Rainbow Sudoku

Beautiful Sudoku with 13 levels and a daily challenge—clean, fast, and keyboard-friendly. No account required. ## What it is Rainbow Sudoku is a clean, fast Sudoku for Chrome. It helps you **learn while you play** with gentle, optional teaching cues and a friction-free interface. ## Why install it * **Build real skills** with subtle hints that reinforce logic (never spoil answers). * **Zero friction**: no sign-up, no clutter—just play. * **Feel-good flow**: crisp grid, smooth controls, satisfying completion. ## Key features * **13 difficulty levels**: Novice → Maestro (plus 6×6 and 9×9). * **Daily Challenge** with streak tracking. * **Teaching cues (optional)** highlight patterns and strategy, not solutions. * **Local stats**: personal bests and times saved on your device. * **Keyboard friendly**: arrows to move, numbers to fill, backspace to clear. * **Respectful experience**: quick loads, clear UI, no dark patterns. ## How it works 1. Pick a level (or Daily). 2. Play with clean controls and optional hints. 3. Finish and track your streaks and personal bests. ## Pricing * **Free**: generous play with light limits. * **Pro / Plus** (optional): unlimited play, ad caps, premium themes & sounds. ## Privacy & Permissions * **No account required**. * **Progress saved locally** on your device. * Minimal storage for settings and stats; no cross-site tracking. ## Support Questions or feedback? https://snazzypromotion.com/support/index.php?a=add&catid=27 .