This game is a cross between sodoku and nonogram puzzle games.
Mark numbers on the grid that need to be removed in order for the row and column sum to be correct.
Red - marking the number red will exclude it from the sum
Green - marking the number green will keep it
Once the numbers outside the grid become green, you know you have the correct sum.
What's new (v1.3.0)
Added 60 levels with increasing difficulty.
Added background music and sound effects.
Added new settings page to control sound and appearance.