A beautiful, ad-free, offline-first mathematical retreat designed around standard Material Design 3 and physical eye-safe dark slate palettes. Discover deep focus and support independent dev crafts.
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Calm, Focused, Free of Noise
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Kanso Sudoku respects your playing focus. Zero distraction, optimized local note storage, and full recovery mechanics.
No telemetry tracking or user data extraction pipelines. Your solve durations and custom stats reside securely within local Room databases on your sandboxed device framework.
Entering solid digits automatically recalculates adjacent pencil notes, eliminating tedious manual clearing across surrounding 3x3 zones and columns.
Keep tabs on your daily improvements, fastest wins, difficulty ratios, and long-term habits without needing any mobile connection.
Take a moment to center your focus. Select empty slots and input digits directly below to test our smart highlights.