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Penpa Update, and one Star Battle video revisited

Thanks to the great support of Swaroop Guggilam, we have already updated our Penpa-Edit beta to have new solving functionality for Star Battle. In addition to the left click on a cell to place a star, and right click (or right click and drag) to mark X’s, you can now right click on an edge or corner of a cell to place a dot clue. Putting in a star in a cell touching a dot will make the dot go away so your notes clean up after themselves. You may need to clear downloaded files from your browser cache to get the latest version of the solving interface to show up, but we hope you enjoy this improvement as much as we do.

While there was nothing “wrong” with our first solving video for the Pinwheel puzzle, it used some trickier steps than it needed to. So we made a new YouTube video to highlight the new solving interface tool for Star Battle, as well as a simpler path to get around the Pinwheel:

New e-book: Araf by Serkan Yürekli

Our plan is to release at least 1 new e-book each month in 2021. Our first release is a really great title: Araf by Serkan Yürekli, with more region division puzzles like we just posted this past week on the site.

This book is a full exploration of Araf from Serkan, with lots of clever puzzles and Aha moments. There are a total of 50 hand-crafted puzzles, including 12 puzzles across three variations and a giant Araf at the end. Check it out now in our e-store.

New E-Book: Plenty O’ Pentominous 3 by Grant Fikes and Murat Can Tonta

Our solvers have found Pentominous to be a really great region division puzzle, so we are excited to announce the third volume in our e-book series, Plenty O’ Pentominous 3, has just been released on our e-store. Grant Fikes and Murat Can Tonta are back with another incredible set of Pentominous puzzles, including 8 Pentominous (Borders) variations.

If you are new to this puzzle type, here are our easiest Pentominous to get try out.

Sunday update with solutions

Our most recent week of Statue Parks can be found in this PDF and the solutions are all grouped in this PDF and have also been linked to the individual posts.

We have a solving video for three of this past week’s puzzles starting with the Wednesday “Parquet” Statue Park from Thomas Snyder:

as well as the difficult Friday “Polarization” Statue Park from Serkan Yürekli:

and the Saturday “Corners” Statue Park from Murat Can Tonta:

This upcoming week will feature a variety mix of puzzles from across our six puzzle genres.

Sunday update with solutions

Note: We sill have issues with the solving applet and logins; this seems to be tied to some new security updates on web browsers and may be difficult to fix but we will keep you updated.

Our most recent week of Skyscrapers puzzles can be found in this PDF and the solutions are all grouped in this PDF and have also been linked to the individual posts.

We have two solving videos for this week. The first introduces a generally useful way to look at 2 clues in a skyscrapers puzzle based on the Tuesday puzzle. This tip will be reviewed (alongside a few others) in the video for the Saturday puzzle.

This upcoming week will feature Kurotto puzzles.

Ask Dr. Sudoku #17: Thoughts on digital solving options and

While I am mainly a pencil-and-paper puzzle solver, I always thought GMPuzzles would eventually find some digital outlets. Not necessarily one outlet — our different styles have different needs and a good app for Sudoku/TomTom is probably quite different from a good app for Tapa/Nurikabe — but at least some outlets where we would be content providers. While I will soon have some of my TomTom puzzles as part of one app-based release, this is the exception and not the rule after 7.5 years.


Schedule for Next Week

Our most recent variety mix of WPC practice puzzles from Palmer Mebane can be found in this PDF.

This coming week features Spiral Galaxies, a region division style that focuses on symmetry. We have several classic Galaxies and a few variations during the week. We are close to finishing an e-book (part of The Art of Puzzles 2) featuring Spiral Galaxies; be on the watch for this before the new year.

This week, our subscribers are getting early access to the full week of puzzles and images of the puzzle solutions. Master+ subscribers to the site are getting a bonus Spiral Galaxies and a Double Spiral Galaxies both by Thomas Snyder. If you want to become a subscriber and get access to bonus puzzles, solutions, e-books, and other rewards, check out this page.