Zero Box Logic Numbers

Will you be able to create the Zero Box? Check out this new exciting number puzzle game.InstructionsYour goal in this slightly mathematical number puzzle game is to transform a number table to contain only zeros, which as it turns out might not be all that easy! You can swipe right over a row to add 1 to it and swipe left to subtract 1 from it. By swiping up and down you can do the same thing with columns. Finally you are also allowed to switch any two numbers on the board by tapping the first number and then the second one. This puzzle game also offers a difficult mode, which has following additional rule: A number placed on a dark tile cannot be moved!Game features+ Different number board sizes from 3x3 up to 8x8 tiles!+ Two puzzle modes - normal and hard.+ Track your play time and number of steps.+ Game saved automatically. You never lose your progress!+ Night and day color themes.+ Smooth retro-like game look&feel.+ In-game tutorial to learn game principles quickly.+ Exclusive for Android 2.3+PermissionsOnly Internet and network permissions required due to Ad Banner in the main menu.The game doesn't need any other access to your storage, doesn't collect any information about you or your location and is all in all totally safe.Looking forward for your feedback. Enjoy the puzzle!