Penguin Sudoku

Give your mind a New Year workout with 365 brand new Sudoku puzzles to take you through 2015. Ranging from easy to extra-challenging to extreme evil, there's a game for every day, with instructions and solutions. So turbocharge your brain power, sharpen your logic and knuckle down to those 9x9s. It' [...]
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Give your mind a New Year workout with 365 brand new Sudoku puzzles to take you through 2015. Ranging from easy to extra-challenging to extreme evil, there's a game for every day, with instructions and solutions. So turbocharge your brain power, sharpen your logic and knuckle down to those 9x9s. It's the most fun you can have sitting down. Plus: dare you attempt the latest lethal Japanese puzzles?