This book contains 100 sudoku samurai puzzle in Hard difficulty.
Samurai sudoku puzzles contain five overlapping sudoku grids. The regular sudoku rules apply to every 9 x 9 grid. Put numbers from 1 to 9 in every empty cell. Each row, each column, and each 3 x 3 box should consist of one of each digit. The puzzles on Samurai Sudoku have one unique solution that you can get using logic, absolutely no guessing needed.
Sudoku puzzles are a proven method for enhancing logic skills. As a logic puzzle, Sudoku is also a great brain game. If you play Sudoku everyday, you'll soon begin to see improvements within your concentration and overall brain power. You could reduce your probabilities of Dementia or Alzheimer's simply by solving Sudoku puzzles.
By using this selection of sudoku puzzle books you would experience enhanced brain capabilities for example focus, logical thinking and memory.
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