When I'm 64

**Sudoku, Skyscrapers, Quadruples** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Skyscrapers: Each cell represents a ‘skyscraper’ whose height is the digit in that cell. Taller skyscrapers obscure the view of smaller ones. Clues outside the grid tell how many skyscrapers are visible looking across the row or column from the direction of the clue. - Quadruples: Digits in a Quadruple circle must be placed at least once in the four cells touching that circle. For more of our puzzles, please visit https://missingdeck.net