Sudoku Glossary

Some terms related to Sudoku:

grid: the most common Sudoku is a square composed by 9x9 cells.

box, block, zone, subgrid: each one of the nine 3x3 grids that compose the whole square.

stack: three vertical connected blocks.

band: three horizontal connected blocks.

chute: either a band or a stack.

given, clue: the initial defined values.

proper puzzle: Sudoku with a unique solution.

irreducible puzzle: is a proper puzzle where no givens can be removed leaving it a proper puzzle.

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