Use a hidden singles solver optimized for multicore processors to solve a Sudoku with a box dimension of 70 (approximately 11.5M blanks). Resolving one blank per second would take 134 days!
Puzzle Approved Text file of Sudoku puzzle for 4900x4900 grid.
Puzzle Solution Approved Step by step solution in Text file of Sudoku puzzle for 4900x4900 grid.
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