Play or print one original Sudoku with a verified unique solution. Type 1–9, check entries, see a starting hint or reveal the answer. Free game by PlanPusk with Codex assistance. Our paid Russian-language PDF book is optional and follows the seller’s store-chat delivery instructions; automatic delivery is not promised. HTML.cafe also loads an external milkymouse.com script whose data collection we have not verified.
Select an empty cell and type 1–9. Use Tab or arrow keys to move between editable cells. Check entries marks wrong digits. Clear my entries resets your entries. The starting hint and complete answer are optional. Browser printing creates a blank A4 puzzle; entries are cleared on reload.
PlanPusk Sudoku — play or print was submitted to SlowDen by PlanPusk. SlowDen did not make this game - it is published here from the developer's own submission, added on 2026-10-24. It runs in the browser with no download, no install and no sign-up.