Sudoku vs Spectral

Sudoku — but make it colorful. Sudoku: Color replaces numbers with 9 vibrant hues, making every puzzle a visual delight that's easy to pick up and impossible to put down. HOW IT WORKS Fill every row, column, and 3×3 box with all 9 colors — no repeats. The same satisfying logic as classic Sudoku, but the color format welcomes newcomers while keeping all the depth veterans love. FOUR WAYS TO PLAY → New Game — choose Breezy, Easy, Medium, Hard, or Expert difficulty → Daily Challenge — a new puzzle every day with a unique twist: No Mistakes mode, Time Attack, or Hintless runs. Build your streak. → Expert Mode — wrong placements are allowed. Spot and fix your own mistakes. Every undo counts. → Online Multiplayer — race real opponents over the internet. Share a room code, get matched in seconds, and settle it with an instant rematch. BEAUTIFUL BY DESIGN • 7 hand-crafted color palettes: Original, Horizon, Spring, Summer, Autumn, Winter, and the dark Nightmare Pack • Light & dark themes that follow your system setting • Clean, distraction-free board built for touchscreens ACHIEVEMENTS & LEADERBOARDS • 70 achievements: speed runs, perfect games, streaks, combos, and more • Game Center leaderboards — compete for the fastest times globally • Daily streak tracker with 7-day calendar view SMART FEATURES • Auto-notes instantly show all valid candidates • Color conflict highlighting and remaining-count badges • Procedural sound effects and haptic feedback • Full game save — resume exactly where you left off Free to play. Remove Ads and the Nightmare Palette Pack are available as optional purchases.

Crack the hidden color code in 6 guesses. Four new daily puzzles every day, in four sizes, with a clean new look. SIMPLE RULES: - Guess the hidden color sequence from 12 vibrant colors - Green = correct color, correct position - Yellow = correct color, wrong position - Red = not in the solution - Use Wordle-style deduction and Mastermind logic to solve it in 6 tries FOUR WAYS TO PLAY: - Mini: 3-color sequence. Fast, sharp, satisfying. - Lite: 4-color sequence. A focused daily challenge. - Classic: 5-color sequence. The original Spectral experience. - Max: 6-color sequence. For players who want a real test. FREE FOREVER: - All four daily puzzles, free every day for every player - One free-play puzzle per day, in the size you choose - Streaks, win distribution and detailed stats for every size - Game Center leaderboards and achievements - No ads, ever UNLOCK UNLIMITED AT ONE LOW PRICE: - Unlimited free-play puzzles in any size, any time - Full archive: every past daily puzzle in all four sizes, browsable by calendar - One-time purchase, no subscription DESIGNED FOR EVERY SCREEN: - Built for iPhone, iPhone Duo and iPad, in portrait and landscape - On iPhone Duo, the board and keyboard sit neatly around the fold - Put the keyboard on the left or right in landscape - Colorblind mode adds a unique shape to every color - Supports Reduce Motion and Increase Contrast - Full dark and light mode support PERFECT FOR: - Fans of Wordle, Mastermind and other logic puzzles - Quick mental breaks (2–5 minutes per puzzle) - Players who want more puzzle variety without more complexity - Anyone who likes a daily ritual Clean design. Sharp logic. Four ways to master the spectrum. Privacy Policy: https://spectral.redfuryllc.com/privacy Terms of Use: https://spectral.redfuryllc.com/terms