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- 04:19, 19 July 2025 Gurth's Symmetrical Placement (hist) [2,632 bytes] Rooted (talk | contribs) (Created page with "'''Gurth's Symmetrical Placement''' is a technique for solving Sudoku puzzles with 180-degree rotational symmetry in the givens, i.e., the cell '''r[i]c[j]''' cont...")
- 04:17, 19 July 2025 Unavoidable set (hist) [560 bytes] Rooted (talk | contribs) (Created page with "An '''unavoidable set''' is a Deadly Pattern from the point of view of a puzzle maker, or somebody who likes to investigate solution grids. Take the following exa...")
- 04:16, 19 July 2025 Reverse BUG Lite (hist) [777 bytes] Rooted (talk | contribs) (Created page with "The '''Reverse BUG Lite''' is a generalization of the Reverse BUG solving technique. It can be stated as follows: : In solving a sudoku with a Uniqueness Controv...")
- 04:15, 19 July 2025 Reverse BUG (hist) [2,499 bytes] Rooted (talk | contribs) (Created page with "In a 9 by 9 sudoku, a '''Reverse BUG''' is a state of the grid where every solved cell of two particular digits form an unavoidable set of less than 18 cel...")
