Sum Master and the colored-region logic behind every grid
Sum Master drops you into a puzzle board where every choice has to satisfy three clue sets at once: rows, columns, and colored regions. The grid looks neat, but each tap changes the numbers on the top, the side, and inside a region, so you keep testing combinations instead of guessing. It’s a sharp fit for math games fans who want to solve everything in the browser.
Row, column, and region totals
Your job is to pick numbers so each line matches its target while every colored area lands on the small value printed inside it. Because one move affects multiple sums, you need to track intersections carefully and build toward the single correct answer. That structure gives the board a real logical edge, and it runs with no download needed.
From 3x3 boards to larger grids
The puzzles begin on compact 3x3 layouts before moving into much bigger 10x10 setups, so the challenge grows with the board itself. As the grid expands, you get more combinations to rule out, which makes each placement matter a lot more. It also lines up nicely with educational play, since every round pushes your mental arithmetic.
Toggle tools that keep your picks organized
Instead of locking yourself into random guesses, you can toggle numbers on and off while you test different sums. That makes it easier to compare options on desktop or touch screens, and the game’s mobile support helps when you want to work through a board on the go.
If you enjoy clue-driven number puzzles, Sum Master gives you a clean grid, exact targets, and plenty of ways to check your logic before you commit.