Shape Sudoku vs Pixel

form9 is sudoku, played with shapes. The same 9×9 logic you know — but every cell holds one of nine quiet silhouettes instead of a digit. Nothing to read, nothing to count — just pattern and logic. That makes it a natural fit for people with dyscalculia, kids still learning their numbers, language learners, and anyone who simply thinks in shapes. • A fresh daily puzzle, with a streak to keep • Five difficulties — Easy, Medium, Hard, Expert, and Master • Notes, undo, hints, and gentle error highlighting • Colorblind-friendly by design — shapes carry the meaning, not colors. Nothing to toggle. • Full VoiceOver support — every shape has a clear spoken name • Optional color-hint mode for a redundant cue • Reduce Motion respected • No ads. No tracking. Ever. form9 Pro (one-time purchase) unlocks: • Expert & Master difficulty • Statistics — best times, completions, hint-free streaks • The daily archive — replay any past puzzle Made by a solo developer who believes a good logic puzzle deserves a calm, quiet home. Terms of Use: https://form9sudoku.app/terms/ Privacy Policy: https://form9sudoku.app/privacy/

Collect every Pixel. Master ice, fire and traps. Reach the Plenum. Pixel: The Challenge is a 3D puzzle game in the spirit of the great tile-based logic classics — completely re-built and yours to master. On every level you gather all the Pixels, find the right keys, and cross water, ice, conveyor belts and monsters until the Plenum portal opens. The logic is grid-clear and deterministic, just like the classics — but the world is real 3D with smooth animation. Best of all: every one of the 80 levels is provably solvable. A solver works out each solution in advance and stores a replay. No level is down to luck. None is unfair. 80 BASE LEVELS INCLUDED · 50 OPTIONAL PREMIUM LEVELS The app purchase includes all 80 base levels across 8 worlds. For more challenges, the optional “Premium Pack – The Plenum” unlocks 50 additional levels with a one-time in-app purchase. Purchased premium levels remain available and purchases can be restored. No subscriptions, no currency, no energy timers, no ads. WHY YOU'LL LOVE IT • 80 hand-crafted levels across 8 worlds — every one guaranteed solvable • Classic logic, real 3D — plan it, solve it, execute it cleanly • Two art styles — switch between Voxel (chunky and bright) and Low-Poly (soft and modern) at any time • Three cameras — third-person, first-person or top-down; see the puzzle your way • Fair for everyone — chase 3 stars as a pro, or switch on Casual mode with no time pressure • Stuck? Watch the solution — a built-in walkthrough shows the proven path • 100% ad-free — no ads, no tracking, no pop-ups, plays offline WHAT STANDS IN YOUR WAY Keys and doors, water, fire, slippery ice, conveyor belts, bombs, teleporters, cloning machines, switches and buttons — and all sorts of monsters that move on their own. WANT A LOOK FIRST? The first 20 levels can be played for free in your browser, no download and no account: https://pixelplenum.com/pixel-the-challenge.html Like what you find there? The app gives you the same game with all 80 levels, offline and without a browser. LANGUAGES Interface and level texts in English, German, French and Spanish. No ads. No tracking. Just you, the grid, and the way out.