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

Book: 21 / 203

# move proof disproof
1 Nc3 1 21
2 Qf3 6 46
3 f4 5 46
4 Na3 3 46
5 a3 3 46
6 Qg4 1 46
7 Qe2 1 46
8 g4 43 47
9 h4 26 47
10 Rh2 15 47
11 c3 9 47
12 a4 9 47
13 c4 9 47
14 d3 8 47
15 d4 1 47
16 Bb2 1 47
17 g3 16 48
18 Kf1 14 48
19 Qh5 23 52
20 Ba3 1 52
21 f3 2 56
22 e4 2 57
23 Ke2 1 57
24 Nf3 1 57
25 Ne2 1 57
26 b4 1 62