THE PLAYBOOK · XICHONGLT
Play Sandwich Sudoku with the rules at hand
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. Look at what changes after your first action. Compare the starting position with the example in the Guide. 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.
Give this approach a try
Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Keep the objective visible.
Your goal
Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column. Read that aim before choosing your first action. Notice how the game responds to your input.
Step by step
- 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. Use the control method described here for this activity. Make sure you are interacting with the game rather than the surrounding page.
A closer look at one 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. Notice the change in the playing area.
A common point of confusion
A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Check the rule before repeating the action. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.
Game-specific help
When I return, what is the goal of Sandwich Sudoku?
For clarity: Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column.
For my first round, how do I control Sandwich Sudoku?
For clarity: Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game.
Before I begin, 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.
While learning, what should I watch out for in Sandwich Sudoku?
The key detail is this: A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction.
For my first round, what format does Sandwich Sudoku offer?
The key detail is this: 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.
On this playing page, which play mode does Sandwich Sudoku use?
The key detail is this: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.