The series "You won't get dumber while thinking" will help you develop your logical thinking skills as you improve at the ancient board game Go (baduk, weiqi).
Each book is graded by level, and these kyu levels are written in the title. However, please, check the sample problems before buying a book to make sure the problems fit your level as ratings can vary between different countries and Go servers.
The series “You won’t get dumber while thinking” consists of 8 books with Life & Death Go Problems (tsumego):
Life & Death Go Problems for 18-20 kyu (180 problems)
Life & Death Go Problems for 15-17 kyu (220 problems)
Life & Death Go Problems for 12-14 kyu (260 problems)
Life & Death Go Problems for 10-11 kyu (200 problems)
Life & Death Go Problems for 8-9 kyu (240 problems)
Life & Death Go Problems for 6-7 kyu (280 problems)
Life & Death Go Problems for 4-5 kyu (320 problems)
Life & Death Go Problems for 3 kyu (200 problems)
There are a total of 1900 Go problems with instructions and answers.
Author: Mateusz Surma (a professional Go player from Poland)
Did you know?
In 2018 at the European Go Congress in Pisa, Italy, the author of the series "You won’t get dumber while thinking" offered 100 euros for any person who would find any mistake in any answer from the 1900 Go problems, which are in the series.
Many strong Go players were looking for mistakes in these Go problems.
Altogether, only 7 mistakes have been found.
Btw. If you don't know what Go is or if you have just learned the rules, Mateusz recommends that you first read his book "Shapes of mind. Go course for beginners."
Samples
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_3_kyu_en_pl_ru_ua_es.pdf
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_4_5_kyu_en_pl_ru_ua_es.pdf
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_6_7_kyu_en_pl_ru_ua_es.pdf
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_8_9_kyu_en_pl_ru_ua_es.pdf
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_10_11_kyu_en_pl_ru_ua_es.pdf
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_12_14_kyu_en_pl_ru_ua_es.pdf
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_15_17_kyu_en_pl_ru_ua_es.pdf
sample_you_wont_get_dumber_while_thinking_life_death_go_problems_for_18_20_kyu_en_pl_ru_ua_es.pdf
