Sum sudoku cages offer hints on this last grid before the holiday weekend!
Agreed. Clearly a typo. As it stands, that region's values sum to 16 rather than 21.
December 23, 2011 (1:58 am)
Same for me.
December 23, 2011 (2:01 am)
Sorry about that. My poor handwriting made that happen. The 4 should indeed be a 9. Uploading a fix now.
December 23, 2011 (4:39 am)
Should the number between cells 3 and 4 on column 3 be a 9? It seems the grid as is contradicts directly with grid 7.
December 23, 2011 (12:58 am)