These puzzles are not dressed to the nines - that's because not one of these Sudoku puzzles contains the number nine as a given, so solvers must do some mining to discover where they belong. Pixel-y, nerdy, creative and challenging, 'Ninecraft Sudoku' features nearly 190 puzzles that get harder as you go along and includes some grids with givens that are in shapes seen in mining games.
"synopsis" may belong to another edition of this title.
Philip Riley is a software developer and the author of numerous computer programs that analyze variants of Sudoku puzzles. Laura Taalman is a professor of mathematics at James Madison University, Harrisonburg, Virginia, and spent a year as mathematician-in-residence at New York's Museum of Mathematics.
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