DWG-102.2.01
Killer Sudoku #1 · Medium
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About this puzzle
Sheet #1 divides the grid into 27 cages averaging 3 cells. 7 cages have only one possible set of digits — the natural place to begin.
The largest cage covers 5 cells and adds up to 26; it starts at row 1, column 9.
Where to start
The 16 in 5 cells starting at row 5, column 1 can only be 1 + 2 + 3 + 4 + 6.
The 23 in 3 cells starting at row 1, column 6 can only be 6 + 8 + 9.
At least once you will need the rule of 45: total a row, column or box and subtract the cages that lie inside it.