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.
You can find all the puzzles from our Araf week in this PDF and the solutions are all grouped in this PDF. We will be releasing a new Araf book from Serkan Yürekli in the next day or so; come back for more info.
We have three solving videos this week using our Penpa-Edit solving interface. This starts with the Araf (Line) by Serkan Yürekli:
Next is a video for the “Oh Nine” Araf by Jeffrey Bardon:
Finally, we have a solving video for the Saturday “Cyclops” Araf by Serkan Yürekli:
This coming week will feature Kurotto puzzles, which we recently featured in an e-book by Prasanna Seshadri.
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 shading mode.)
Theme: Cyclops
Author/Opus: This is the 315th puzzle from our managing editor Serkan Yürekli.
Rules: Standard Araf rules.
Difficulty: 3.5 stars
Time Standards (highlight to view): Grandmaster = 4:15, Master = 6:45, Expert = 13:30
Solution: PDF; a solution video is also available here.
Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on. More Araf puzzles can be found in the ebook Araf by Serkan Yürekli.
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 shading mode.)
Theme: Oh Nine
Author/Opus: This is the 2nd puzzle from guest contributor Jeffrey Bardon.
Rules: Standard Araf rules.
Difficulty: 3.5 stars
Time Standards (highlight to view): Grandmaster = 3:30, Master = 6:00, Expert = 12:00
Solution: PDF; a solution video is also available here.
Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on. More Araf puzzles can be found in the ebook Araf by Serkan Yürekli.
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 shading mode.)
Theme: For U
Author/Opus: This is the 314th puzzle from our managing editor Serkan Yürekli.
Rules: Standard Araf rules. Also, there may not be four consecutive cells that are part of a region in any row or column.
Difficulty: 2.5 stars
Time Standards (highlight to view): Grandmaster = 2:45, Master = 3:30, Expert = 7:00
Solution: PDF; a solution video is also available here.
Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on. More Araf puzzles can be found in the ebook Araf by Serkan Yürekli.
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 shading mode.)
Theme: Growing Up
Author/Opus: This is the 373rd puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Variation of Araf rules. Divide the grid into some regions formed of edge-adjacent squares. Each cell is part of one region, and each region should contain exactly two given numbers, one in a yellow circle (>) and one in a red circle (<). Each region must have an area that is strictly between the two inequality values.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:30, Expert = 5:00
Solution: PDF
Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on. More Araf puzzles can be found in the ebook Araf by Serkan Yürekli.
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 shading mode.)
Theme: J
Author/Opus: This is the 72nd puzzle from our contributing puzzlemaster John Bulten.
Rules: Standard Araf rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:00, Expert = 4:00
Solution: PDF
Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on. More Araf puzzles can be found in the ebook Araf by Serkan Yürekli.
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 shading mode.)
Theme: 1 to 9
Author/Opus: This is the 188th puzzle from our contributing puzzlemaster Murat Can Tonta.
Rules: Standard Araf rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:20, Master = 2:00, Expert = 4:00
Solution: PDF
Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on. More Araf puzzles can be found in the ebook Araf by Serkan Yürekli.
You can find all the puzzles from our most recent Sudoku week in this PDF and the solutions are all grouped in this PDF.
We have two solving videos on paper for the Friday Sudoku by Ashish Kumar and the Saturday Arrow Sudoku by Swaroop Guggilam:
This coming week will feature Araf puzzles. If you are unfamiliar with this style (particularly how to solve in Penpa-Edit), this earlier solving video may be helpful for the week.
or solve online (using our beta test of Penpa-Edit tools)
Theme: House
Author/Opus: This is the 10th puzzle from guest contributor Swaroop Guggilam.
Rules: Standard Arrow Sudoku rules.
Difficulty: 4 stars
Time Standards (highlight to view): Grandmaster = 7:30, Master = 13:00, Expert = 26:00
Solution: PDF; a solution video is also available here.
Note: Follow this link for more Arrow Sudoku. If you are new to this puzzle type, here are our easiest Arrow Sudoku to get started on. More Arrow Sudoku puzzles can be found in The Art of Sudoku 2 and Masterpiece Sudoku Mix 3.