Microsoft Sudoku

Engage with free online sudoku puzzles and enhance your logical thinking. This brain-teaser from the Microsoft game collection offers two exciting game modes. The classic sudoku features 9x9 grids with traditional 3x3 houses. You’ll receive only 3 hints per level, but feel free to take notes to solve the sudoku puzzles online free of charge. Additionally, you can highlight incorrect numbers to avoid duplicates as you play. 

In addition to the classic sudoku, you'll discover irregular levels that come in 4 difficulty settings. The challenge remains the same, as numbers must be unique in every row, column, and house. However, the houses feature random borders, breaking the square pattern. I’m confident that all free board game enthusiasts will get hooked on this captivating puzzle!