Observer killer sudoku, Life and style

Normal Sudoku rules apply, except the numbers in the cells contained within grey lines add up to the figures in the corner. No number can be repeated within each shape formed by grey lines

Observer killer sudoku, Life and style

Observer killer sudoku, Life and style

Observer killer sudoku, Life and style

Longboat Observer 5.25.23 by The Observer Group Inc. - Issuu

Observer killer sudoku, Life and style

09 January 10, 2009 - ObserverXtra

Observer killer sudoku, Life and style

Observer killer sudoku, Life and style

12 March 3, 2012 - ObserverXtra