600 Sudoku puzzles with BONUS cells. Each Sudoku puzzle in this book can be solved using only the standard Sudoku rules: each row, column, and box must contain all the numbers 1-9. There are four puzzles on each page. The puzzles have as few clues as possible but you can get additional clues by solving the BONUS cells - cells containing one of the letters B, O, N, U, or S. Each BONUS letter can be replaced with a number. The number that goes with a letter will be the same in all 4 puzzles on the page. Think of BONUS cells ...
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600 Sudoku puzzles with BONUS cells. Each Sudoku puzzle in this book can be solved using only the standard Sudoku rules: each row, column, and box must contain all the numbers 1-9. There are four puzzles on each page. The puzzles have as few clues as possible but you can get additional clues by solving the BONUS cells - cells containing one of the letters B, O, N, U, or S. Each BONUS letter can be replaced with a number. The number that goes with a letter will be the same in all 4 puzzles on the page. Think of BONUS cells as optional hints that can help you should you get stuck.
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