Sudoku Strategy: Using number sets to solve difficult puzzles mentally
Product Description
Sudoku Strategy: Using number sets to solve difficult puzzles mentally
Tools to solve difficult Sudoku puzzles mentally without pen & paper.
Most Sudoku strategies rely upon deductive reasoning which requires keeping track of a large number of possible solutions for each open cell. These strategies enable even inexperienced players to solve difficult puzzles using only a few numbers (usually two, three or four) at a time. It includes step-by-step solutions to several puzzles.
Technical Specifications
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