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2. Killer sudoku - Wikipedia

   en.wikipedia.org/wiki/Killer_Sudoku

   Killer sudoku (also killer su doku, sumdoku, sum doku, sumoku, addoku, or samunanpure サムナンプレ sum-num(ber) pla(ce)) is a puzzle that combines elements of sudoku and kakuro. Despite the name, the simpler killer sudokus can be easier to solve than regular sudokus, depending on the solver's skill at mental arithmetic ; the hardest ones ...

3. The Hardest Logic Puzzle Ever - Wikipedia

   en.wikipedia.org/wiki/The_Hardest_Logic_Puzzle_Ever

   The Hardest Logic Puzzle Ever is a logic puzzle so called by American philosopher and logician George Boolos and published in The Harvard Review of Philosophy in 1996. [ 1 ] [ 2 ] Boolos' article includes multiple ways of solving the problem.

4. Mathematics of Sudoku - Wikipedia

   en.wikipedia.org/wiki/Mathematics_of_Sudoku

   The general problem of solving Sudoku puzzles on n 2 ×n 2 grids of n×n blocks is known to be NP-complete. [8] A puzzle can be expressed as a graph coloring problem. [9] The aim is to construct a 9-coloring of a particular graph, given a partial 9-coloring. The Sudoku graph has 81 vertices, one vertex for each cell.

5. Puzzle solutions for Tuesday, Jan. 7, 2025

   www.aol.com/news/puzzle-solutions-tuesday-jan-7...

   Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. Puzzle solutions for Tuesday, Jan. 7, 2025 Skip to main content

6. Puzzle solutions for Thursday, Nov. 14, 2024

   www.aol.com/news/puzzle-solutions-thursday-nov...

   SUDOKU. Play the USA TODAY Sudoku Game.. JUMBLE. Jumbles: VINYL GULCH RADISH OPAQUE. Answer: The pharaoh commissioned an artist to decorate his tomb. The result was — “HIRE-O-GLYPHICS”

7. Puzzle solutions for Monday, Nov. 18, 2024

   www.aol.com/news/puzzle-solutions-monday-nov-18...

   Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. Puzzle solutions for Monday, Nov. 18, 2024 Skip to main content

8. Sudoku - Wikipedia

   en.wikipedia.org/wiki/Sudoku

   A Sudoku puzzle can be expressed as a graph coloring problem. [27] The aim is to construct a 9-coloring of a particular graph, given a partial 9-coloring. The fewest clues possible for a proper Sudoku is 17. [28] Tens of thousands of distinct Sudoku puzzles have only 17 clues. [29]

9. Puzzle solutions for Wednesday, Dec. 18, 2024

   www.aol.com/puzzle-solutions-wednesday-dec-18...

   Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers. Puzzle solutions for Wednesday, Dec. 18, 2024 Skip to main content