Lots of TRIPLES! Useful Sudoku Strategy - Great for Beginners to Know
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Solve a HARD Level Sudoku the EASY way! X wing, W wing, XY wing, and even a BUG +1
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What is so UNIQUE about the Unique Rectangle?
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3 Sudoku Tips Every Solver Needs To Know
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Remote Pairs Sudoku Chain Strategy
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Lookout for Hidden Singles, Pairs, Triples, and Quadruples in Sudoku
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The Sudoku Trick All Expert Solvers Know
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Sudoku 2-String Kite Explained with EXAMPLES
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