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

Book: 96 / 3017

# move proof disproof
1 b4 2424 96
2 c4 65 96
3 a3 54 96
4 Qh5 40 96
5 Qg4 38 96
6 Nc3 30 96
7 Qf3 24 97
8 f4 2 97
9 g4 2 105
10 Qe2 2 106
11 h3 25 108
12 c3 4 108
13 d3 29 109
14 Kf1 27 110
15 a4 27 110
16 Na3 23 111
17 h4 2 111
18 Nh3 2 111
19 Ne2 25 112
20 Ke2 25 112
21 b3 27 113
22 Nf3 2 113
23 d4 2 114
24 g3 2 115
25 f3 22 116
26 e4 92 117