Gap Puzzle

Gap Puzzles: Click the squares to cycle through icons. Shade in two squares in every row and column. Shaded squares cannot touch, not even at corners. The numbers on the sides of the grid indicate the number of white squares between the shaded squares in that row or column. The red and green circles indicate if the row or column satisfies these rules and shaded squares turn red if they touch each other. The cross icons are treated the same as blank squares and are only there to help you. A solved puzzle is shown below. Each puzzle below has a unique solution. All puzzles were designed by Erich Friedman.