Prime Sudoku

Sure! Here’s a rewritten version that retains the HTML structure:

Sudoku is a soothing yet demanding numerical puzzle game designed for Jio feature phones. Populate the 9×9 grid with digits 1 through 9 without duplicating any in a row, column, or 3×3 block. Select from various difficulty tiers and evaluate your reasoning abilities.
Initiate Sudoku by picking a difficulty tier. Fill each row, column, and 3×3 block with digits ranging from 1 to 9 without repeating any numeral. Tap a cell to select it, then opt for a digit to insert. Use the erase button to rectify errors. The game concludes when a