The object of this game is to end up with a board filled with only zero’s. When you tap on a field the number in this field and all the neighbors (horizontal, vertical and diagonal) are decreased by one, hence the name minusOne.The game can be played on boards of sizes 3×3, 4×4 and 5×5 and you can choose from five levels of difficulty.Don’t be fooled by the simplicity of the rules, you’ll soon discover that larger boards and higher levels are real brainteasers.This game contains thousands of different puzzles, see if you can solve more puzzles than your friends.