About chess lessons for intermediate results of 10,000
29:01
18:47
08:01
16:16
15:10
15:18
06:48
02:58
16:29
10:30
28:17
34:27
07:27
10:54
01:07
08:23
11:05
23:00
05:29
08:05
16:05
02:16
03:46
19:19
06:43
15:20
08:34
03:33
14:33
12:40
21:30
08:45
07:01
08:25
04:06
05:01
15:58
08:23
01:44
21:37
27:01
26:45
18:39
19:37
11:26
09:27