Game guide · DELIMETCH
Rules, controls and help for 4x4 Sudoku
Make 4x4 Sudoku your next activity in the game library. 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. Keep the instructions close while learning this activity. Check the relevant rule before repeating a move.
Practice with a purpose
Take enough time to read a new position. If a game has a timer, learn its controls first rather than searching for them during the round. Make the next step deliberately.
The objective of a round
Fill all cells with 1–4; do not repeat a symbol in any row, column or region. Read that aim before choosing your first action. Check the rules when you are unsure.
Step by step
- 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. Keep the playing area visible while using these controls. Use the visible help when you are unsure of the next input.
Work through an example
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. Compare this with the rule that governs the move. Notice the change in the playing area.
One detail worth checking
Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule. Check the rule before repeating the action. Read one step at a time and try it on the playing area. Match the instruction to the control you use.
Read these answers for extra help
While reading the Guide, what is the goal of 4x4 Sudoku?
Fill all cells with 1–4; do not repeat a symbol in any row, column or region.
While reading the Guide, how do I control 4x4 Sudoku?
Here is the relevant explanation: 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.
What example helps explain 4x4 Sudoku?
Here is the relevant explanation: 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.
When I return, what should I watch out for in 4x4 Sudoku?
For clarity: Notes are reminders, not final entries. A full board only counts as complete when it satisfies every rule.
What format does 4x4 Sudoku offer?
For clarity: Play using the solo mode shown on this page. Read the controls before starting a new round.
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.
Before I begin, where should I start with 4x4 Sudoku?
Select an empty cell. The original clues cannot be edited.
As a new player, do I need an account or a payment for 4x4 Sudoku?
Here is the relevant explanation: No player account or payment is needed. Game scores are recreational results, not cash prizes.
When I return, how can I find 4x4 Sudoku again?
Keep this in mind: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
For a quick reminder, how do I report an issue with 4x4 Sudoku?
Keep this in mind: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.
