ACT English Practice

Front

What does the name 'Sudoku' mean in Japanese?

Back

The name 'Sudoku' is derived from the phrase meaning 'single number'.

Front

What is the basic structure of a Sudoku puzzle?

Back

A Sudoku puzzle consists of a nine-by-nine grid with a total of 81 spaces.

Front

What is the objective of solving a Sudoku puzzle?

Back

The objective is to fill the grid with numbers from one to nine, ensuring that each number appears only once in each row, column, and 3x3 subgrid.

Front

Why is it important to keep the preceding sentence when discussing Sudoku?

Back

It provides context and helps the reader understand the process of solving the puzzle.

Front

What is the role of the digits already in place in a Sudoku puzzle?

Back

They serve as clues to help the solver determine the placement of the remaining numbers.

Front

What should a solver use to fill in a Sudoku puzzle?

Back

A pencil with a good eraser is recommended for making changes easily.

Front

What does it mean for a number to appear 'only once' in a row or column in Sudoku?

Back

It means that each number from one to nine must be unique within that row or column.

Front

What is a common mistake to avoid when solving Sudoku puzzles?

Back

Avoid placing the same number in the same row, column, or 3x3 subgrid.

Front

How can a player start solving a Sudoku puzzle?

Back

By looking for rows, columns, or subgrids that have the most numbers filled in and deducing the missing numbers.

Front

What is the significance of the term 'task' in the context of Sudoku?

Back

The 'task' refers to the challenge of determining which numbers belong in the empty spaces.