Sunday Update and Solutions

Our first week of 2022 is gathered together in this PDF and the solutions are in this PDF.

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

In 2022 we’re looking to have a few additional kinds of videos on our YouTube channel and we’re releasing our first “Art of Puzzlecrafting” video with Prasanna Seshadri talking about his thoughts in constructing the hard Saturday Fillomino puzzle. We’ll have several more of these through the year (with the next one from me in a couple weeks).

In a few minutes we will also release our first Sunday Stumper of the year.

The next week of puzzles will feature Sudoku and variations, and we’ll have some other news posting as well.

Fillomino by Prasanna Seshadri

Fillomino by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a number entry mode.)

Theme: 2022 Duality

Author/Opus: This is the 222th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Fillomino rules.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 6:30, Master = 9:00, Expert = 18:00

Solution: PDF; a solution video is also available here, and an Art of Puzzlecrafting video from Prasanna describing how he made the puzzle is here.

Note: Follow this link for classic Fillomino and this link for Fillomino variations. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on. More Fillomino puzzles can be found in The Art of Puzzles, in Fill o’ Fillomino and Fill o’ Fillomino 2 by Grant Fikes, and in our beginner-friendly books Logic Puzzles 101 and Starter Pack 1: Fillomino.

Skyscrapers (Sum) by Ashish Kumar

Skyscrapers (Sum) by Ashish Kumar

PDF

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

Theme: The Rising of 2022

Author/Opus: This is the 84th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Variation of Skyscrapers; each clue represents the sum of the heights of the visible buildings in that direction.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 5:45, Master = 11:00, Expert = 22:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Skyscrapers puzzles and this link for variations on Skyscrapers puzzles. If you are new to this puzzle type, here are our easiest Skyscrapers Puzzles to get started on. More Skyscrapers puzzles can be found in The Art of Puzzles, in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli, and in the e-book Skyscrapers by Ashish Kumar.

Thermo-Sudoku by R. Kumaresan

Thermo-Sudoku by R. Kumaresan

PDF

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

Theme: Warm Up for 2022

Author/Opus: This is the 5th puzzle from guest contributor R. Kumaresan.

Rules: Standard Thermo-Sudoku rules.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:15, Master = 7:15, Expert = 14:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for more Thermo-Sudoku puzzles. If you are new to this puzzle type, here are our easiest Thermo-Sudoku to get started on. More Thermo-Sudoku puzzles can be found in The Art of Sudoku 2 and Masterpiece Sudoku Mix 2.

Kurotto by Grant Fikes

Kurotto by Grant Fikes

PDF

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

Theme: Happy New Year

Author/Opus: This is the 361st puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Kurotto rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:15, Expert = 4:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Kurotto puzzles and this link for variations on Kurotto puzzles. If you are new to this puzzle type, here are our easiest Kurotto to get started on. More Kurotto puzzles can be found in the ebook Kurotto by Prasanna Seshadri.

Battleships (Minesweeper) by Jin Hoo Ahn

Battleships (Minesweeper) by JinHoo Ahn

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between ship placement and shading modes. In ship placement mode, right click gives sea, left click gives circle/square, left click and drag for rounded ships.)

Theme: 2021 and 2022

Author/Opus: This is the 38th puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Variation of standard Battleships rules. Instead of exterior clues, clues inside the grid indicate the number of adjacent squares, including diagonally adjacent squares, containing ship segments. Ships do not sit on cells with numbers. Use the indicated fleet.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:15, Expert = 4:30

Solution: PDF; a solution video is also available here.

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

Yajilin by Murat Can Tonta

Yajilin by Murat Can Tonta

PDF

or solve online (using our beta test of Penpa-Edit tools using a composite mode where left click inside cell shades square, left click + drag draws line segment, right click inside cell adds dot, and right click on cell edge adds an x.)

Theme: Welcome to 2022

Author/Opus: This is the 217th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Yajilin rules.

Difficulty: 1 star

Time Standards (highlight to view): Grandmaster = 0:40, Master = 1:15, Expert = 2:30

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Yajilin and this link for Yajilin variations. If you are new to this puzzle type, here are our easiest Yajilin to get started on. More Yajilin puzzles can be found in The Art of Puzzles 2, in Yajilin by Murat Can Tonta and Prasanna Seshadri, and in our beginner-friendly book Logic Puzzles 101.

Schedule for Next Week

We hope you enjoyed seeing some of our Best Puzzles of 2021 collected together last week.

This coming week we’ll be starting off with a Welcome to 2022 variety puzzle mix week with six different genres from Monday to Saturday. We’re also working on a few more site updates and completing our 2022 book plans and will share the info here when ready.

Best of 2021: Object Placement

Here are our best Object Placement puzzles of 2021 selected from the 53 web posts in this category based on FAVE votes, web comments, and tester comments. All of these puzzles are gathered in this PDF file.

While we posted a lot of object placement puzzles this year, two styles in particular got a lot of positive attention from our solvers. Star Battle was one of those two styles and this Star Battle (Builder) from Thomas Snyder early in the year earned a best of 2021 distinction.

Star Battle by Grant Fikes

The other popular style this year was Statue Park where we had several puzzles (not just these next three) very close in votes. A fully antisymmetric “Checkerboards” Statue Park from Murat Can Tonta was one of our best puzzles.

Statue Park by Murat Can Tonta

The other two Statue Park puzzles that earned a top billing were posted on consecutive days and had somewhat complementary themes. First was an all black theme of “Dice Pips” by Jonas Gleim, a great visual and logical treat of a Statue Park.

Statue Park by Jonas Gleim

The partner Statue Park puzzle posted the next day was the all white “Clean” theme from Serkan Yürekli which has a very different kind of solve without any sure object placements given at the start.

Statue Park by Serkan Yürekli

The overall best Object Placement puzzle went to another Star Battle, which is a genre that got more attention from JinHoo Ahn and Murat Can Tonta in our Star Battle 2 book released this year. JinHoo’s “Square Dance” Star Battle is another instant classic from this author, and also earned a distinction as one of the Top 3 puzzles of the whole year.

Star Battle by JinHoo Ahn

Best of 2021: Region Division

Here are our best Region Division puzzles of 2021 selected from the 52 web posts in this category based on FAVE votes, web comments, and tester comments. All of these puzzles are gathered in this PDF file.

One of our early weeks in 2021 focused on Araf puzzles and this “Oh Nine” Araf by Jeffrey Bardon showed that 2021 was going to be a good year for Region Division puzzles. Like some of our other best puzzles this year, this puzzle uses just the standard rules of a “classic” style, but it stretches those rules a bit in the visual presentation to lead to a very interesting looking puzzle as well as a very interesting solve.

Araf by Jeffrey Bardon

While there is some debate about if Kuromasu (which uses rules similar to Cave and Four Winds) is a Region Division puzzle or a Shading puzzle, there is no debate that Swaroop Guggilam’s Kuromasu was one of the best 2021 puzzles based off the vote of our solvers. The X pattern in this grid leads to a nice interaction of clues.

Kuromasu by Swaroop Guggilam

The “checkered” variation of Fillomino led to another favorite puzzle in 2021, this one from Serkan Yürekli where the clues are under “Siege”.

Fillomino by Serkan Yürekli

This year had a close race between two Pentominous puzzles for the top Region Division spot. One of these puzzles, a Pentominous (Cipher) by Takeya Saikachi, was another gem from this constructor with a “Box in Box” theme.

Pentominous (Cipher) by Takeya Saikachi

Our best Region Division puzzle of the year goes to this unusual Pentominous by Elyot Grant that again obeys all the regular rules of the style but takes advantage of an unusual grid shape to make a “No Givens” puzzle that has a lot of different thinking to get to the one answer.

Pentominous by Elyot Grant