Players interact with a grid filled with cells, some already containing numbers and others blank. The primary objective is to fill in all the empty cells so that the sum of numbers in each row, column, and colored section equals the target displayed.
Every move counts, so you must use deduction and logic to avoid conflicts with existing numbers.
Puzzles increase in complexity as you progress, introducing larger grids, more colored regions, and trickier sum targets. Later levels may require advanced logic, since a number can overlap multiple constraints. The game’s difficulty is part of its appeal, testing both your arithmetic and problem-solving abilities.
Sum Master draws inspiration from Sudoku and Kakuro, but adds unique colored regions and a feline aesthetic. While Sudoku relies on filling numbers without repetition, and Kakuro uses crossword-like sum clues, Sum Master fuses these ideas with its own rules.
The result is a fresh challenge for puzzle fans seeking something familiar yet distinct.
Sum Master runs directly in your browser with no download needed. Play free on any device, even at school or work. Tackle tricky math puzzles anytime you want, unblocked and hassle-free.
Your goal is to fill every empty cell in the grid so that the sum of each row, column, and colored region matches the target number provided. Use the mouse to click on a cell and input a number, or simply tap on mobile devices.
The interface lets you change or erase entries anytime. Start by identifying rows or regions with limited options to narrow down your choices. As the puzzles progress, you'll need to balance multiple constraints and think several moves ahead.
Some puzzles have colored zones that overlap with rows and columns, adding an extra layer of strategy. Pay close attention to these overlapping areas to avoid mistakes.
Start Small - Focus on regions or rows with only one empty cell to deduce the correct value. Double-Check Sums - Always verify that your current entries add up to the targets before moving on.
Overlap Awareness - Watch for cells that belong to both a row and a colored region; these can be key to solving tricky puzzles. Use Pencil Marks - If you're unsure, try possible numbers in a cell and narrow it down as you eliminate options.
Undo Often - Don't hesitate to erase mistakes; experimentation is part of solving each puzzle.
