500 Go Problems

The game of Go is, occasionally, referred to as a sitting martial art. This series of books is dedicated to kyu ranked players and uses the following colors to represent belt colors often used in martial arts rating systems: white (beginner), yellow, orange, green, blue and then brown.
Green is the color of spring and of growth. The student has now become more versatile, he is learning and experimenting with new techniques. Above all, he is also becoming more adventurous in the execution and application of technique training. He strives for a better techniques and tries to involve the whole board.
This books can be used as a classroom tutorial, as an after-school exercise, or as a test for self-learners who would like to improve their skills.