Bookshelves
by Will Power Open on SudokuPad
- Kropki dots
- Whisper lines
- Odd and even cells
The brief
Normal Sudoku rules apply. DUTCH WHISPERS- Numbers on red lines are at least 4 apart from their neighbors on the line. KROPKI PAIRS- Numbers with a black dot between them are in a ratio of 2:1. Not all possible dots are given. EVEN- Numbers in cells with a gray square are even.
