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

Book: 53 / 223

# move proof disproof
1 Nc6 1 53
2 e6 1 57
3 e5 1 57
4 Ba6 1 57
5 Rg8 22 58
6 Nf5 3 58
7 g6 3 58
8 g5 3 58
9 Kc6 1 58
10 a5 1 58
11 Ng4 42 59
12 Ke8 1 59
13 Kd6 1 59
14 Ke6 1 59
15 Qe8 26 60
16 Bb7 1 69
17 f5 1 77
18 Na6 1 77
19 Nf7 25 78
20 c5 1 80
21 a6 21 87
22 c6 24 427
23 Ng8 41 501