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Solo · FREE PLAY

Sandwich Sudoku

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Sudoku
Choose your controls and enjoy a free round.
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THE PLAYBOOK · HNZKBY

Find your footing in Sandwich Sudoku

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. Choose a clear next step rather than rushing through the instructions. Begin with the solo mode shown on the page. Choose a clear next step rather than rushing through the instructions.

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.

Try a more deliberate round

Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow. Refer to the controls when needed.

Understand the aim

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. Check the rules when you are unsure.

The order of play

  1. Select an editable cell.
  2. Enter a value using the keypad or keyboard; Notes stores candidates.
  3. Read the region, cage, arrow or outside clues alongside the normal constraints.
  4. Check entries verifies the completed board; Undo reverses your last input.
  5. New puzzle selects another included puzzle.

The controls to know

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. Make sure you are interacting with the game rather than the surrounding page.

Put the rules into context

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. Read the matching step again.

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.

Read these answers for extra help

For my first round, 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.

When I return, how do I control Sandwich Sudoku?

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?

Keep this in mind: If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13.

For this browser game, what should I watch out for in Sandwich Sudoku?

Keep this in mind: 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?

Keep this in mind: 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 a quick reminder, 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.

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