16th problem in exercise 62 progressions

1:44:32

3:03

17:08

13:10

27:23

21:33

00:14

4:24

25:19

17:27

1:34:44

21:22

20:00

4:07

11:27

1:13:13

11:52

6:39

4:56

1:07:54

17:42

00:35

16:44

1:09:45

7:48

6:24

00:15

2:16

13:43

10:21

15:24

16:19

33:59

12:38

00:45

1:00

1:12:41

15:19

2:00

1:45:14

25:48

54:24

1:18:21

1:27

9:39

33:00

00:25

9:37

4:00

52:24

00:45

1:49

2:23

20:44

22:50

00:44

7:00

5:22