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Decision question (Friedman, 2002): Does a given instance of Corral Puzzle have a solution? [1] This decision question is NP-complete. This is proven by reducing the decision problem of deciding the 3-colorability of a planar graph, which is known to be NP-complete, to a Corral Puzzle.
Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. Puzzle solutions for Friday, Nov. 15, 2024 Skip to main content
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Solution to the previous puzzle. The binary determination puzzles LITS and Mochikoro, also published by Nikoli, are similar to Nurikabe and employ similar solution methods. The binary determination puzzle Atsumari is similar to Nurikabe but based upon a hexagonal tiling rather than a square tiling. Mochikoro is a variant of the Nurikabe puzzle:
Unlike other puzzle books, each page is involved in solving the book's riddle. Specifically, each page represents a room or space in a hypothetical house, and each room leads to other "rooms" in this "house". Part of the puzzle involves reaching the center of the house, Room #45 (page 45 in the book), and back to Room #1 in only sixteen steps.
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The MIT Mystery Hunt is an annual puzzle hunt competition at the Massachusetts Institute of Technology in Cambridge, Massachusetts.It is one of the oldest and most complex puzzle hunts in the world and attracts roughly 120 teams and 3,000 contestants (with about 2,000 on campus) annually in teams of 5 to 150 people.
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