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The ‘Pointing Pairs’ method is effective when the same candidate number appears twice within a single row or column of a 3×3 block. Basically, this scenario indicates that the number must occupy one of those two cells, allowing you to…

The ‘Pointing Triples’ technique is similar to ‘Pointing Pairs’ but comes into play when a candidate number is repeated in three cells within the same row or column of a particular 3×3 block. This occurrence indicates that the number must…

The ‘X-Wing’ technique is an advanced Sudoku technique that focuses on two parallel rows or columns and does not involve 3×3 blocks. As shown in the first image, consider two parallel rows, each with two cells containing a candidate number 4.…

The ‘Y-Wing’ technique is an advanced technique for solving Sudoku puzzles, which is suitable for those who enjoy solving more challenging levels. Similar to the ‘X-Wing’ method, the ‘Y-Wing’ approach involves identifying specific cells, but it uses three key cells…

The ‘Swordfish’ technique is designed for solving difficult Sudoku puzzles with many blank cells. This advanced technique helps eliminate potential candidate numbers and narrows down your choices. ‘Swordfish’ is similar to the ‘X-Wing’ technique but involves three rows and three…