by E. I. Ignátiev · Rubiños 1860, S.A. · tapa dura · ISBN 9788480410656
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«En el reino del ingenio» is a classic of mathematical popularisation by E. I. Ignátiev, published by Rubiños 1860 in hardcover (247 pages, in Spanish).
A pioneering work of Russian mathematical popularisation: it brings together a wide selection of problems, puzzles and riddles of varying difficulty, designed to exercise logic, observation and ingenuity. Elementary notions of arithmetic and geometry suffice to solve them.
Spanish edition published in 1995 in the Ciencia Popular collection, under the imprint of Editorial Mir and Rubiños 1860.
It will appeal to students and fans of classic mathematical puzzles and challenges.
