For those who want to test their intelligence and logical thinking, today we present a new online game of a puzzle called Sum Challenge Number Grid. Before you on the screen will be visible a playing field inside a broken into cells. All cells will be filled with various numbers. Outside the game field opposite each row and column, you will also see the number. You will need everything carefully, having examined, highlight the numbers inside the game field, so that in total they give numbers that are in front of a series or column. Having completed this condition in the game Sum Challenge Number Grid, get points and go to the next level of the game.
