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  2. Sudoku solving algorithms - Wikipedia

    en.wikipedia.org/wiki/Sudoku_solving_algorithms

    A Sudoku starts with some cells containing numbers (clues), and the goal is to solve the remaining cells. Proper Sudokus have one solution. [1] Players and investigators use a wide range of computer algorithms to solve Sudokus, study their properties, and make new puzzles, including Sudokus with interesting symmetries and other properties.

  3. Str8ts - Wikipedia

    en.wikipedia.org/wiki/Str8ts

    Solution to the sample puzzle. The solver is given a 9x9 grid, partially divided by black cells into compartments. Each compartment, vertically or horizontally, must contain a straight – a set of consecutive numbers, but in any order. For example: 7, 6, 4, 5 is valid, but 1, 3, 8, 7 is not.

  4. Mathematics of Sudoku - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_Sudoku

    A minimal puzzle is a proper puzzle from which no clue can be removed without introducing additional solutions. Solving Sudokus from the viewpoint of a player has been explored in Denis Berthier's book "The Hidden Logic of Sudoku" (2007) [ 7 ] which considers strategies such as "hidden xy-chains".

  5. Sudoku - Wikipedia

    en.wikipedia.org/wiki/Sudoku

    On July 6, 1895, Le Siècle 's rival, La France, refined the puzzle so that it was almost a modern Sudoku and named it carré magique diabolique ('diabolical magic square'). It simplified the 9×9 magic square puzzle so that each row, column, and broken diagonals contained only the numbers 1–9, but did not mark the subsquares. Although they ...

  6. Logic Masters India - Wikipedia

    en.wikipedia.org/wiki/Logic_Masters_India

    Each Sudoku Mahabharat round consists of six Standard Sudokus (two 6X6, four 9X9) and six Sudoku Variants (each variant will appear in both sizes, i. e. 6X6 and 9X9). [2] Each Puzzle Ramayan round consists of three puzzles each in 6 puzzle types within the theme (in double theme rounds, three puzzles each in 3 puzzle types within each theme ...

  7. Sliding puzzle - Wikipedia

    en.wikipedia.org/wiki/Sliding_puzzle

    A sliding puzzle, sliding block puzzle, or sliding tile puzzle is a combination puzzle that challenges a player to slide (frequently flat) pieces along certain routes (usually on a board) to establish a certain end-configuration. The pieces to be moved may consist of simple shapes, or they may be imprinted with colours, patterns, sections of a ...

  8. Killer sudoku - Wikipedia

    en.wikipedia.org/wiki/Killer_Sudoku

    Traditionally, as with regular sudoku puzzles, the grid layout is symmetrical around a diagonal, horizontal or vertical axis, or a quarter or half turn about the centre. This is a matter of aesthetics, though, rather than obligatory: many Japanese puzzle-makers will make small deviations from perfect symmetry for the sake of improving the puzzle.

  9. 3 in Three - Wikipedia

    en.wikipedia.org/wiki/3_in_Three

    Some of the prominent puzzle types include: Lift puzzles - the 3 must navigate across a field of lifts by putting her lift and the lift to her right at the same level. Mesh puzzles - the 3 must change a mesh (of sizes ranging from 3x3 to 9x9) to match a given pattern. Missing vowels - the 3 must add missing vowels to common proverbs or homophones.