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Arithmetical, Geometrical and Combinatorial Puzzles from Japan

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The vibrant recreational mathematics culture of Japan presents puzzles that are often quite different from the classics of western literature. This book is the first collection of original puzzles by Tadao Kitazawa, a prominent Japanese puzzle-maker. These puzzles, which feature arithmetic, geometry, and combinatorics, are novel, creative, and require almost no formal mathematical knowledge. Kitazawa is particularly skillful in subtly modifying existing ideas to explore their potential to the full. For one example, a Tower Square is a Sudoku-like grid, but each row and column contains one 1, two 2s, three 3s, etc. The resulting transformation of the familiar problem is magical, and it is one of a variety of gems in this book. The common denominator is fun!

184 pages, Paperback

Published October 21, 2021

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Profile Image for Maurizio Codogno.
Author 66 books143 followers
November 1, 2023
a volte difficile da comprendere

Una cosa bisogna dirla subito: Kitazawa è un creatore di giochi sopraffino. Tipicamente questi libri riciclano materiale composto da altri, al più riproponendolo in una forma un po' diversa: i giochi di questo libro sono invece tutti creati da lui. Anzi, le tipologie stesse di giochi, qui raccolte per capitoli, sono spesso sue ideazioni!
Purtroppo però la traduzione inglese non è esattamente il massimo: spesso ho perso molto tempo a capire non solo quale fosse la soluzione, ma proprio qual era il testo del problema... È vero che la matematica è sempre la stessa, ma le diverse culture la declinano in modo molto diverso!
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