Life In 19x19

Hi everybody,

what do you think about the speed baduk serie and the Level up serie ?

What is the best ?

Thank you and happy new year.

Hi everybody,

if you have some advice to give for a go player about books, could you tell us 5 books to buy for :

- a newbie (30- 15 kyu).
- an amateur (14- 5 kyu).
- a good player ( 4 kyu and more) ?

Thank you and happy new year.