Try to solve each of the puzzles by looking for numerical clues within each of the picture puzzles and placing the correct number in each open spot. By looking at the numbers on the left you'll get clues about each of the horizontal rows and vice versa for the vertical rows. You can find more in depth information about how to play the game within the game tutorial that is located at the menu of the game. Game Instructions:
You can hold the X Key and Right Click your Mouse to put down a cross, this will help you to mark the tiles you know aren't colored. If you click a wrong tile, a cross will appear. You can make 5 mistakes in each of the puzzles.