Bet you can't do this sudoku!
Subtitle: 141 really, really, really hard puzzles
By: Anthony Immanuvel
Publisher: Imagine Publishing
Published: 2012
Place of publication: Watertown, MA
Language: eng
Number of pages: 176
ISBN-13: 9781936140756
Subjects: Sudoku; Logic puzzles
Description: "Though these sudoku might seem like others you've tried, don't be fooled: the clues you get are very different. Sometimes you won't get much information to work with. In other cases, the squares are connected by dotted lines and there's only one sum as a hint. A few sudoku are simply bigger; but bigger means harder, with more numbers to figure out. Plus, you'll find shaped puzzles, arrows, and circles in the middle of the grid, and more." -- Back cover