There are two more days left in our e-store sale. Any purchase of $25 or more will get a 20% discount automatically taken off at our web store. The discount applies to all of our books, including our two latest, Arrow Sudoku and Outside Sudoku, from the Masterpiece Sudoku Mix series.

Our past week of “Two puzzles, one grid” is collected in this PDF and the solutions are in this PDF.

The daily solution videos are on the posts and linked below:

and there will be a Sunday Stumper (also with a second valid puzzle style like the rest of this past week) posting soon.

This next week will feature Nanro puzzles.

Later today we will be releasing two new parts of our Masterpiece Sudoku Mix series, as well as details on a “Cyber Monday” week sale for our puzzle books. As another Thanksgiving Holiday bonus, we finished digitizing four more puzzle styles in our backlog for solving with Penpa-Edit. The new additions are Cave, Castle Wall, Balance Loop, and Statue Park. We are now over 1,150 total puzzles digitized, over half of our website.

Our past week with Tapa-Like Loop puzzles is collected in this PDF and the solutions are in this PDF. More Tapa-Like Loop puzzles can be found in the Tapa-Like Loop Collection by Prasanna Seshadri.

The daily solution videos are on the posts and linked below:

This next week will feature a variety mix with “one grid, two puzzles” where the clues in each grid can be solved in two different ways. We’ll post the first puzzle style at 9 AM PT and the second style at 9 PM PT, but solvers can try to guess what style is the second puzzle in the time between postings. Some will be more obvious than others. And while the 9 AM puzzles will follow our usual Monday-Saturday difficulty progression, the paired puzzles will not. There will also be a Sunday Stumper next week with a seventh puzzle in this set of pairs.

Our past week with Kuromasu and Snake Pit puzzles is collected in this PDF and the solutions are in this PDF.

The daily solution videos are on the posts and linked below:

This next week will feature Tapa-Like Loop puzzles. Also, we have added Penpa solving links to old posts for every Snake Pit, Kuromasu, and Tapa-Like Loop puzzle recently. You can see all the fully digitized genres on our Penpa Notes page.

As an extra bonus for this week, I’m sharing a YouTube link to a recent puzzle constructors panel that Prasanna Seshadri and I were part of for the World Sudoku + Puzzle Convention. If you are interested in different stories about how we got into puzzle construction, things we keep in mind when writing puzzles, even knowing who some of our favorite constructors are, please check out the video.

Tied to this event, I’ve been wondering if there are other kinds of videos (besides solving videos) to add to our YouTube channel. If you think an “Ask Dr. Sudoku” vlog, construction or competition stories, or anything else might be interesting for our open Monday slots, we may try to make them in 2022.

If you missed our post last weekend, our latest e-book, Star Battle 2 by JinHoo Ahn and Murat Can Tonta, is now available for sale in our store and two more Masterpiece Sudoku Mixes are on track to be added before the end of the month.

This week is also the World Sudoku + Puzzle Convention and our contributing puzzlemasters Prasanna Seshadri and Ashish Kumar constructed some of the puzzles alongside other international authors. Please check out some of the puzzle rounds and other events. I will be speaking as part of a “Puzzle Authors panel” on Thursday the 18th from 14:30-16:00 GMT. I don’t know if I will be able to find time to “compete” during the official schedule due to my current commitments — the extended time for next weekend may help — but I wish those that do compete the best of luck and skill and hope to see many of you in the future at the next live WSPC.

Our past week with a variety mix from guest authors is collected in this PDF and the solutions are in this PDF.

The daily solution videos are on the posts and linked below:

This next week will feature two Region Division styles, with a set of three Kuromasu puzzles and three Snake Pit puzzles.

Our latest e-book was just released to our store: Star Battle 2 by JinHoo Ahn and Murat Can Tonta. These two brilliant puzzlemakers have partnered to make this special set of 51 puzzles, including 35 classic Star Battles, 16 variations, with lots of visually and logically interesting challenges. Check this book out!

Our past week of Sudoku puzzles and variations is collected in this PDF and the solutions are in this PDF.

The daily solution videos are on the posts and linked below:

This next week will feature a variety mix of puzzles across six genres. There will also be a challenging Killer Sudoku as a Sunday Stumper posting in a few minutes.

Our past week of Cross the Streams puzzles is collected in this PDF and the solutions are in this PDF.

The daily solution videos are on the posts and linked below:

This next week will feature Sudoku puzzles and variations. There will also be a challenging Killer Sudoku as a Sunday Stumper next weekend.

Our past week of Kakuro puzzles is collected in this PDF and the solutions are in this PDF. More Kakuro puzzles can be found in our e-store in the books Kakuro and Variations by Serkan Yürekli and The Art of Puzzles 2.

The daily solution videos are on the posts and linked below:

This next week will feature Cross the Streams puzzles.

Our past variety mix week of puzzles is collected in this PDF and the solutions are in this PDF.

The daily solution videos are on the posts and linked below:

This next week will feature Kakuro puzzles.

Our past variety week of Star Battle puzzles is collected in this PDF and the solutions are in this PDF. More Star Battle puzzles can be found in these books by Grandmaster Puzzles. We will have a new Star Battle 2 e-book by JinHoo Ahn and Murat Can Tonta later this fall.

The daily solution videos are on the posts and linked below:

This next week will be a variety mix of six different genres. We’ll also have a Sunday Stumper (Star Battle variation) posting in a few minutes.

Our past variety week of Round Trip puzzles is collected in this PDF and the solutions are in this PDF. More Round Trip puzzles, as well as other loop variety puzzles, can be found in the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.

The daily solution videos are on the posts and linked below:

This next week will feature Star Battle puzzles, including a Sunday Stumper at the end of the week. We’re working on another Star Battle book to release before the end of the year, and hope that you enjoy the Object Placement challenges this week.