Defence Theory

1. Defence theory(1): Why do you want to defend?
2. Defence theory(2): Overview on defending in Japanese mahjong
3. Defence theory(3): Genbutsu
4. Defence theory(4): Suji-pai
5. Defence theory(5): Kabe
6. Defence theory(6): Tile risk table
7. Defence theory(7): Requirement for betaori
8. Defence theory(8): Important points of betaori(Part 1)
9. Defence theory(9): Important points of betaori(Part 2)
10. Defence theory(10): What do you do when there's no safe tiles? 
11. Defence theory(11): Defence against melded sets(1)
12. Defence theory(12): Detailed explanation of each type of melded sets(Part 1)
13. Defence theory(13): Detailed explanation of each type of melded sets(Part 2)
14. Defence theory(14): Defence theory against two or more players
15. Defence theory(15): Defence theory against two or more players(Continued)
16. Defence theory(16): Tricks to defending