Memorial (Decoration) Day
by Will Power Open on SudokuPad
- Killer cages
- Whisper lines
- Entropic lines
- Renban lines
The brief
Normal Sudoku rules apply. Except for the given numbers, cells which are a chess king's move away cannot contain the same number. GERMAN WHISPERS- Numbers on green lines are at least 5 apart from their neighbors on the line. DUTCH WHISPERS- Numbers on red lines are at least 4 apart from their neighbors on the line. RENBAN- Numbers on blue AND purple lines are each a set of non-repeating, consecutive numbers, in any order. ENTROPY- Yellow AND orange lines each have one low (1-3), one medium (4-6) and one high (7-9) number. White lines have no effect on the puzzle. PARTIAL ROTATIONAL SYMMETRY- WITHIN THE YELLOW SHADED AREA (the entire block of 27 cells), numbers 180 degrees apart sum to 10. (Example: R7C2 and R9C8 sum to 10). Also, WITHIN THE PINK SHADED AREA (the set of 24 cells), numbers 180 degrees apart sum to 10.
The brief doesn't mention the cages. We read them as standard killer cages (a cage's digits don't repeat and add up to its total), which the setter's solution confirms.
