Nanro by Prasanna Seshadri

Nanro by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools; use the tab key to alternate between shading and number entry modes)

Theme: P Pentominoes

Author/Opus: This is the 6th puzzle from our new contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Nanro rules.

Answer String: Enter the length in cells of each of the segments labeled with numbers from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 3:30, Master = 4:45, Expert = 9:30

Solution: PDF

Note: This is our third Nanro puzzle; if you are new to this puzzle type please first try out the example on the Rules and Info page as well as this Monday’s Nanro post first.

LITS by Prasanna Seshadri

LITS by Prasanna Seshadri

View image directly for larger form.

PDF

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

Theme: Welcome PS to GM Puzzles! (the shading is just for artistic purposes)

Author/Opus: This is the 5th puzzle from our new contributing puzzlemaster Prasanna Seshadri.

Rules: Standard LITS rules.

Answer String: Enter the length in cells of each of the shaded segments from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 6:00, Master = 11:30, Expert = 23:00

Solution: PDF

Note: Follow this link for other classic LITS. If you are new to this puzzle type, here are our easiest LITS to get started on.

Nanro by Mystery Author

Nanro by Mystery Author

PDF

or solve online (using our beta test of Penpa-Edit tools; use the tab key to alternate between shading and number entry modes)

Theme: Question Marks — who is the author? (the shading is just for artistic purposes)

Author/Opus: This is the 4th puzzle from our new contributing puzzlemaster who will be identified tomorrow. [ETA: The author has been revealed as Prasanna Seshadri.]

Rules: Standard Nanro rules.

Answer String: Enter the length in cells of each of the segments labeled with numbers from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 3:15, Master = 4:30, Expert = 9:00

Solution: PDF

Note: This is our second Nanro puzzle, so if you are new to this puzzle type please also try out the example on the Rules and Info page as well as our earlier Nanro post first.

Tapa by Mystery Author

Tapa by Mystery Author

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)

Theme: Fractional Sums (in three of the rows, treating the clues on the left as fractions and adding them together yields the integer on the right; eg 3/2+2/2+3/2 = 4)

Author/Opus: This is the 3rd puzzle from our new contributing puzzlemaster who will be identified later this week. [ETA: The author has been revealed as Prasanna Seshadri.]

Rules: Standard Tapa rules.

Answer String: Enter the length in cells of each of the shaded segments from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:15, Expert = 6:30

Solution: PDF

Note: Follow this link for other classic Tapa. If you are new to this puzzle type, here are our easiest Tapa to get started on.

Yajilin by Mystery Author

Yajilin by Mystery Author

PDF

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

Theme: 2014

Author/Opus: This is the 2nd puzzle from our new contributing puzzlemaster who will be identified later this week. [ETA: The author has been revealed as Prasanna Seshadri.]

Rules: Standard Yajilin rules.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.

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

Solution: PDF

Note: Follow this link for other classic Yajilin. If you are new to this puzzle type, here are our easiest Yajilin to get started on.

Nanro by Mystery Author

Nanro by Mystery Author

PDF

or solve online (using our beta test of Penpa-Edit tools; use the tab key to alternate between shading and number entry modes)

Theme: Countdown to …

Author/Opus: This is the 1st puzzle from our new contributing puzzlemaster who will be identified later this week. [ETA: The author has been revealed as Prasanna Seshadri.]

Rules: Standard Nanro rules.

Answer String: Enter the length in cells of each of the segments labeled with numbers from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 2:15, Master = 3:30, Expert = 7:00

Solution: PDF

Note: This is our first Nanro puzzle, so if you are new to this puzzle type please also try out the example on the Rules and Info page.

And one more thing …

While the last week of posts covered the best of 2013 and some things to look forward to in 2014, I wanted to make a separate post about funding the site going forward.

To this point, our website has been free; but you must recognize that most of the puzzlemakers here have been blogging for years with very little reward for their work besides your thanks in comments. I set one year after launch as a point to have a discussion on when and if things should change from “free” to something else. I’ve dismissed for now adding either advertisements (unlikely to make much money) or registration costs (unlikely to let us continue to grow users) as a means of getting support for our puzzle writing. However, I’ve strongly considered going to a patronage system where people who want to support us have an easy outlet to do so. This is sometimes a “Tip Jar” on websites, but I don’t know that that is as effective as it could be. I’ve been interested in trying out new systems to directly reward devoted fans and also tap into social networks a bit more; to this end, we now have a Patreon page for people who want to contribute funds for our puzzlemaking.

The general idea of Patreon is to support creative people in a world where fewer and fewer content providers want to pay for quality work. Instead of supporting one big project, like Kickstarter and Indiegogo do, the goal at Patreon is to get patrons to support an artist as he/she continues to put out work. In our case, every time we deliver a month of puzzles, we would get some support from each of our patrons. This would help us reimburse our authors and pay for our website to keep running.

To encourage patronage, we have also set up some rewards. These include early access to puzzles, solution images, puzzle walkthroughs (one of our most unique features that we want to start doing regularly again), and even bonus puzzles or custom puzzles from our puzzlemasters. This bonus content will only be available to our supporters. When I spoke about monthly “Puzzle Packs” in the last post, I should have mentioned that the easiest way to get everything we do at Grandmaster Puzzles in 2014 is going to be to support us at Patreon at the Grandmaster level. Consider it a subscription to all the content we ever release as every PDF book we put out in a given month will go to supporters at that level during that month. Patreon recently added PayPal support, which should make it much more accessible for some of our solvers to consider funding us.

We realize this is a new idea — for us and for you — but we’d like you to consider what you get out of Grandmaster Puzzles and if you’d be willing to help it keep growing. We’re not putting up any paywall or ads; we’ll still have an (almost) daily puzzle here for awhile for anyone who wants to browse our site. But we can be bigger and better with your help. So please check us out over at Patreon.

-Thomas, writing for all of the contributors to GMPuzzles

Best of 2013: Other, and End of Year 1 Thoughts

While all of the last posts had easily defined categories, we did have a few puzzles this past year that went well outside of the box. We wanted to give them some recognition as our Best of 2013 comes to a close.

First, our reward for “Best Puzzle Response” has to go to Craig Kasper for one of his Sunday Surprises. After Grant Fikes posted a Doctor Who-themed “Seek and Spell Sudoku”, Craig put together a quite appropriate and humorous retort from the Daleks. It was certainly one of our more memorable jokes of the year.

“Best Repeat” has to go to Grant’s LITS + Double Back puzzle from July. While it scored ok in each category, that it actually worked as two kinds of puzzle made it something we didn’t mind posting twice. We’ll try to double back on Double Back puzzles later this year.

Finally, “Best Surprise” was clearly won by Dr. Sudoku’s April 1st Word Search puzzle. If you haven’t tried it yet, you really should without any spoilers so we won’t say anything more except our readers thought it was awesome.

2013 was an incredible year for us. Many years ago Wei-Hwa Huang and I came up with a dream to build a daily puzzle site. While we never had the time to get it off the ground then, Grandmaster Puzzles is now a clear destination site for logic puzzle fans around the world. We currently have five regular authors and one more on the way starting tomorrow. In 2014 we hope to have a few more guest authors appear here and there. There will also be a few format changes to make the site more accessible to newcomers, which you’ll notice in the coming weeks. One of the larger ones is that we will have a return to having some focused weeks where a particular puzzle type will be highlighted.

One big change in 2014 is that we will plan to put out regular PDF “Puzzle Packs” for sale every month. Our long awaited “The Art of Puzzles” will actually be released first as five separate puzzle packs currently planned to start at the end of this month, with a Tapa and Nurikabe collection, and then two more in February, and the last two in March. The complete set will then be published as a print-on-demand book for solvers who’d prefer a hard copy. After that we have a few different sudoku and other puzzle packs in the works — some from individual authors and others from a mix of contributors. I don’t know if I can meet my New Year’s Resolution of getting one out each month in 2014, but with more help on the site now we should be able to get close.

I’ll close this post with some solving stats from the first year. We posted 322 puzzles and actually had several solvers complete them all (or come very close). At 99+% completion when we last checked were lukabear, achan1058, muhorka, kiwijam, Projectyl, sknight, sworls, JooMY, and FoxFireX, while migross76, uvo, Alien, and sfcorgi were quite close. These are clearly our top fans for the year! Once we have a nice prize to raffle off we will give something out to at least one of these frequent solvers. We had 30 solvers register solutions to at least 200 puzzles and in total had over 15,000 correct answers this year. (Many visitors just download the puzzles and don’t track their answers on the webpage, but to make our leaderboard you’ll need to submit.)

Our most solved puzzle is surprisingly our very first prescription, Dr. Sudoku Prescribes #1, which had the benefit of lots of direct links in January and has slowly been gaining finishers throughout the year. With so many puzzles now, a lot of solvers have certainly put some of these on their “backlog”. In terms of web traffic, we outgrew our first server set-up by the midyear, but have been stable and on-line consistently since then after a change of hosts/servers. I hope we continue steady growth in 2014 without needing to again rebuild things.

Most important to me, we had 0 broken puzzles for the whole year; every single one had just one solution. Some of the credit for this goes to our authors who are diligent about their submissions, but some thanks must also go to our many test-solvers for double- and triple-checking. There are a few computer-generated puzzle makers that write things like “our automatic process guarantees no broken puzzles” as if this is some unique benefit of their process. Proper development, editing, and testing can be done with more elegant hand-crafted puzzles too. While we might eventually make an error once in a blue moon, our solvers should consider our puzzles quite reliable.

As always, we appreciate your input on what you’d like to see here, and we thank you for your readership over the year.

Best of 2013: Loop Puzzles

We started with two loop genres (Slitherlink and Masyu) and added our own take on another (Yajilin) later in the year. But some Snake, Path, and other puzzles came in as well. In this category, variations seemed to get high ratings most consistently, with a surprise favorite among the group.

All for One and One for All, one of our first Slitherlink puzzles with an uncommon center, was the early favorite in this category.

Slitherlink by Thomas Snyder

But two Slitherlink variations would end up tied with higher rankings at the end of the year. March brought us Slitherlink (Domino) from Grant Fikes, an entertaining puzzle that gave domino clues and required the loop to be tiled as dominoes (but not necessarily uniquely, which led to much debate).

Slitherlink by Grant Fikes

While there were no wolves in sheep’s clothing in our next favorite, Slitherlink (Sheep/Wolves) from October was also well-received.

Slitherlink by Thomas Snyder

Among the Masyu, the most top votes went to Grant’s extra large format puzzle from June (Grant contributed two more large Masyu to The Art of Puzzles which we can’t wait to show you).

Masyu by Grant Fikes

But the favorite in the category was a much more recent puzzle, Tapa-like Loop from Serkan Yürekli. Whether this variation has enough steam to become a regular puzzle type remains to be seen, but a lot of solvers enjoyed this one example so we will try to have some more in 2014.

Tapa-like Loop by Serkan Yürekli

These phenomenal loop puzzles are gathered together in this PDF.

Best of 2013: Region Division Puzzles

Fillomino and Cave are the two major Region Division styles we have here at GMPuzzles, and 2013 saw 39 puzzles across this space. The favorites here span the calendar year.

Standard Fillominoes formed many of your most favorite puzzles. While it was one of the more recent puzzles, Grant’s 28-dice opus #8 received a good ratio of fave votes to solves.

Fillomino by Grant Fikes

In July, after Palmer debuted as a contributor here, his seventh puzzle with an Antisymmetric Ones theme received your votes.

Fillomino by Palmer Mebane

And perhaps because of the challenge (our hard puzzles seem to be more favored than our easier ones), Squeeze Play from March also made the final cut.

Fillomino by Thomas Snyder

These two cave puzzles slightly edged out Fillomino at the very top this year though. Almost Perfect 10? from our initial release of Cave puzzles got high marks.

Cave by Thomas Snyder

But the Region Division Puzzle with the most votes was this Cave (Product) variation from early April. We’ll certainly see if we can provide more of this Product variety in the future.

Cave by Thomas Snyder

You’ll find all these puzzles grouped in this PDF.