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

Book: 172 / 1928

# move proof disproof
1 h4 8 172
2 Ba6 1494 173
3 Nf3 1 174
4 Qh5 61 175
5 Ne2 51 175
6 Nh3 1 181
7 c4 1 181
8 d3 29 182
9 Ke2 52 186
10 Bd3 55 193
11 Qf3 46 242
12 Qg4 24 420
13 a4 31 466
14 Qe2 29 516
15 h3 9 597
16 c3 28 726
17 b4 4 964
18 Be2 1 1739
19 e4 3 1846
20 d4 0
21 f3 0
22 f4 0
23 Nc3 0
24 Na3 0
25 g4 0
26 Bb5 0
27 g3 0
28 Bc4 0
29 b3 0
30 a3 0