Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Repeated Groups

Author/Opus: This is the 307th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 8th column from top to bottom.

Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Best of 2017: Sudoku and “Extra” Puzzles

Here are the two best Sudoku puzzles of 2017, as well as our best “Extra” puzzles. We only had 13 Sudoku posted this past year but will have many more in 2018.

One of our patrons requested this unique combination of Arrow, Shape, and Thermo-Sudoku by Prasanna Seshadri, and it was a fantastic puzzle.

Arrow Thermo-Sudoku by Prasanna Seshadri

The highest-rated Sudoku for 2017 was this challenging Killer Sudoku by Serkan Yürekli.

Killer Sudoku by Serkan Yürekli

In addition to our usual puzzles, we sometimes had larger combinations, hidden puzzles, or puzzle hunt style puzzles. Both of the below “extras” got top marks from our fans.

Prasanna returned for his usual “Birthday Surprise” on March 2nd with this combination of Yajisan-Kazusan and Tapa.

Birthday Surprise by Prasanna Seshadri

Our other best Extra puzzle was “Border Patrol” by Thomas Snyder, a puzzle hunt puzzle without any instructions.

Border Patrol by Thomas Snyder

With that, we’re done with the Best of 2017, and you can find all of the puzzles in this PDF.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Diagonals (Playoff puzzle for the 2017 Arlington Puzzle Festival)

Author/Opus: This is the 287th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 3:00, Master = 5:45, Expert = 11:30

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Big X (Originally for the 2017 Arlington Puzzle Festival)

Author/Opus: This is the 286th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 2:45, Master = 5:00, Expert = 10:00

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: VA is for Sudoku Lovers (Originally for the 2017 Arlington Puzzle Festival)

Author/Opus: This is the 285th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 2:15, Master = 4:00, Expert = 8:00

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Four Loops (Originally for the 2017 Arlington Puzzle Festival)

Author/Opus: This is the 284th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: 12th World Sudoku Championship (Originally for Diwali/WSC Sudoku Talk)

Author/Opus: This is the 283rd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 2:45, Master = 5:00, Expert = 10:00

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Fireworks (Originally for Diwali/WSC Sudoku Talk)

Author/Opus: This is the 282nd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Sudoku by Thomas Snyder

Sudoku by Thomas Snyder

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Candles (Originally for Diwali/WSC Sudoku Talk)

Author/Opus: This is the 281st puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules.

No answer string (just click “solve”).

Time Standards (highlight to view): Grandmaster = 1:50, Master = 3:15, Expert = 6:30

Solution: PDF

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Best of 2016: Sudoku

Today we’ll look back at our best puzzles of 2016, using data from the FAVE button at the bottom of each post. The selection process included raw FAVE counts, FAVE/solver ratios, and internal discussions if those values brought up ties.

We posted 227 total web puzzles in 2016 and have now crossed >1,000 puzzles online with nearly another thousand in our e-books. I am incredibly proud that we have never released a broken puzzle (i.e., a puzzle with zero solutions/too many solutions). We also restarted our Patreon rewards and got our e-store organized to have an easier path to release puzzles to solvers. While we didn’t release all the titles we wanted to in 2016, particularly the long-delayed The Art of Puzzles 2, the infrastructure we built up last year should help us reach our target of a dozen new e-book collections in 2017. A priority for us this year is a new Sudoku magazine that, like our puzzle titles, will bring together the incredible puzzles from the best puzzle designers for all who love puzzles.

We released 31 sudoku puzzles on the website last year. One of our best sudoku is this “sleepy” Thermo-Sudoku from Prasanna Seshadri with a clever logical path.

Thermo-Sudoku by Prasanna Seshadri

Another highly rated puzzle was this Killer Sudoku by Serkan Yürekli with a Last Ones theme in the cage clues.

Killer Sudoku by Serkan Yürekli

The last two “best of” puzzles came out of a challenge Serkan had with Thomas to try to make a Tight Fit Sudoku that would take at least five minutes to solve. This is a challenging feat given the compact nature of a Tight Fit Sudoku. When Serkan couldn’t do this with classic Tight Fit puzzles he went on to make variations of Tight Fit Sudoku in a quite enjoyable week of puzzles. Dr. Sudoku’s own attempt at a five-minute puzzle, with just odd given digits, required a unique Aha to get to the solution logically — but it still only took three and a half minutes for our best solvers. It was a Patron bonus for that week and earned one of the highest FAVE/solver ratios for the year. [Note: this is one of two patron bonuses to win a Best Of award this year, but they’ll stay blurred on this site.]

Tight Fit by Thomas Snyder

Coming back to Serkan’s week of Tight Fit puzzles, the clear winner for Best Sudoku of 2016 was the Tight Fit Sudoku (Samurai) that closed out the Tight Fit Variations week. While quite difficult, it has a lot of novel logical steps and is a true standout puzzle.

Tight Fit Sudoku by Serkan Yürekli

(view directly for a larger image)

With the most votes of any puzzle, this is also our Puzzle of the Year.