Fill the 9x9 grid so each row, column, and 3x3 box contains digits 1-9 exactly once. Click a cell and type a number.
This is a classic game you can play online for free at FunHeap.com — no downloads, no registration required.
Check the How to Play section above for step-by-step instructions. Practice and try different strategies to master the game!
Yes! All FunHeap games work on mobile phones, tablets, and desktop computers. Just open your browser and start playing.
Absolutely! 100% free — no hidden fees, no credit card, no subscription. Just play as much as you want.
Yes! Check the "You May Also Like" section for similar games, or browse our full collection of 55+ free games at FunHeap.com.