Sudoku Pulse

Hints that do more than fill in the answer—they show you why.

Place correct numbers in quick succession to build a Pulse combo. When you get stuck, a hint walks through the deduction step by step. A short first-launch tutorial lets you try both features right away.

Hints that teach
• See the answer and the reasoning behind it, step by step.
• Highlight the cells used in each deduction.
• With no cell selected, find the next cell you can solve.

Four difficulties graded by technique
• Easy: singles
• Medium: locked candidates
• Hard: pairs, triples, and X-Wing
• Expert: Swordfish, XY-Wing, and coloring

Every puzzle has one solution and can be solved by logic alone.

Pulse combo
• Keep a steady tempo to raise the multiplier up to ×10.
• The board pulses as your combo grows, with haptic feedback.
• A mistake or a hint breaks the combo.

Technique book and global ranking
• Revisit examples of all 11 solving techniques.
• Finished puzzles score by speed for their difficulty plus a combo bonus.
• Sign in to join a global ranking with server-verified results.

Also includes a shared daily puzzle, notes, auto candidates, undo, auto-save, statistics, and support for eight languages.