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

Book: 76 / 1236

# move proof disproof
1 Qg4 115 76
2 Nf3 70 104
3 Nh3 58 147
4 g4 66 165
5 Qh5 29 171
6 c4 51 180
7 Bb2 45 187
8 h4 29 187
9 e4 28 199
10 b4 27 200
11 Qe2 53 209
12 Qf3 51 216
13 Na3 51 217
14 Ne2 50 220
15 f4 28 238
16 Ke2 50 239
17 d3 55 240
18 Nc3 58 253
19 g3 50 289
20 a4 54 291
21 Kf1 51 293
22 a3 25 297
23 d4 29 336
24 c3 28 352
25 Ba3 26 369
26 f3 23 505
27 h3 36 507