Color sudoku for kids not ready for numbers: color each empty square so every row, column and box has each color once. The 4x4 puzzles use red, blue, yellow and green; the 6x6 add orange and purple. The shape set uses circles, squares, triangles, stars, hearts and diamonds. Answer keys included, plus a color version of the 4x4 set.

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Free for home, classroom and work use. License information