THE PLAYBOOK · 09JB
An introduction to playing Sandwich Sudoku
Take a moment with Sandwich Sudoku before moving to another game. Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column. Check the relevant rule before repeating a move. Make your first input carefully and watch the result. Look at what changes after your first action.
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.
Practice with a purpose
Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention. Keep the objective visible.
The purpose of your moves
Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column. The feedback beside the game helps you follow the round. Notice how the game responds to your input.
How a round unfolds
- 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.
Making selections and moves
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. Contact us with the game and device if a control does not respond.
Try this example
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. Notice the change in the playing area.
One detail worth checking
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. 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.
Questions about this game
For this browser 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.
How do I control Sandwich Sudoku?
Here is the relevant explanation: 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?
The key detail is this: If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13.
Before I begin, 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.
While learning, what format does Sandwich Sudoku offer?
For clarity: 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?
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.
