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

Book: 24 / 188

# move proof disproof
1 Qd1 1 24
2 Nf3 25 25
3 e4 1 27
4 g4 21 44
5 Qd3 7 44
6 Qf3 2 44
7 Qg4 62 45
8 c5 1 45
9 a3 1 45
10 b3 1 45
11 d3 1 45
12 g3 1 45
13 a4 1 45
14 f4 1 45
15 h4 1 45
16 Na3 1 45
17 Nc3 1 45
18 Nh3 1 45
19 Kd1 1 45
20 Kf1 1 45
21 Qf1 23 47
22 b4 1 48
23 d4 1 48
24 h3 8 57
25 Qh5 22 61
26 f3 1 103