According to comments from Sudoku fans who have posted ratings on books they have purchased, there are certain attributes of an ideal puzzle book they would like to see incorporated into a single book. They are as follows: 1. Only one large puzzle per page.
2. No puzzle on the back of another. Solving one damages the other.
3. No packing so many solutions on a page that they are hard to read.
4. All puzzles on the same side of the...
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