof
1 Ba6 1015 127
2 b4 843 127
3 Ke2 52 127
4 Qh5 36 127
5 Qf3 36 127
6 Bb5 36 127
7 d4 14 127
8 Qg4 8 127
9 Na3 5 127
10 h3 2 127
11 c4 1 127
12 Nc3 4 128
13 f3 3 128
14 b3 3 128
15 a3 2 128
16 g3 2 128
17 c3 2 129
18 Ne2 57 131
19 Bd3 55 133
20 d3 2 140
21 h4 1 140
22 Qe2 5 141
23 a4 3 141
24 Be2 1 141
25 f4 1 141
26 Nf3 1 142
27 Nh3 1 143
28 g4 1 144
29 e4 1 144
30 Bc4 58 145