Bipolar Quads 3
More from The Bard
- Anti-king
- Quadruples
- Lines of set digits
The brief
Normal Sudoku rules apply. Place the digits 1-9 in each row, column and box without repetition.
Quadruples: Digits in the white circle must appear in at least one of the four surrounding cells.
Anti-Quadruples: Digits in the light red circle cannot appear in one of the four surrounding cells.
Bipolar Quadruples: In the yellow circle half of the digits cannot appear and the other half must appear in any of the four surrounding cells. (i.e. half are liars and half are true.)
Anti-King: Cells that are a King's move apart (in chess) may not contain the same digit.