Logic Masters Deutschland e.V.

Props to mnasti2 who I believe came up first with this kind of puzzle.



Play on SudokuPad

The bottom of the sudoku grid has fallen down and so did all the clues. Put the clues back in the right position by copying them in the grid in a position straight above them. The vertical order of clues within a column should remain the same.
Normal 9x9 sudoku rules apply.
Digits in cells orthogonally connected to a red circle cell add up to the digit in the red circle.
Digits in cells orthogonally connected to a grey circle cell are either consecutive to the digit in the grey circle, or are double or half of it.
(Remove any digits you may have entered below the grid for the solution check to work.)