About game
Sumdoku: Collect Numbers challenges your brain as you calculate the correct digits to reach specific totals on a grid. You must carefully toggle cells to match the target sums displayed on the edges of the board. Every row and column requires precise arithmetic to solve the puzzle successfully. Clicking a cell marks it with a circle, but you can always tap again to toggle it off if you miscalculate. This logic game keeps things fresh by scaling difficulty from small three-by-three grids up to complex five-by-five layouts. Tracking your progress helps you measure how many levels you have conquered during your play sessions. Developing your math skills feels satisfying when you finally clear a difficult board without any errors. Since your progress saves automatically, you can return to your current challenge whenever you have a free moment. Play Sumdoku: Collect Numbers directly in your browser today without any downloads or annoying installations.
How to play
Look at the targets around the edges of the board: they show what sum should be reached in each row and each column. Click the numbered cells to mark them with circles.
A circle means that the selected number is included in the final sum. Choose the right cells so that all rows and columns match their targets. If you make a mistake, click the cell again to remove the mark.
When all the required sums are collected correctly, the level is completed.
Features
- Dynamic Grid Scaling: Adjust your mental workload by choosing between compact 3x3 boards and larger 5x5 setups.
- Persistent Statistics: Monitor your personal growth through an automated tracker that counts every successfully solved puzzle.
- Error Correction: Modify your selections instantly by tapping cells to toggle them on or off until the math aligns.
- No-Stress Pacing: Enjoy a calm atmosphere that prioritizes clear logic over fast reflexes or timed pressure.
Who is it for
Puzzle lovers and math enthusiasts who crave a quiet mental workout. Fans of logic challenges will appreciate the clean interface, while students seeking a quick way to practice basic mental arithmetic will find the mechanics helpful for sharpening their focus during short breaks throughout the day.
Controls
Select number
Tap a cell on mobile or click it with your mouse.
Deselect number
Tap or click the same cell again to remove the mark.
Reset progress
Use the refresh button to clear the board and start fresh.
FAQ
How do I win in Sumdoku: Collect Numbers?
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You win by selecting specific numbers in each row and column so that their total matches the target value shown on the grid edges.
Is Sumdoku: Collect Numbers free to play?
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Yes, you can play the full version of Sumdoku: Collect Numbers in your browser without any registration or hidden fees.
Can I play Sumdoku: Collect Numbers on my phone?
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The game is fully optimized for mobile browsers, allowing you to tap your way through puzzles on any smartphone or tablet.
