Lumina Sudoku: Color Logic

About

Lumina is Sudoku the way it was meant to feel: calm, colorful, and quietly brilliant. Every digit has its own color and its own musical note, so the board doesn't just challenge your logic — it lights up and sings as you solve. Whether you're a complete beginner or a seasoned solver chasing Expert grids, Lumina meets you where you are: hand-crafted puzzles, gentle guidance, and a glowing aurora that grows brighter the closer you get to the solution. WHY YOU'LL LOVE LUMINA • A living aurora — the background blooms with light as your progress grows. • Synesthesia — each number 1–9 has a signature color and a soft, consonant tone. Complete a row, column, or box and it rewards you with a little chime. • Hints that actually teach — instead of just handing you the answer, Lumina names the real solving technique (Naked Single, Hidden Single, Locked Candidates, X-Wing and more) and explains the logic in plain language. • Your solve becomes a song — finish a puzzle and replay your moves as a melody and a sweep of light. EVERY LEVEL, EVERY DAY • Four difficulties — Easy, Medium, Hard, and Expert — each puzzle guaranteed to have one unique solution. • A fresh Daily Challenge every day, with a streak worth keeping. • Smart pencil notes, unlimited undo and redo, and an optional mistake limit. MADE TO FEEL GOOD • Three beautiful themes: Aurora, Midnight, and Paper. • Assists you control — highlight peers, matching numbers, and mistakes, or switch them all off for a pure challenge. • Haptics and sound, tuned to your taste. • Designed for one-handed play, Dynamic Type, and accessibility. QUIET BY DESIGN • No ads. No pop-ups. No accounts. • Plays completely offline. • No tracking and no data collection — your puzzles stay on your device. Sit down, breathe, and let the numbers light up. Made with care by Schnalz.net — https://schnalz.net