1Suduko vs Sudoku Sages

1Sudoku is a free basic 9x9 sudoku game without the option of taking notes. Select between 7 different levels. It offers an infinite number of games, as it keeps generating new games in the background when existing games are used/played.

Sudoku without the noise, made for players who enjoy taking their time. No ads, subscriptions, in-app purchases, forced streaks, or analytics. All nine themes are included from the start, and there is no separate account to create. DIFFICULTY THAT MEANS SOMETHING Puzzles are graded by the logical techniques needed to solve them, not simply by the number of given digits. A human-style solver checks every puzzle step by step. Six philosopher-named tiers range from the approachable Thales to the demanding Socrates. CHOOSE HOW MUCH HELP YOU WANT Puzzle difficulty and assistance are separate settings: • Beginner — highlights, mistake checking, and hints are enabled. • Normal — highlights and hints are available when you ask for them. • Hardcore — no highlights or mistake checking, just pencil marks. HINTS WITH AN EXPLANATION A hint does not immediately fill in the answer. It first names the technique and points you towards the relevant part of the board, giving you a chance to spot the move yourself. If you need more help, you can follow the reasoning one step at a time and then apply the move. Hints also work when you have not entered any pencil marks. ACHIEVEMENTS WITHOUT OBLIGATIONS Game Center can mark your first solved puzzle, each difficulty tier, and the completion of all six. There are no achievements for daily logins or hundreds of repetitive games. Game Center is entirely optional. NINE COMPLETE THEMES Dark paper, classic, newsprint, blueprint, neon, chalk, and more. Each theme changes the whole board rather than simply recolouring a few controls. Every theme is free and available from the beginning. Games, settings, and records stay on your device. The app has no servers, analytics, or account system of its own. If you use Game Center, only achievement progress is sent to Apple. Sound is off by default. Available in English, Russian, and Japanese.