DWG-102.3.04
Killer Sudoku #4 · Hard
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About this puzzle
Sheet #4 divides the grid into 25 cages averaging 3.2 cells. 5 cages have only one possible set of digits — the natural place to begin.
The largest cage covers 6 cells and adds up to 38; it starts at row 4, 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 38 in 6 cells starting at row 4, column 6 can only be 3 + 5 + 6 + 7 + 8 + 9.
The 10 in 4 cells starting at row 1, column 1 can only be 1 + 2 + 3 + 4.
Expect to lock digits between cages and lines and to use pairs. Write notes in the big cages early.