Slitherlink by Freddie Hand

Slitherlink by Freddie Hand

PDF

or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)

Theme: White Hole

Author/Opus: This is the 9th puzzle from guest contributor Freddie Hand.

Rules: Standard Slitherlink rules.

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:30, Expert = 5:00

Solution: PDF

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

Slitherlink by Tom Collyer

Slitherlink by Tom Collyer

PDF

or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)

Theme: Plaid

Author/Opus: This is the 44th puzzle from our contributing puzzlemaster Tom Collyer.

Rules: Standard Slitherlink rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:30, Expert = 3:00

Solution: PDF

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

Slitherlink by Grant Fikes

Slitherlink by Grant Fikes

PDF

or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)

Theme: Long Lines

Author/Opus: This is the 323rd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Slitherlink rules.

Difficulty: 1.5 stars

Time Standards (highlight to view): Grandmaster = 0:50, Master = 1:30, Expert = 3:00

Solution: PDF

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

Best of 2019: Shading Puzzles

Here are our best Shading puzzles of 2019, selected from the 41 web posts in this category based on your FAVE votes:

Our first best shading puzzle of 2019 is actually two puzzles. As part of his debut week at GMPuzzles, Ashish Kumar created a set of puzzles that each had two different solving options from the same clues. With some help from editor (becoming co-author) Thomas Snyder, this Kurotto (and Cave) came together really well and got a lot of favorite votes.

Kurotto by Ashish Kumar and Thomas Snyder

Many of our “best of” puzzles get attention due to unusual clues and fun Aha moments, and the center of this Nanro by John Bulten certainly fits that description.

Nanro by John Bulten

John Bulten also was the author behind this favorite LITS puzzle with a Pi theme and a fun easter egg for our regular solvers.

LITS by John Bulten

Our top two were both Tapa puzzles of different forms by Murat Can Tonta. This Tapa (Regional) puzzle combined some different ways of thinking about clues in a clever and challenging package.

Tapa by Murat Can Tonta

And our Best Shading puzzle of 2019 was this classic Tapa by Murat. While on the easier end (usually our top vote getters are very difficult puzzles), the visual theme and smooth solve stood out for our voters.

Tapa by Murat Can Tonta

All of these best Shading puzzles are collected in this PDF file.

Sunday update with solutions

Our most recent week of Tapa 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 also have a solution video for this week for the Friday Tapa (Skyscrapers) puzzle.

From our video archive, we’re pulling out another shading puzzle variation, a Cross the Streams (LITS) puzzle by Bryce Herdt from 2017.

Later today we’ll post our Best of 2019 Shading puzzles. And this upcoming week we will feature Slitherlink and then the last Best of category with Loop/Path puzzles.

Tapa (Double) by Serkan Yürekli

Tapa (Double) by Serkan Yürekli

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: Prisoner

Author/Opus: This is the 285th puzzle from our managing editor Serkan Yürekli.

Rules: Standard Tapa rules. Additionally, shade two separate Tapa walls that do not overlap or cross each other. All digits in a clue cell refer to the shading of just one Tapa wall within the puzzle and provide no information on the shading of the other wall around that clue.

See also this example:

Tapa (Double) by Serkan Yürekli

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 3:45, Master = 11:45, Expert = 23:30

Solution: PDF

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

Tapa (Skyscrapers) by Freddie Hand

Tapa by Freddie Hand

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: The Silence of the Tapa

Author/Opus: This is the 8th puzzle from guest contributor Freddie Hand.

Rules: Standard Tapa rules. Also, numbers outside the grid show the number of separate wall segments visible in that direction. A segment of length N in a given direction is taken as a building of height N. Buildings of height N block the view of all buildings behind them of equal or lesser height.

See also this example:

Tapa (Skyscrapers) by Serkan Yürekli

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 4:30, Master = 10:30, Expert = 21:00

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

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

Tapa (Islands) by Murat Can Tonta

Tapa by Murat Can Tonta

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: Illusion of Choice

Author/Opus: This is the 169th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Tapa rules. Also, similar to Nurikabe, each clue cell is part of an island of horizontally and vertically connected white cells. Islands are allowed to touch diagonally. Islands may contain at most one clue cell, and the area of the island must be one of the numbers in the clue (as an example, if a clue is 15, then the island containing that clue must be either 1 cell or 5 cells large).

See also this example:

Tapa (Islands) by Serkan Yürekli

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 2:00, Master = 5:30, Expert = 11:00

Solution: PDF

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

Tapa by Ashish Kumar

Tapa by Ashish Kumar

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: Narrow Alleyways

Author/Opus: This is the 45th puzzle from our contributing puzzlemaster Ashish Kumar.

Rules: Standard Tapa rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:00, Master = 2:45, Expert = 5:30

Solution: PDF

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

Tapa by JinHoo Ahn

Tapa by JinHoo Ahn

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: Doubles

Author/Opus: This is the 5th puzzle from guest contributor JinHoo Ahn.

Rules: Standard Tapa rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:00, Master = 2:15, Expert = 4:30

Solution: PDF

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