

Also, some arrow shapes are in the grid the sum of the digits along the path of each arrow must equal the digit in the circled cell (digits can repeat on an arrow). Posted in Killer Sudoku, Puzzle by Prasanna Seshadri, 11/7/21 9:05 AMĪuthor/Opus: This is the 2nd puzzle from guest contributor Michael Rios.
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Solution: PDF a solution video is also available here. Time Standards (highlight to view): Grandmaster = 20:00, Master = 30:00, Expert = 1:00:00 This tenth Sunday Stumper is a challenging Killer Sudoku by Prasanna Seshadri.Īuthor/Opus: This is the 220th puzzle from our contributing puzzlemaster Prasanna Seshadri. These will be quite tough puzzles, but with a logical path to be found (and solution videos to help). This year, we started posting some extra difficult Sunday Stumpers, about once a month. Posted in Thermo-Sudoku, Killer Sudoku, Puzzle, Variation by Grandmaster Puzzles, 11/25/22 9:00 AM More Thermo-Sudoku puzzles can be found in The Art of Sudoku 2 and Masterpiece Sudoku Mix 2.

If you are new to this puzzle type, here are our easiest Thermo-Sudoku to get started on. Follow this link for more Thermo-Sudoku puzzles. More Killer Sudoku puzzles can be found in Killer Sudoku by Serkan Yürekli. Note: Follow this link for more Killer Sudoku and this link for classic Sudoku. Time Standards (highlight to view): Grandmaster = 7:30, Master = 11:15, Expert = 22:30 Some thermometer shapes are in the grid numbers must be strictly increasing from the round bulb to the flat end. Also, the sum of the digits in each cage must equal the value given in the upper-left corner of that cage. Specifically, insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region. Rules: Standard Killer Sudoku rules and Thermo-Sudoku rules. Posted in Killer Sudoku, Puzzle by drsudoku, 04/1/23 9:00 AMĪuthor/Opus: This is the 4th puzzle from guest contributor Michael Rios. Or solve online (using our beta test of Penpa-Edit tools)Īuthor/Opus: This is the 442nd puzzle from Thomas Snyder, aka Dr.

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