THE PLAYBOOK · GZDINGZAN
Getting started with Sandwich Sudoku
Sandwich Sudoku gives you a focused activity to play in your browser. Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column. Keep the game area visible while you use its controls. Make your first input carefully and watch the result. Use the example below to understand a decision.
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.
An idea for your next attempt
When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Use the example to check your reasoning.
What you need to achieve
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. Check the rules when you are unsure.
Follow these playing steps
- 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.
Using the playing area
Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game. Keep the playing area visible while using these controls. Avoid pressing the same control repeatedly while a move is being processed.
Follow the example
If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13. Compare this with the rule that governs the move. Consider the next action carefully.
Where a round can go wrong
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. A different version of the game may use a different rule. After a move, check what changed. Decide which rule explains the new state before acting again.
Further help with the game
While reading the Guide, 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.
Before I begin, 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.
For a quick reminder, what example helps explain Sandwich Sudoku?
For clarity: If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13.
While learning, what should I watch out for in Sandwich Sudoku?
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction.
While reading the Guide, 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.
For this browser game, which play mode does Sandwich Sudoku use?
For clarity: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
