Killer Sudoku by Grant Fikes
or solve online (using our beta test of Penpa-Edit tools)
Theme: Clue Symmetry and Logic
Author/Opus: This is the 231st puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Sudoku rules. Also, the sum of the digits in each cage must equal the value given in the upper-left corner of that cage. Digits cannot repeat inside a cage.
Answer String: Enter the 8th row from left to right, followed by a comma, followed by the 7th column from top to bottom.
Time Standards (highlight to view): Grandmaster = 3:45, Master = 5:30, Expert = 11:00
Solution: PDF
Note: Follow this link for more Killer Sudoku and this link for classic Sudoku. More Killer Sudoku puzzles can be found in Killer Sudoku by Serkan Yürekli.
5:11
What I particularly liked about this one was how little actual information was provided compared to the average killer sudoku.