Warm-Up — 100 Sudoku Puzzles | Puzzle Studio Pack

⚠️ Requires 7ThirtyWorld Puzzle Studio (sold separately). This is an expansion pack — a puzzle file that loads into the Studio app. It is not a standalone game and will not open on its own.

100 sudoku puzzles. Every one has exactly one solution, and that has been proved, not assumed.

The gentlest tier in the collection. Every puzzle here can be finished start to finish using the simplest technique in sudoku — scanning for the cell that has only one candidate left. No pairs, no bookkeeping, no guessing. Ideal for a slow morning, or for someone learning the game.

What you get

• 100 puzzles, each with 40 to 46 starting clues
• Guaranteed unique solutions. Every grid was solved exhaustively to confirm exactly one answer exists — no puzzle in this pack can be finished two different ways.
• Graded by technique, not by clue count. Difficulty here means what a human actually has to do, and every puzzle in this pack is solvable by naked singles alone.
• All 100 grids are different. No repeated puzzle anywhere in the collection.
• Ordered gently — the pack opens with the most generous grids and works down.

How it plays in the Studio

Pencil-mark notes, live duplicate highlighting, and a keypad that dims digits once all nine are placed. Nothing is rejected as you type — a row, column or box turns green the moment it is complete and correct.

How to load it

Open 7ThirtyWorld Puzzle Studio, choose Add a pack, and select this file — or just drag the file onto the app. It joins your library permanently and works completely offline.

Instant digital download. One pack file. 100 puzzles. Yours forever.