Bonus: Little Killer Sudoku by Thomas Snyder

Little Killer by Thomas Snyder

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Theme: Digit Series and Clue Symmetry

Author/Opus: This is the 227th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules. Additionally, some numbered arrows outside the grid indicate the sum of the digits along that diagonal path. (Digits can repeat along a diagonal sum.)

Note: No answer strings or timing here (honor system for when you solve it). I’m simply posting some “examples” I wrote as the Sudoku Grand Prix coordinator. Apparently some common variants aren’t common enough….

Bonus: Double Doku by Thomas Snyder

Double Doku by Thomas Snyder

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Theme: Diagonals

Author/Opus: This is the 226th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules. Additionally, there are two overlapping classic sudoku grids, and both must have valid solutions.

Note: No answer strings or timing here (honor system for when you solve it). I’m simply posting some “examples” I wrote as the Sudoku Grand Prix coordinator. Apparently some common variants aren’t common enough….

Bonus: Neighbor Sums Sudoku by Thomas Snyder

Neighbor Sums Sudoku by Thomas Snyder

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Theme: Digit Series and Clue Symmetry

Author/Opus: This is the 225th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules. Additionally, some edges are marked with the sums of the digits in the adjacent cells.

Note: No answer strings or timing here (honor system for when you solve it). I’m simply posting some “examples” I wrote as the Sudoku Grand Prix coordinator. Apparently some common variants aren’t common enough….

Update

People looking for new puzzles from me should check out next weekend’s Puzzle Grand Prix. Many USPC contributors (and therefore many GMPuzzles contributors) have written puzzles. I’ve made LITS and Shape Minesweeper sections; Serkan Yürekli has made some Kakuro; Roger Barkan (author of the Colossal Cave Collection) has made some Caves.

There are still no solvers of the Hidden Contest.

I continue working through my transition; while I’ve been at my new job for a month, I only just found my permanent residence in CA for this year and will move in next weekend. Still a lot to do before I see the time returning to do much with GMPuzzles.

Update

We’ve extended the hidden contest for at least two more weeks and added another hint for it.

Besides this hidden contest, there will likely be no new puzzles on the site until May, and a return to a regular schedule will probably still be some time after that. I’ll be using some of this time to close out lots of things that have been pushed back because of the demands of meeting a weekly posting schedule, including the print edition of The Art of Puzzles, the print and electronic editions of The Art of Puzzles 2: Double Trouble, as well as the #1 Fans puzzle promised to our patrons long ago. Thanks again for your patience.

Arrow/Thermo-Sudoku by Prasanna Seshadri

Arrow Thermo-Sudoku by Prasanna Seshadri

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Theme: H (patron puzzle created for Paul Hlebowitsh)

Author/Opus: This is the 80th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Arrow Sudoku rules.

Answer String: Enter the 4th row from left to right, followed by a comma, followed by the 9th row from left to right.

Time Standards (highlight to view): Grandmaster = 5:15, Master = 7:45, Expert = 15:30

Note: Follow this link for more Arrow Sudoku. Follow this link for more Thermo-Sudoku puzzles.

Site News

I wanted to share some life/site news with you all. Tomorrow I’m starting a new job at Google with their Life Sciences team. I just drove back to California for this unique opportunity, but I am quite far from being settled in.

As a result of this life change, I’m going to be taking an indefinite break from posting regular puzzles here. There may be a few random puzzles posted during this gap, but this past week was the last full week for awhile.

In the interim, there is still an open contest to solve (with a new hint).

And for most of you, there are still hundreds of past puzzles to look through. I’ve made a new archive page where you can readily download everything we’ve posted.

— Dr. S.