You only need erasable colored pencils to have fun with these Sudoku puzzles. They operate the same way as numbered Sudoku puzzles except there are spaces filled with colors and shapes instead of numbers. These are great for your dyslexic students who have a difficult time with numbers. The shape puzzles add an additional degree of difficulty in that you have both colors and shapes that need to be placed in the appropriate squares. An answer key at the end of the packet shows your students if they got their Sudoku correct. There are 10 color Sudoku puzzle, 8 that use shapes, and 2 that have punctuation marks for a total of 20 puzzles. They are on a 9x9 grid. This is great for students who are done with their assigned work early!