LogicMind Sudoku Medium 9×9 Grid Puzzle Book: 320 Puzzles with Answer Key, 8.5×11 Inch Book

Ready to challenge yourself to sudoku? Sudoku has been around since 1783 when Swiss mathematician Leonhard Euler devised it. This sudoku puzzles book is part of our LogicMind series. Check out the series to find a variety of sudoku puzzle books including hard sudoku, easy sudoku, sodoku medium. If you love solving sudoku challenge yourself to work through the series. Our LogicMind series also includes kakuro puzzle books, nurikabe puzzles, mine finder and our maze puzzle books

• Level: Sudoku Medium
• Type: Sudoku 9×9
• Size Book: 8.5”x11”
• Number of Puzzles: 320

Rules:

• Numbers should not be repeated more than once on each row.
• Numbers should not repeat more than once on each column.
• Numbers should not appear more than once on each sub-square.
• The Numbers 1 to 9 are only allowed to be placed once on every row, column and sub-square.