Triangular Sudoku: 150 TriDoku puzzles

Refresh your passion for logic with the first-ever collection of TriDoku. If you are tired of standard 3x3 grids, this book introduces a revolutionary triangular architecture that will sharpen your existing skills and force you to learn entirely new solving techniques. Each puzzle is played on a massive triangular grid where nonets are triangles rather than squares, creating a sophisticated mental workout.