Good Old-Fashioned Challenging Puzzles: And Perplexing Mathematical Problems (Puzzle Books) by Henry Ernest Dudeney
Requirements: .PDF reader, 3.9 MB
Overview: Contains mathematical brain teasers, first published in 1917, as the puzzles regularly appeared in newspapers and magazines. This book includes new twists on old puzzles, as well as other puzzles – some reasonably easy and others very hard.
Genre: Non-Fiction > Educational
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