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

Book: 24 / 203

# move proof disproof
1 Nf3 1 24
2 Qg4 65 44
3 g4 11 44
4 Qa4 5 44
5 Qf3 2 44
6 c5 1 44
7 Qd2 1 44
8 a3 1 45
9 b3 1 45
10 g3 1 45
11 e4 1 45
12 a4 1 45
13 f4 1 45
14 h4 1 45
15 Nd2 1 45
16 Na3 1 45
17 Nc3 1 45
18 Nh3 1 45
19 Qe2 1 45
20 Kf1 1 45
21 Kd2 1 45
22 Ke2 29 46
23 Bd2 1 46
24 Qc2 30 47
25 Qh5 4 47
26 Ne2 30 48
27 d4 1 48
28 b4 1 48
29 Qb3 1 53
30 h3 5 56
31 f3 1 104