Number Merge 10

Color Sort, Number & Letter Sort · Updated May 6, 2026

About Number Merge 10

Forget pouring colors down tubes—Number Merge 10 replaces the tube with a grid and the pour with a rectangle-drag. The genre default is sequential sorting; this entry bends it by demanding you sum a contiguous block of digits to exactly 10 before they vanish. You're not sorting into containers—you're carving sums out of a number field, and each removal reshapes the board. The twist: you can grab any rectangle, any size, as long as its contents total 10. That freedom turns every move into a spatial-arithmetic puzzle where leftovers must be carefully managed or they'll block future clears.

There’s something so satisfying about clearing a grid in Number Merge 10. You pick any rectangular block of numbers, and if they add up to exactly 10, poof—gone. It’s part math puzzle, part spatial strategy. You have to think ahead, deciding which area to select for the perfect sum without leaving awkward leftovers. The clean, methodical clearing makes it deeply addictive.

How to Play Number Merge 10

Look at the grid of numbers displayed on the screen.
Select a rectangular area by dragging your mouse or finger across the numbers you want to target.
Ensure the sum of all numbers inside your selected rectangle equals exactly 10.
Release the selection to eliminate those numbers from the grid.
Continue selecting and clearing rectangles that sum to 10 until no moves remain or the grid is empty.

Game Features

Choose any rectangular block—from a single cell to a wide area—as long as its numbers sum to 10.
Grid shrinks dynamically as numbers are removed, creating new spatial opportunities.
Each number is a single digit (1-9), so sums must be calculated quickly.
No tube or container limits—the only constraint is arithmetic and shape.
Grid layout and number placement change each round, offering fresh puzzles.
Clearing requires both math and spatial planning to avoid dead ends.

Tips & Strategies

Check for single-cell 10s first—they are your fastest clears and free up space.
Look for complementary pairs (1+9, 2+8, 3+7, 4+6) adjacent or stacked vertically to form a 2-cell rectangle.
When planning a large rectangle, calculate the sum of its cells mentally before selecting to avoid wasted moves.
After each clear, scan for new 10-sum blocks formed by the removed cells' neighbors.
If you get stuck, try selecting a 1x2 or 2x1 rectangle—smaller shapes often hide easy sums.