sudoku

Thân thiện

A person solves a sudoku puzzle on a newspaper.

Definition

1. Noun:
   • A logic-based number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 subgrids that compose the grid contains all of the digits from 1 to 9 exactly once.

Usage

• Sudoku is an uncountable noun when referring to the puzzle type or activity in general.
  • She enjoys doing sudoku in the newspaper every morning.
• It is a countable noun when referring to a specific puzzle grid.
  • This sudoku is particularly challenging.
  • I've completed three sudokus today.

Examples

Advanced Usage

• "To do/solve a sudoku": The standard collocation for the activity of working on the puzzle.
  • I like to do a sudoku with my coffee.
• "A sudoku grid": Refers to the 9x9 playing board itself.
  • The sudoku grid was partially filled with "given" numbers.

Variants and Related Words

• Killer Sudoku (n): A variant where the grid is also divided into cages, each with a target sum that the numbers within must add up to, without repeating digits within a cage.
• Samurai Sudoku (n): A variant consisting of five overlapping 9x9 grids.
• Sudoku Solver (n): A person or, more commonly, a computer program designed to solve sudoku puzzles.

Synonyms

• Number puzzle: A general term for puzzles based on digits and logic.
• Logic puzzle: A broader category of puzzles solved by deductive reasoning, which includes sudoku.

Related Idioms & Phrases

• Like a sudoku: Used informally to describe a complex situation that requires careful, logical steps to resolve.
  • Figuring out the new tax code is like a sudoku; you have to fit all the pieces together correctly.

Học thuật

Noun

1. a number puzzle in which the numbers 1 through 9 must be placed into a grid of cells so that each row or column contains only one of each number