THE PLAYBOOK · HEY172
4x4 Sudoku: instructions and practice
Open 4x4 Sudoku, check the instructions and begin a round. Fill all cells with 1–4; do not repeat a symbol in any row, column or region. Keep the game area visible while you use its controls. Read the objective before making your first input. Use the example below to understand a decision.
An idea for your next attempt
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Keep the objective visible.
What you are aiming for
Fill all cells with 1–4; do not repeat a symbol in any row, column or region. Keep that objective in view throughout the round. Notice how the game responds to your input.
Start here and follow along
- Select an empty cell. The original clues cannot be edited.
- Choose a symbol from the number pad, or type it on a keyboard.
- Turn Notes on to record candidate symbols without committing an answer.
- Use Check entries to check your filled values. Hint reveals one value from the verified solution.
- Complete the board, or choose New puzzle for another board.
Choosing and moving on screen
Tap or click a cell and use the number pad. Keyboard: arrows select cells; digits (and A–G on 16×16) enter values; Backspace erases. Read a button’s label before selecting it. Return to the rules if the result is unexpected.
Work through an example
On one puzzle in this collection, row 1, column 2 has 2 in its solution. Read the clues on your current board before using that value; another puzzle can need a different entry. Use the example as a guide rather than a substitute for reading your board. Verify the rule before continuing.
One detail worth checking
Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule. Read the feedback to see why an action did not have the expected result. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
More answers before you play
Before I begin, what is the goal of 4x4 Sudoku?
The key detail is this: Fill all cells with 1–4; do not repeat a symbol in any row, column or region.
As a new player, how do I control 4x4 Sudoku?
The key detail is this: Tap or click a cell and use the number pad. Keyboard: arrows select cells; digits (and A–G on 16×16) enter values; Backspace erases.
As a new player, what example helps explain 4x4 Sudoku?
Before filling a cell, compare the symbols already used in its row, column and 2 × 2 region. A candidate must be absent from all three.
On this playing page, what should I watch out for in 4x4 Sudoku?
Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule.
Before I begin, what format does 4x4 Sudoku offer?
Keep this in mind: Play using the solo mode shown on this page. Read the controls before starting a new round.
As a new player, which play mode does 4x4 Sudoku use?
Here is the relevant explanation: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.