THE PLAYBOOK · XIQIGLASS
A practical guide to Sandwich Sudoku
Make Sandwich Sudoku your next activity in the game library. 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. Read the objective before making your first input. 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
After a move, check what changed. Decide which rule explains the new state before acting again. Notice the feedback after each input.
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. Keep that objective in view throughout the round. Keep the controls in easy reach.
Work through the instructions
- 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.
Getting comfortable with the controls
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. A new-round button replaces the current round.
Follow the example
If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13. Use the example as a guide rather than a substitute for reading your board. Consider the next action carefully.
A common point of confusion
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Read the feedback to see why an action did not have the expected result. Read one step at a time and try it on the playing area. Match the instruction to the control you use.
Questions about this game
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.
When I return, how do I control Sandwich Sudoku?
Keep this in mind: Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game.
For my first round, what example helps explain Sandwich Sudoku?
The key detail is this: If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13.
When I return, 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.
Before I begin, 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.
Before I begin, 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.