Perfect shuffles of a 52-card deck

This is an animation of perfect shuffles being performed on a 52-card deck. Click on the buttons below to track the movement of different cards in the deck. (You can interrupt the shuffles at any time by clicking on another number.)

Track card # 1
2♠
2
3♠
3
4♠
4
5♠
5
6♠
6
7♠
7
8♠
8
9♠
9
10♠
10
J♠
11
Q♠
12
K♠
13
A♥
14
2♥
15
3♥
16
4♥
17
5♥
18
6♥
19
7♥
20
8♥
21
9♥
22
10♥
23
J♥
24
Q♥
25
K♥
26
A♣
27
2♣
28
3♣
29
4♣
30
5♣
31
6♣
32
7♣
33
8♣
34
9♣
35
10♣
36
J♣
37
Q♣
38
K♣
39
A♦
40
2♦
41
3♦
42
4♦
43
5♦
44
6♦
45
7♦
46
8♦
47
9♦
48
10♦
49
J♦
50
Q♦