Shape Sudoku: form9

Classic 9×9 sudoku with shapes instead of numbers. A number-free puzzle that color-blind, dyscalculic, and minimalist players enjoy. Just shapes and logic.

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.

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