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Sudoku’s Swordfish pattern uses 6 cells to eliminate numbers—what’s the trickiest Swordfish you applied (hidden in 9x9 grids, or multiple patterns), and how did you confirm the 3 rows/columns? Did you ever use Swordfish to solve a “hard” difficulty Sudoku, and what’s the most advanced logic moment you had?
Posted : September 21, 2025 6:53 pm