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373GSTHE EVERYDAY PLAY CLUB

Solo · FREE PLAY

Sandwich Sudoku

Read the rules ↓
Sudoku
Choose your controls and enjoy a free round.
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THE PLAYBOOK · 373GS

How to play 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. Look at what changes after your first action. Read the objective before making your first input. 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.

Build a steady rhythm

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. Use the example to check your reasoning.

Your goal

Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column. An attractive position is not enough unless the goal is met. Keep the controls in easy reach.

Step by step

  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.

Controls

Click or tap cells and the digit pad. Use Notes, Undo and Reveal selected. Large boards scroll inside the game. A careful first action helps you become familiar with the layout. Use one clear input at a time.

A useful example

If the values strictly between 1 and 9 are 2, 4 and 7, the sandwich clue is 13. Focus on why the action is allowed, not only its outcome. Check the stated objective.

Watch out for this

A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction. Take a moment to reassess the position before continuing. Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart.

Common questions

Before I begin, what is the goal of Sandwich Sudoku?

Here is the relevant explanation: Solve the Sudoku while each outside clue gives the sum strictly between 1 and 9 in that row or column.

On this playing page, 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.

For this browser game, what example helps explain Sandwich Sudoku?

Here is the relevant explanation: 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?

Here is the relevant explanation: A full board must obey every extra rule. Reveal supplies assistance; it is not an earned deduction.

When I return, 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 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.

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