Sudoku Quilts

The grids used in today's addictive Sudoku number puzzles are a perfect match for making quilts. But instead of numbers, you can place colors and fabrics in an array of brain-teasing designs!
 - Choose from four winning patterns with a game-like goal -- each row and column of blocks, and each three-by-three square, should contain a different fabric, color, or motif
 - Base designs on nine color families, nine block styles, nine block centers, or nine fabric motifs
 - Mix and match different sashing treatments for one-of-a-kind designs -- just like Sudoku, the possibilities are mind-boggling