You are given a grid containing some numbers. The goal is to mark some of the cells so that the total marked cells in the row and column of each cell (excluding the cell itself) is equal to the number written in the cell.
In the example above, after selecting the top left cell the grid would change to this:
The game contains at least 1000 puzzle at the moment, and they vary both in size (from 3x3 to 7x7) and type, for example some numbers may be missing:
The rules are easy to understand and there are some good logic deductions that can be made. It's possible to lock cells in their current state, which is an essential help in the harder puzzles.
I don't think it's guaranteed that all the puzzles can be solved without guessing. I surely wasn't able to.
The user interface is overcomplicated and feels awkward, but it's ok during the normal gameplay.
The game is free (with ad banners), the puzzles are good, so definitely give it a try.
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