Core Sudoku
SlarsonTech LLC
About this game
- Age 10
- Updated Sep 7, 2025
- OS IOS
Editor reviews
Core Sudoku delivers a pure, elegant Sudoku experience built for focus and flow. Tackle handcrafted puzzles across Easy to Expert, supported by smart notes, number highlighting, and gentle error checks that keep the challenge fair. Train daily with time trials, daily challenges, and streaks, then review detailed stats to improve your solving.
Enjoy clean visuals, fast controls, and offline play. Play classic 9x9 boards, learn with logic based hints, unlock achievements, and customize your board with themes and input styles.
Screenshots
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How to play:
Fill every row, column, and 3x3 block with numbers 1 to 9 without repeats.
Use pencil marks to note possible candidates before committing a number.
Tap a number to highlight its positions and spot conflicts quickly.
Enable error checks if you want instant feedback on mistakes.
Request a logic hint to learn the next step without revealing the full solution.
Complete daily challenges, beat your best times, and climb streaks to master harder levels.