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

Book: 219 / 2379

# move proof disproof
1 Qe2 196 219
2 g4 119 219
3 Qh5 112 219
4 h4 2 219
5 Na3 49 221
6 Nc3 60 222
7 Qf3 43 223
8 Ne2 50 224
9 Ke2 50 224
10 a4 49 224
11 g3 45 226
12 e4 47 227
13 c3 46 228
14 d3 52 230
15 f3 1 230
16 a3 45 232
17 h3 26 233
18 Kf1 47 234
19 d4 1 236
20 Nf3 6 239
21 Qg4 493 562
22 c4 260 765
23 b3 262 822
24 b4 148 1239
25 Nh3 170 1375
26 f4 0