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

Book: 49 / 247

# move proof disproof
1 c5 25 49
2 Nc6 22 49
3 a6 20 49
4 g5 4 49
5 Ba6 1 49
6 Ke8 1 49
7 Kc6 1 49
8 Bb7 1 49
9 Ng4 70 50
10 Nf5 1 50
11 Ng8 21 51
12 Ke6 1 51
13 Nf7 25 52
14 f5 1 52
15 Na6 1 52
16 a5 1 53
17 Kd6 1 54
18 e6 1 64
19 e5 1 64
20 Qe8 1 66
21 g6 1 66
22 Rg8 22 72
23 c6 24 182