Click cells to eliminate them so each row and column sum matches its target (shown on the right/bottom). All targets must match at once to win.
Sumplete is a relatively new logic puzzle (popularized online in 2023) where you eliminate numbers from a grid so each row and column's remaining sum matches a fixed target. Unlike Sudoku, there's no single "correct" number placement to find in this number puzzle - you deduce which numbers to remove using constraint satisfaction, the same category of logical reasoning used in scheduling problems, resource allocation, and certain areas of operations research.
The puzzle rewards a specific kind of reasoning: instead of solving rows and columns independently, the fastest Sumplete solvers look for rows or columns where the target is dramatically lower than the sum of all numbers present, since those constraints are the most restrictive and narrow down your options fastest. If you enjoy Sudoku, Kakuro, or other free number logic puzzles, Sumplete offers a genuinely different elimination-based challenge.
Sudoku is a placement puzzle - you decide which digit goes in each empty cell. Sumplete is an elimination puzzle - every number is already on the board, and you decide which ones to cross out. This inverted logic makes Sumplete a refreshing change for players who've mastered traditional number-placement puzzles and want a new kind of constraint-satisfaction challenge.
Rows/columns where the target is far below the total sum need the most crossing out - solve those first in this Sumplete puzzle.
A cell that's crossed out for its row must also be crossed out for its column - propagate deductions across both.
Solve one line, then re-check adjacent lines - deductions cascade as you fill in more information.
Sudoku and Kakuro fans looking for a fresh logic puzzle, math teachers using elimination puzzles to teach constraint reasoning, and casual puzzle players wanting a free daily brain-training exercise all enjoy Sumplete's unique elimination-based gameplay.
Yes - every generated Sumplete puzzle has a unique solution, though the path to finding it can vary depending on which constraints you tackle first.
They share a constraint-satisfaction spirit, but Sumplete is about elimination (choosing which numbers to remove) rather than placement (choosing which digit goes where).
Yes, completely free with a new puzzle generated every time, no signup or payment needed.
Sumplete is a number-elimination logic puzzle where you cross out numbers in a grid so that the remaining numbers in each row and column sum exactly to given targets.
Both are grid-based logic puzzles, but Sumplete is about elimination via arithmetic sums, while Sudoku is about unique placement of numbers 1-9.
Start with rows or columns where the target sum is very high or very low, since these constrain the possible eliminations the most and narrow the puzzle fastest.
It combines arithmetic with logical deduction, requiring you to test combinations mentally while satisfying multiple row and column constraints simultaneously.