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

Book: 24 / 190

# move proof disproof
1 Nb1 1 24
2 Nf3 1 24
3 Qg4 62 45
4 g4 21 45
5 Qa4 5 45
6 c5 2 45
7 Qf3 2 45
8 h3 2 45
9 b3 1 45
10 d3 1 45
11 f3 1 45
12 g3 1 45
13 e4 1 45
14 h4 1 45
15 Nh3 1 45
16 Nc2 1 45
17 Rb1 1 45
18 Qe2 1 45
19 Kf1 1 45
20 f4 1 46
21 Qh5 23 47
22 Ne2 27 48
23 Ke2 27 48
24 b4 1 48
25 d4 1 48
26 Qc2 1 51
27 Nb5 1 51
28 Qb3 1 55