Game guide · HNSGYQT
Sandwich Sudoku: learn through an example
Start Sandwich Sudoku by looking at the playing area and its controls. Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column. Use the example below to understand a decision. Choose a comfortable screen position before beginning. Check the relevant rule before repeating a move.
This collection contains 8 puzzles. Progress is saved in this browser. The same puzzle can appear again; the collection is not labelled with calibrated difficulty levels.
A small practice goal
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Notice the feedback after each input.
What counts as success
Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column. Use the instructions to see which actions move you towards it. The example below illustrates a decision.
How to proceed
- Select an editable cell.
- Enter a value using the keypad or keyboard; Notes stores candidates.
- Read the region, cage, arrow or outside clues alongside the normal constraints.
- Check entries verifies the completed board; Undo reverses your last input.
- New puzzle selects another included puzzle.
How to interact with the game
Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game. Read a button’s label before selecting it. Read the example below alongside these instructions.
An example to follow
If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13. Apply the same reasoning to the position in your own round. Keep the game’s format in mind.
Check this before moving on
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Take a moment to reassess the position before continuing. Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board.
Clarifying the way this game works
For a quick reminder, what is the goal of Sandwich Sudoku?
Keep this in mind: Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column.
While reading the Guide, how do I control Sandwich Sudoku?
The key detail is this: Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game.
On this playing page, what example helps explain Sandwich Sudoku?
Keep this in mind: If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13.
For a quick reminder, what should I watch out for in Sandwich Sudoku?
Here is the relevant explanation: A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction.
For this browser game, what format does Sandwich Sudoku offer?
This collection contains 8 puzzles. Progress is saved in this browser. The same puzzle can appear again; the collection is not labelled with calibrated difficulty levels.
When I return, which play mode does Sandwich Sudoku use?
The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
As a new player, where should I start with Sandwich Sudoku?
For clarity: Select an editable cell.
On this playing page, do I need an account or a payment for Sandwich Sudoku?
For clarity: No player account or payment is needed. Game scores are recreational results, not cash prizes.
As a new player, how can I find Sandwich 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.
Before I begin, how do I report an issue with Sandwich Sudoku?
Here is the relevant explanation: 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.