Note that each of the three cells making up the triple don't have to contain all of the three candidates. Identification of a naked triple in a group (row, column or box) requires that three cells and only three cells contain no candidates other than the same three candidates. To help make it clearer I highlighted the key words for identifying the existence of a triple (or triplet if you prefer that terminology). To complement Crazy Girl and 9X9's above responses to you that no triple appears to exist in either of the two groups (row/column) of numbers you submitted I suggest you read my above reply to SudokuKid who likewise sought assistance in understanding this same problem. There is insufficient information in the column alone to assist in the ultimate placement of any of the individual quad candidates.ĭo you know and understand ? 9X9 Posts: 100 Joined: 26 September wrote:".How does the triplet help me solve these two lines?." The column does appear to contain a (so called "naked") quad, four cells containing only combinations of 3, 4, 8 and 9 but there are no other cells in the column containing any of these candidates and therefore there are no related eliminations possible in the column. Then you will see that one or more of the remaining three candidates, the 4s 8s and 9s, appear(s) in more than three cells in total, so that they cannot form a triple. Firstly exclude the 3s from your thinking, because there are four of them and therefore they cannot be part of any triple. The column does not appear to contain a triple. Then you will see that one or more of the remaining three candidates, the 2s 7s and 9s, appear(s) in more than three cells in total, so that they cannot form a triple. To make this clearer, firstly exclude the 3s and 8s from your thinking, because there are four of them in each case and therefore they cannot be part of any triple. The row does not appear to contain a triple (which I think is what you mean by a "triplet"). I imagine your two "lines" are 1) a row and 2) a column.
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