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Golden Nugget |
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000000039000010005003005800008009006070020000100400000009008050020000600400700000
Golden Nugget is accepted by many sources as the world's hardest sudoku puzzle. It was created by Tarek (user name on the Sudoku Forums by Pappocom Sudoku) in January of 2007, and requires 5 passes of Sudoku Snake's hardest and most time consuming solving technique, dynamic unit nested forcing chains II, to solve. Do not attempt to analyze it using Sudoku Snake unless you are ready for at least half an hour of processing time.
Printable Version
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