By Nakayama Noriyuki, engl., 119 pages.
This book contains 90 problems who can - often surprisingly - be solved by moves on the first line. Graded in difficulty from 15 kyu op to Dan level, these problems should communicate understanding in the tactical finesse of the Go game. He who can solve all problems, according to Nakayama Noriyuki in his opening chapter, will in doing so level up from 15 Kyu to 1 Dan.
