Logic Masters Deutschland e.V.

Carnac the Magnificent is a famous sage from the East. He has been given a sealed envelope. This sealed envelope contains a question. Carnac has the psychic ability to "divine" answers in sealed envelopes WITHOUT even knowing the question in the envelope.

Carnac puts the envelope to his forehead and says the following:

"The answer to this question is: 45 "

Solve the puzzle to find out what question is in the envelope.

• Normal Sudoku rules apply


• Killer Cages:
  • Digits in a cage sum to the given number; No digit can repeat in cages
  
  
• Renban Lines:
  • Pink lines contain a set of consecutive, non-repeating digits in any order
  
  
• Black dots:
  • Cells separated by a black dot indicate that one digit is double the other; not all black dots are given
  
  
• White dots:
  • Cells separated by a white dot indicate that the digits are consecutive; not all white dots are given
  
  
• Quadruples:
  • Digits in a circle must be in the cells where the circle touches
  
  
• XV rule set:
  • An "X" between cells indicates that the two cells must equal 10; not all "X"'s are given
  • A "V" between cells indicates that the two cells must equal 5; not all "V"'s are given

  Play on SudokuPad