31:30

stats 4-3

18:25

L'épreuve de mathématique la plus terrifiante (ENS 1966)

30:18

stats 5-1

13:30

stats 4-3 worked out (done for the semester)

31:29

stats chapter 4 all done

12:16

7 Outside The Box Puzzles

28:37

finale échecs 300

19:14

stats 4-1 worked out