DWG-102.3.07
Killer Sudoku #7 · Hard
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About this puzzle
Sheet #7 divides the grid into 23 cages averaging 3.5 cells. 3 cages have only one possible set of digits — the natural place to begin.
The largest cage covers 6 cells and adds up to 35; it starts at row 6, column 6.
The most open cage, 19 in 4 cells, still allows 11 different sets of digits — leave it for later.
Where to start
The 7 in 3 cells starting at row 8, column 3 can only be 1 + 2 + 4.
The 17 in 2 cells starting at row 3, column 6 can only be 8 + 9.
Expect to lock digits between cages and lines and to use pairs. Write notes in the big cages early.