10/2/2023 0 Comments Heb vaccine hours![]() The swordfish technique is similar to X-Wing, but it corresponds to three times three net instead of two times two net. The swordfish Sudoku trick is a hidden strategy for solving the puzzle, which states that three columns can each have two or three possible candidates for the given number as long as they fall on three common rows(or column & row vice-versa). Therefore, you can dismiss all the red marked cells containing a 3. ![]() The number candidate 3 can only be in one of the star-marked cells because there are only two candidates per sub-grid/block. To understand this technique, here is an example: If a number has only two candidates for two cells in two different sub-grids and both are in the same row or column, you can remove that number as a candidate in all other rows or columns. So it must be at one of the three green-marked cells.Īt the same time, you can dismiss the number 8 as a possible candidate from all the red-marked cells. ![]() This Sudoku-solving strategy helps remove potential candidates for cells, i.e., it won’t help you to pencil in any new numbers, but it will help to nail a number down within a specific row or column.įor example, from the image below, you can understand that the number 8 cannot be on the same row as the 8 displayed. This concludes that both paths lead to the same result, so you can dismiss 7 from the purple-marked cells.
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