Aha! Aha! InsightContains puzzles that first baffle and then delight problem solving addicts. Each puzzle is introduced with a sequence of drawings. Grew out of a collaboration between Bob Tappay and Martin Gardner to enliven the learning of mathematics. |
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algorithm answer arithmetic balls binary binary notation blue bottle cake calculator cards cells centimeters circle clock coins color combinatorial count cube diagonal divided Dmitri Borgmann dollar easy equation exactly example famous four geometry girl graph theory Helen helix Henry E hole infinite number insight isomorphic Jones Josephus problem kilometers knights lady length letters logic magic square Martin Gardner matches mathematical induction mathematicians mathematics meters minutes Miss Euclid move Nosmo King number theory pair palindrome palindromic prime parity Pascal's triangle phone number pieces pills plane play pocket polyomino procedure puzzle Pythagorean theorem question Quibble Quibble's quickie remains rope sequence shown in Figure side simple solution spot steaks Steiner tree Steiner's problem straight lines string Susan symmetry theorem tick-tack-toe tile tion triangle Uncle Henry word Wordle