Do I need to guess in Sudoku?

No. Well-crafted puzzles can be solved logically. Start with singles and pairs.

How do I find hidden singles?

Check each row, column, and box for numbers that only appear in one candidate spot.

Use notes whenever you’re unsure; clear them as you place numbers to keep the grid tidy.

Begin with Easy or Medium until you consistently spot singles and pairs.

Starter Path

Build a calm, repeatable flow with scanning, singles, pairs, and clean notes—no guessing required.

Difficulty: Easy–Medium Perfect for first 50 puzzles Read time: ~3–6 mins each

Baseline

Block rows and columns to find lone cells in each box before anything else.

Placement

When only one candidate remains in a cell, place it confidently.

Placement

Find the only spot a number can fit in a row, column, or box—even with other notes present.

Elimination

Pair up candidates to clear them from the rest of the unit and reveal new singles.

Elimination

When two numbers only fit two cells, lock them in and remove other notes there.

Product

Notes mode, undo, hints, music, and mobile controls for a calmer solve.

Next step

Ready for harder grids? Learn pointing pairs, fish patterns, and chains.