Sudoku Solver

Tips

Just hold your camera over the puzzle. A green outline means it has locked onto the grid; it snaps by itself only once it can actually read the whole puzzle. If it keeps scanning, the status line tells you what to fix (closer, steadier, more light).

Fill the frame with the grid, keep a flat angle, and use even lighting. Tap Capture now to force a snap and see exactly what it read (misreads show in orange). Retake goes back to scanning.