Medium Jigsaw Sudoku Puzzles

Jigsaw Sudoku, also known as irregular Sudoku or irregularly shaped Sudoku, is a popular variation of the classic Sudoku puzzle. In traditional Sudoku, the puzzle is divided into a 9x9 grid, further subdivided into nine 3x3 sub-grids called "regions" or "boxes."

The goal is to fill in the grid with numbers from 1 to N (where N is the grid size) in such a way that each row, column, and region contains every digit exactly once.

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Jigsaw Sudoku maintains the same rules as traditional Sudoku, with the additional challenge of irregularly shaped regions or boxes instead of the usual 3x3 sub grids for 9x9 puzzle.

These irregular shapes can take on various forms, and they do not necessarily form perfect squares. This adds a new layer of complexity and makes the puzzles more visually interesting.

Basic rules for Jigsaw Sudoku:

The rules are for NxN grid where N is the grid size; e.g. N=9 means 9x9 grid and may have values like 4, 6, 8, 9, 16 etc.

  • Each row must contain every digit from 1 to N exactly once.
  • Each column must also contain every digit from 1 to N exactly once.
  • Within each irregularly shaped region, every digit from 1 to N must appear exactly once.

Solving Jigsaw Sudoku puzzles requires logic, deduction, and careful consideration of the relationships between the numbers within the irregular regions. As with traditional Sudoku, players start with a few given numbers (clues) and use a process of elimination and logic to fill in the remaining cells in the grid.

Jigsaw Sudoku puzzles come in various levels of difficulty, with more complex shapes leading to more challenging puzzles. They have gained popularity as an entertaining and stimulating variation of the classic Sudoku game, offering a fresh twist for enthusiasts of number puzzles.