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

Book: 46 / 154

# move proof disproof
1 e5 4 46
2 Na6 4 46
3 Rg8 4 46
4 Qe8 4 46
5 Kd6 4 46
6 Ba6 4 46
7 Ng8 2 46
8 Nf7 28 47
9 Ke8 5 47
10 Ke6 4 47
11 Kc6 2 47
12 Nc6 1 47
13 Ng4 47 48
14 Nf5 12 50
15 Bb7 5 57
16 c5 4 61
17 a5 4 61
18 g6 4 61
19 e6 4 61
20 g4 2 62
21 c6 2 73
22 a6 4 79