# Cho U no Tokusen Tsumego

__Keywords__: Books & Publications

張栩の特選詰碁 (*Chou U no Tokusen Tsumego*, Specially Selected Tsumego by Cho U) is a collection of tsumego problems composed by Cho U, published in 2008 by the Nihon Kiin. The amazon.co.jp page for it is here

### Reviews

Bob McGuigan: Unlike Cho U's Tsumego this book includes less difficult problems. There are 55 problems ranging in difficulty from 1.5 stars to 5 stars. Cho says the problems are basically for players shodan or stronger; problems rated three or more stars are suitable for high dan level players. For some of the more difficult problems Cho gives some of the variations as easier problems. About a third of the problems result in ko, including approach move kos. These problems are probably too difficult for most kyu level players but Cho writes of *enjoying* tsumego problems, meaning puzzling over them for a reasonable amount of time then marveling over the solutions and variations.

### Table of Contents

The book begins with simple small diagrams for all 55 problems. There follow three sections in which each problem is stated with a large diagram and solutions with analysis of variations are given on the following pages:

Part 1, Simple Problems (Problem 1 through Problem 20; one-and-a-half star and two star problems)

Part 2, Specially Selected Problems (Problem 21 through Problem 48; two-and-a-half, three, and three-and-a-half star problems)

Part 3, Challenging Problems (Problems 49 through 55; four, four-and-a half, and five star problems)

### Sample Material

Here is problem 29, a three star problem: