calcudoku(mathdoku) - more than 1,00,00,00,00,00,000+ calcudoku or mathdoku puzzles a perfect calcudoku or mathdoku is here for all sudoku lovers with amazing 4 different difficulty options i.e. 'intermediate','challenging','tough' and 'expert'. options 1 to 4 varies from very simple, easy to hard and toughest game play. the game is similar to sudoku but uses a little math. thick lines indicate 'cages'. each cage has an arithmetic puzzle which must be solved by the digits in the cage. e.g. '8+' means all digits in that cage add to 8. the order in which digits are used is irrelevant features- 1) 4 difficulty options with 1,00,00,00,00,00,000+ calcudoku or mathdoku puzzles 2) different grid sizes - 5x5, 6x6, 7x7,8x8,9x9 3) pencil marks with auto fill / erase 4) undo and redo 5) intelligent hints 6) selected digit highlighting 7) incorrect entry highlighting so get ready to be puzzled...
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