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

Book: 24 / 186

# move proof disproof
1 Nf3 1 24
2 Qg4 62 45
3 g4 21 45
4 Qa4 6 45
5 c5 2 45
6 Qf3 2 45
7 a3 1 45
8 b3 1 45
9 d3 1 45
10 e4 1 45
11 a4 1 45
12 f4 1 45
13 h4 1 45
14 Na3 1 45
15 Nc3 1 45
16 Nh3 1 45
17 Qe2 1 45
18 Kf1 1 45
19 Ke2 26 48
20 Ne2 25 48
21 b4 1 48
22 d4 1 48
23 Qc2 1 49
24 Qb3 1 54
25 h3 3 56
26 Qh5 21 62
27 f3 1 103