Infinite Sudoku Extreme
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If you think you’ve mastered Sudoku think again... Prepare to blow your mind with this unlimited collection of super-difficult Sudoku puzzles. Begin with classic 9 x 9 hard puzzles as you warm yourself up for the mind-bending Sudoku 16 x 16 or the aptly named Killer Sudoku! Do you have what it takes to become the ultimate Sudoku champion? Killer Sudoku: - Are you ready to take on the challenge of Killer Sudoku? Killer puzzles are a cross between Sudoku and Kakuro. The basic Sudoku rules apply but there’s a twist! You also have to make sure that all the numbers within linked boxes add up to the number clue displayed in the top left corner. Features: - An unlimited supply of tear-your-hair-out Sudoku Puzzles. - Play classic 9 x 9 Hard and Super-Difficult puzzles. - Attempt Sudoku 12 x 12, Sudoku 16 x 16 or Killer Sudoku. - Solve any Sudoku puzzles from any source* - Print any puzzle - with or without the solution. - Email puzzles to friends and family+ - Insert pencil marks manually or automatically. - Refer to the tutorial and handy hints and tips. - Highlight wrongly entered numbers. - Beat the clock and record your high scores. - Quickly undo multiple mistakes. - Save partially completed puzzles - And many more features!