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Overview

Daily Sudoku offers a fresh 9×9 logic puzzle each day. Fill digits 1–9 so that each row, column, and 3×3 box contains all numbers without repetition. Many hosts provide multiple difficulties, pencil marks, and validation tools.

How to Play

• Select a cell and type a digit; use pencil marks (notes) to track candidates.
• Apply basic techniques such as singles, hidden singles, and elimination by scanning peers.
• On higher difficulties, learn advanced patterns (pairs, X‑Wing, etc.).

Controls

• Number keys to enter digits; Shift/Right‑click toggles pencil marks (site‑dependent); Undo/Redo and Check tools are common.

Tips and Strategies

• Start with singles found by scanning each row/column/box.
• Use notes consistently and clear them after placing a number.
• Avoid guesswork; if the host allows, use error‑highlighting conservatively.

FAQ

• Q: What difficulties are available? A: Commonly Easy/Medium/Hard; daily sets may rotate difficulties.
• Q: Do online versions support pencil marks? A: Most implementations support notes and candidate marking.