triples

Submitted By: kevin from sydney

i have trouble deciding what is a hidden triple and what is not a hidden triple.
2 Comments
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A hidden triple occurs when 3 cells in a unit (a row, column or box) contain between them 3 digits which appear nowhere else in the unit. If there are other candidate digits in these 3 cells, then this is a hidden triple. If there are no other candidates then this is a naked triple. I have an More...
27/Sep/11 8:12 AM
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I use this technique in my brain to solve the puzzle in my mind. It helps solve the hard and tough puzzles to know what numbers are not available to use.
29/Sep/11 3:55 AM
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