Sudoku Solver solves Sudoku puzzles using a custom transformer neural network — reasoning through constraints in milliseconds
Sudoku Solver solves Sudoku puzzles using a custom transformer neural network — reasoning through constraints in milliseconds. WHAT MAKES THIS DIFFERENT Traditional solvers use brute-force backtracking. Sudoku Solver takes a fundamentally different approach, using an encoder-only transformer trained on millions of puzzles. The model learns the deep structural patterns of the grid to predict solutions in a single forward pass. HOW IT WORKS The neural network sees all 81 cells at once and predicts blank cells simultaneously. On-device inference runs in under 10ms on the Apple Neural Engine, providing lightning-fast results with mathematical correctness via a built-in verification layer. FEATURES - Solve any 9x9 Sudoku puzzle in milliseconds - Scan printed puzzles with your camera — Vision OCR detects digits automatically - Review and correct scanned digits before solving - Enter puzzles manually with a tap-to-place grid - See the AI's predictions highlighted vs. the original clues - Cell-by-cell animated solve reveal - Input validation highlights conflicting digits as you enter them - Undo support - Dark mode - Runs entirely on-device — no internet required, no data leaves your phone
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