It�s the new shape of sudoku?and it�s no square! These fun and extra-challenging puzzles come in triangles, all color-coded to indicate special spaces where numbers can�t repeat and where new rules of play come into action. Each large triangle includes nine smaller ones (just as the square grids feature interior boxes); as usual, you must place numbers one to nine in each triangle. But then solvers face some unique (and exciting!) requirements for filling in the edges, for completing the ?three legs� of the inner shaded triangle, and for handling the hexagon shapes. Fans of traditional sudoku will find it irresistible!

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