🧩 Sudoku OCR Solver

How to use:

1. Upload, drag & drop, or paste (Ctrl+V) an image of a Sudoku puzzle.
2. Draw a rectangle around the grid. Use the "Smart Snap" controls to automatically adjust the selection to the grid lines.
3. Choose a grid size or leave as "Auto-Detect".
4. Click "Process with OCR" (adaptive) or "OCR Method 2" (fixed contrast).
5. Use the image as a reference to fill in/correct the grid, then click "Solve Puzzle".