Sudoku Primer 117 - Subscriber request - diabolical puzzle solved
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Sudoku Primer 183 - Using Four Sudoku Tricks to Find One Number
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Sudoku Primer 121 - a Charles Timmerman hard puzzle
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Sudoku Primer 125 "Identical Twins" help us solve this diabolical puzzle
Sudoku Primer 139 - TidBits - Unique Rectangles or Ambiguity Rule
Sudoku Primer 158 - Sudoku Techniques used to solve a diabolical puzzle (answer sheet)
Sudoku Primer 77-Subscriber request solving diabolical puzzle-Sudoku To Go vol 104 (sudoku twins)
Dissecting a diabolical classic sudoku !
Sudoku Primer 124 - double row, column elimination
Sudoku Primer 126 - diabolical puzzle by Andrew Reid
Sudoku Primer 105 - tips for solving an easy puzzle - subscriber request
How To SOLVE Sudoku With HIDDEN QUADS – SHC #113
Secret On How To Solve Sudoku WITH NO MARKS – SHC #131
