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

Book: 107 / 2538

# move proof disproof
1 g3 1 107
2 b4 1981 108
3 a3 68 108
4 Na3 55 108
5 Qf3 48 108
6 Qh5 46 108
7 Qg4 42 108
8 Ke2 32 108
9 Kf1 31 108
10 f3 27 108
11 b3 10 108
12 Nh3 3 108
13 d3 32 109
14 h4 4 109
15 d4 1 109
16 a4 44 110
17 Ne2 32 110
18 c3 2 110
19 Nc3 3 111
20 h3 32 120
21 c4 4 122
22 e4 33 123
23 Qe2 2 125
24 g4 2 126
25 f4 2 128
26 Nf3 1 134