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Assisted living exercise and mindfulness activities. Today’s senior communities strive to make fitness fun and easily accessible through on-site, ability- and skill-relevant gyms, plus a variety ...
Another form of logic puzzle, popular among puzzle enthusiasts and available in magazines dedicated to the subject, is a format in which the set-up to a scenario is given, as well as the object (for example, determine who brought what dog to a dog show, and what breed each dog was), certain clues are given ("neither Misty nor Rex is the German Shepherd"), and then the reader fills out a matrix ...
Squaring the circle, the impossible problem of constructing a square with the same area as a given circle, using only a compass and straightedge. [7] Three cups problem – Turn three cups right-side up after starting with one wrong and turning two at a time. [8]
Logic puzzles are a common type of mathematical puzzle. Conway's Game of Life and fractals, as two examples, may also be considered mathematical puzzles even though the solver interacts with them only at the beginning by providing a set of initial conditions. After these conditions are set, the rules of the puzzle determine all subsequent ...
The mortal matrix problem. Determining whether a finite set of upper triangular 3 × 3 matrices with nonnegative integer entries generates a free semigroup. [citation needed] Determining whether two finitely generated subsemigroups of integer matrices have a common element. [3]
A permutation matrix is a (0, 1)-matrix, all of whose columns and rows each have exactly one nonzero element.. A Costas array is a special case of a permutation matrix.; An incidence matrix in combinatorics and finite geometry has ones to indicate incidence between points (or vertices) and lines of a geometry, blocks of a block design, or edges of a graph.
Pentominoes and polyominoes: five games and a sampling of problems 1965 Nov: A selection of elementary word and number problems 1965 Dec: Magic stars, graphs and polyhedrons 1966 Jan: Dr. Matrix returns, now in the guise of a neo-Freudian psychonumeranalyst 1966 Feb: Recreational numismatics, or a purse of coin puzzles 1966 Mar
Example grid for a cross-figure puzzle with some answers filled in A cross-figure (also variously called cross number puzzle or figure logic ) is a puzzle similar to a crossword in structure, but with entries that consist of numbers rather than words, where individual digits are entered in the blank cells.