![]() ![]() Note that the hardest puzzles require you to. When you have mastered all of these techniques you will be able to solve any puzzle. You will learn many techniques that you can use to solve difficult puzzles. I leave the rest of the solution to the readers.Ī second sudoku article can be found here. As your solving skills improve you will find that easier puzzles aren’t as interesting anymore and that you can move on to harder ones. The rest of the puzzle can be easily solved by basic techniques. You are currently armed with enough knowledge to solve 95 or more of the Sudoku puzzles currently published in newspapers, books, and magazines. After all the redundant candidates in the empty cells are removed by the technique of "naked pair" new single candidates begin to appear in the puzzle. This book was written by Carol Vorderman, the leading Sudoku expert in the UK, who offers 200 Sudoku puzzles with clear instructions and puzzle-solving secrets that will help you spot patterns, uncover opportunities, and solve Sudoku puzzles faster than ever before. This means the redundant option 3 can be removed from cells (1,7) and (2,7) forming a naked pair with the candidate numbers 4 and 8.Ī puzzle consisting of only single candidates and naked pairs should be classified under the easy category. Master Sudoku: Step-by-Step Instructions for Players at All Levels. As a result, the cells (9,7) and (8,8) form a new naked pair with the candidate numbers 5 and 6.įinally, the three cells (1,8), (2,8) and (3,9) in box 3 form a naked triplet with the candidate numbers 1, 3 and 9. ![]() Similarly, the redundant options 3 and 9 can be removed from cell (8,8). ![]() Hence the redundant options 2 and 3 can be removed from cell (9,7). The three cells (7,7), (7,9) and (9,9) in box 9 form another naked triplet with the candidate numbers 2, 3 and 9. This means that the entire puzzle should be able to be solved without guessing that means you can use deductive reasoning, based solely on which numbers are already in place within each row, column or square, to figure. This means that the three cells (6,2), (6,6) and (6,8) in row 6 form a naked triplet with the candidate numbers 5, 7 and 8. Sudoku involves filling empty spaces with the number 1-9, without repeating any numbers within each row, column or square. See the paragraph above Figure 4 if you cannot see why the 2 in (6,2) cannot be used. In row 6, the only position possible for a 2 is (6, 4). ![]()
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