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

Book: 27 / 232

# move proof disproof
1 a6 1 27
2 c5 136 32
3 Ng4 73 32
4 a5 2 32
5 Nf5 1 32
6 Ke8 1 33
7 Ke6 1 33
8 Kc6 1 33
9 g5 1 47
10 Bb7 1 49
11 Kd6 1 49
12 Nf7 2 52
13 f5 1 52
14 c6 1 52
15 g6 1 52
16 Ng8 1 52
17 Rg8 1 52
18 Qe8 1 52
19 Ba6 1 53
20 e6 1 55
21 e5 1 55
22 Na6 1 55
23 Nc6 1 55