Sudoku Tutorial #62. How to spot an X wing using rows, and then knowing what to do!
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Sudoku. Tutorial 63 The X Wing. Part 2 Using columns.
31:15
Sudoku Tutorial #98 The power of triplets and matching pairs.
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APRENDE a RESOLVER SUDOKUS de mediana complejidad | TUTORIAL | ► ¡LOS TRIPLES o TRÍOS! | #6
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Tutorial 58. Hard sudoku puzzle with lots of techniques.
35:35
Tutorial #56. A difficult puzzle solved from beginning to end. Lots to learn.
45:15
Tutorial #81 Elimination Heaven. A neat trick. You can do it. Locked Little Numbers.
18:44
This Sudoku Actually Teaches The X-Wing Technique!
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