Right Angle vs Sudoku

Welcome to Nerd Games, a collection of brain-bending apps that are sure to challenge even the smartest minds out there! And we're excited to introduce our latest addition to the family: Right Angle! In Right Angle, you'll put your geometry skills to the test as you try to correctly guess the angles displayed on the screen. Think you can tell a right angle from an acute or obtuse one? This game will put you to the test! With its sleek and modern design, Right Angle is as visually appealing as it is mentally stimulating. And with a variety of difficulty levels and game modes to choose from, you'll never get bored! So whether you're a math genius or just looking for a fun and challenging way to pass the time, download Right Angle today and see if you have what it takes to be a true angle master!

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.