NineFind

Welcome to NineFind, where most numbers are wrong and it's your job to find which nine are correct! Unlike most number puzzles that start with empty white squares, NineFind starts with a grid of numbers filled in. To find the nine correct numbers, you'll use logic and simple addition to remove numbers that must be wrong. With intuitive controls and increasingly difficult puzzles, work your way through 5 levels of difficulty and endless challenges.
INSTRUCTIONS
Select (by circling) the digits from 1 to 9 in the grid once each so that each row and column adds up to 9 or less. A completed puzzle will have each number 1-9 circled once, with no other numbers remaining.

• Tap once to remove a number.
• Tap twice to circle a number.

Only nine squares will remain; not every row and column needs to have a number in it, and some rows and columns will add up to less to 9.

You never have to guess. Logic will always be enough to solve.