Star Puzzle Book 400+ Sudoku. Hard and Very Hard Levels.

Star book of sudoku puzzles. Consists of six large triangles. Numbers from 1 to 9 should be placed in the triangular cells of each large triangle. Each line (of any length, even broken) contains non-repeating numbers. The row on the outer edge of the grid includes a cell located at the nearest sharp ends of the figure. 200 hard levels Star sudoku puzzles. 200 very hard levels Star sudoku puzzles. + 250 sudokus extreme level that can be downloaded and printed. + 250 maze puzzles that can be downloaded and printed. Unique puzzles. These sudokus tested and rechecked. Only 1 verified solution. All answers are at the end of the book. Exclusive puzzles. A great book for free time and studying the mind. I hope you enjoy the book. Best regards, Basford Holmes