Later today we’ll be adding Yajilin-Battleships by Serkan Yürekli to our e-store and we’ll have another title next weekend as we begin publishing more books on our site.

Our most recent week of Cave 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 a solving video for three of this past week’s puzzles. First is a solving video focused on an important heuristic for Cave puzzles, which was quite useful for the Tuesday Cave by Serkan Yürekli:

We also have a video for the Friday “Singularity” Cave by William Hu:

and a video for my “Antisymmetry” Cave:

This upcoming week will feature Balance Loop puzzles including a couple variations.

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the linex mode where left click+drag draws lines and right click marks X’s)

Theme: Antisymmetry

Author/Opus: This is the 364th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Cave rules.

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 7:45, Master = 12:15, Expert = 24:30

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

Note: Follow this link for other classic Caves and this link for Cave variations. If you are new to this puzzle type, here are our easiest Cave Puzzles to get started on. More Cave puzzles can be found in Roger Barkan’s Colossal Cave Collection, in The Art of Puzzles, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

This week we’ll start with some general updates:

First, we’re excited to have some new titles coming to our e-store — the first since our blog relaunch earlier in the year. I’m doing the last touches on two e-books now and will be adding Yajilin Battleships by Serkan Yürekli and Plenty O’ Pentominous 3 by Grant Fikes and Murat Can Tonta to our web store over the next two weekends. Watch for additional posts here when these fun collections are available for purchase.

Second, we have not found any quick fixes to the issues with logging into the solving/fave applet. This seems to be due to updated browser security checks when connecting to external sites. The fix likely requires moving the applet and database to be hosted on our servers and we are working with the external developer to see if this is possible, or if we should find an alternative self-hosted tool.

Our most recent week of Cross the Streams 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 a solving video for two of this past week’s puzzles. First is a solving video for my Cross the Streams (LITS):

We also have a video for the Saturday Cross the Streams (audiobook) from Grant Fikes:

This upcoming week will feature Cave puzzles including one variation.

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a shading mode and 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: Foursomes

Author/Opus: This is the 363rd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Cross the Streams rules. Also, the shaded region must be able to be split into tetrominoes to form a valid LITS solution (meaning all tetrominoes are connected but no two tetrominoes sharing an edge are the same shape, including rotations and reflections).

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 other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.

Our most recent variety week of 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 a solving video for two of this past week’s puzzles. First is a solving video for the LITS from Chris Green:

We also have a video for the Saturday Fillomino variation from Nate Perkins:

This upcoming week will feature Cross the Streams puzzles and variations.

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.

PDF

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

Theme: Parquet

Author/Opus: This is the 362nd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Statue Park rules. This puzzle uses a double set of tetrominoes (Note: as usual, all pieces can be rotated and/or reflected).

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:15, Expert = 4:30

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

Note: Follow this link for other Statue Park Puzzles. If you are new to this puzzle type, here are our easiest Statue Parks to get started on. More Statue Park puzzles can be found in the ebook Statue Park by Murat Can Tonta.

Our most recent week of Skyscrapers 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 two of this week’s puzzles starting with the Thursday Skyscrapers from Ashish Kumar:

as well as the difficult Friday Skyscrapers from Salih Alan:

This upcoming week will feature Statue Park puzzles.

Our most recent mix of Sudoku puzzles and variations 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 two of this week’s puzzles to highlight some of the elegant steps the designers put in, including the Even/Odd Sudoku by Rishi Puri:

as well as the classic Sudoku by Swaroop Guggilam.

This upcoming week will feature Skyscrapers puzzles.

PDF

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

Theme: Big X

Author/Opus: This is the 361st puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Consecutive Pairs Sudoku rules. (If a gray circle is given between two adjacent cells, then the two numbers in those cells must be consecutive. Note not all gray circles are given; adjacent cells without a circle may contain either consecutive numbers or nonconsecutive numbers.)

Difficulty: 2.5 stars

Time Standards (highlight to view): Grandmaster = 2:20, Master = 3:30, Expert = 7:00

Solution: PDF

Note: Follow this link for Consecutive Pairs Sudoku puzzles on this website. If you are new to this puzzle type, here are our easiest Consecutive Pairs Sudoku to get started on. More Consecutive Pairs Sudoku puzzles can be found in The Art of Sudoku 2 and in Masterpiece Sudoku Mix 6: Consecutive Pairs Sudoku.