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

Book: 53 / 100

# move proof disproof
1 d3 39 53
2 c4 23 53
3 g4 4 53
4 h4 1 53
5 Nf3 1 53
6 Bb2 1 53
7 Qg4 1 53
8 b4 1 55
9 d4 1 55
10 Ke2 3 62
11 Ne2 3 62
12 Qe2 2 62
13 Ba3 1 62
14 Kf1 1 63
15 e4 1 69
16 Qh5 2 70
17 Rh2 1 71
18 Nc3 1 71
19 Na3 1 71
20 f4 1 71
21 a4 1 71
22 g3 1 71
23 f3 1 71
24 c3 1 71
25 a3 1 71
26 Qf3 6 73