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

Book: 148 / 1239

# move proof disproof
1 g6 48 148
2 a5 26 148
3 c6 3 148
4 Kc6 2 148
5 c5 446 149
6 Ng4 302 149
7 g5 76 149
8 Kd6 73 149
9 Qe8 59 149
10 Rg8 52 149
11 Nf5 9 149
12 Na6 1 149
13 Nc6 1 149
14 f5 4 150
15 Ke6 8 151
16 Ke8 6 151
17 Bb7 1 156
18 Ba6 1 158
19 e5 1 160
20 e6 1 161
21 a6 2 164
22 Ng8 48 168
23 f6 69 478