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The puzzle consists of a gray base that resembles a city skyline, plus 36 colored towers. The towers come in six different colors and six different heights. The goal of the puzzle is to place all the towers onto the base so as to form a level cube with each of the six colors appearing once, and only once, in each row and column.
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".
Sudoku can be solved using stochastic (random-based) algorithms. [11] [12] An example of this method is to: Randomly assign numbers to the blank cells in the grid. Calculate the number of errors. "Shuffle" the inserted numbers until the number of mistakes is reduced to zero. A solution to the puzzle is then found.
Play the USA TODAY Crossword Puzzle. Los Angeles Times crossword Today’s crossword (McMeel) Daily Commuter crossword SUDOKU. Play the USA TODAY Sudoku Game. JUMBLE. Jumbles: EAGLE MAKER FIDDLE ...
Play the USA TODAY Crossword Puzzle. Los Angeles Times crossword Today’s crossword (McMeel) Daily Commuter crossword SUDOKU. Play the USA TODAY Sudoku Game. JUMBLE. Jumbles: SWIFT CRACK GALLON ...
Play the USA TODAY Crossword Puzzle. Los Angeles Times crossword Today’s crossword (McMeel) Daily Commuter crossword SUDOKU. Play the USA TODAY Sudoku Game. JUMBLE. Jumbles: IMPLY SWISH AWAKEN ...
Another variant on the logic of the solution is "Clueless Sudoku", in which nine 9×9 Sudoku grids are each placed in a 3×3 array. The center cell in each 3×3 grid of all nine puzzles is left blank and forms a tenth Sudoku puzzle without any cell completed; hence, "clueless". [28] Examples and other variants can be found in the Glossary of ...
Every solved sudoku and every sub-grid of it is a Latin square, meaning every symbol occurs exactly once in each row and column. At the starting point (in this case after the erasure channel) the puzzle is only partially complete but has only one unique solution. For channel codes also other varieties of sudokus are conceivable.