Kill Me Twice - Stage 1
- Killer cages
- Kropki dots
- Whisper lines
- Renban lines
The brief
This puzzle must be solved in two stages.
Stage 1: 3x3s Place the digits from 1 to 9 in the grid so that they do not repeat in any row or column. Digits can (and will) repeat in each 3x3 box. Each box will use exactly 3 of the digits from 1 to 9.
Stage 2: Normal Sudoku Delete all digits except those in the unclued cells of Row 1 and Row 9 which are givens for the remaining solve. Normal Sudoku rules apply, i.e. each row, column, and 3x3 box has to contain the digits from 1 to 9 once each. --- The following rules hold true in both stages:
- Killer cages: Digits in a cage sum to the clue in the top left, if given. Digits in a cage without a given clue must sum to the same total in both stages of the solve.
- German whispers: Adjacent digits on a green line must have a difference of at least 5.
- Renban: Each purple line must contain a set of consecutive non-repeating digits in any order.
- Kropki: Digits joined by a black dot have a 1:2 ratio. Digits joined by a white dot are consecutive. (Not all dots are given.)