dxSudoku #11 Hidden Triple and How To Find Them - YouTube
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SudokuWiki.org - Hidden Candidates
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SudokuWiki.org - Hidden Candidates
SudokuWiki.org - Hidden Candidates
Solving Techniques 3-Hidden Pairs/Triples/Quads | Sudoku Kyo free sudoku game
Hidden triples - Sudoku technique
Please suggest strategy (thinking I'm missing hidden triples)…and help with understanding swordfish…I don't get how to determine which are targets and which get removed : r/sudoku
Obvious triples - Sudoku technique
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Naked Triple , How to solve sudoku puzzles - Solving sudoku strategy
Sudoku 101: Hidden Triples - YouTube
Are 1, 9 and 3 hidden triples despite 5 being available in the top cell and those three numbers being available in other cells? : r/sudoku