Our past week of Cave puzzles is collected in this PDF and the solutions are in this PDF. There are more Cave puzzles in these e-books in our store.

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

This next week will feature Minesweeper puzzles.

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: Mirror Cave

Author/Opus: This is the 386th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Cave rules.

Difficulty: 3 stars

Time Standards (highlight to view): Grandmaster = 2:45, Master = 4:15, Expert = 8:30

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

Note: Follow this link for 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.

Our past week of Sudoku puzzles and variations is collected in this PDF and the solutions are in this PDF. There are more Sudoku puzzles in these e-books in our store.

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

This next week will feature Cave puzzles.

For those that missed it, we released a new e-book TomTom last Sunday. It is a great collection from four of our puzzlemasters for this number placement style. We are working to complete two 25-puzzle Sudoku variation packs this month and will then release our first edition of a quarterly puzzle mix magazine late in August. As we’re finding we are on track to release 12 books this year (about one a month), we’re considering restarting a subscription option for people to get some/all of our book content at a discount. Please watch this space for more info in the coming months and, as always, share any feedback you have with us on our puzzle collections.

Our past week of Slitherlink puzzles is collected in this PDF and the solutions are in this PDF. There are more Slitherlink puzzles in these e-books in our store.

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

This next week will feature Sudoku puzzles including two variations, and our next Sunday Stumper will be released next on July 18th.

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: Diagonals

Author/Opus: This is the 385th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Slitherlink rules.

Difficulty: 2 stars

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

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

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.

Just released to our e-store is this TomTom collection. Our puzzlemasters Ashish Kumar, JinHoo Ahn, Murat Can Tonta, and Serkan Yürekli have worked together to create 63 incredible hand-crafted challenges. Your mind will need to stretch a lot to solve the 42 classic TomToms, 20 variations (4 each in 5 different styles), and the giant TomTom (Samurai) puzzle that concludes the book. If you enjoy mathematical and logical challenges, this book will be perfect for you.

Our past week of LITS puzzles is collected in this PDF and the solutions are in this PDF. There are more LITS puzzles in these e-books in our store.

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

Later today we’ll be releasing our next e-book, TomTom, with 63 puzzles from four of our grandmasters.

This next week will feature Slitherlink puzzles.

Our variety mix of hexagonal puzzles from last week is collected in this PDF and the solutions are in this PDF.

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

This next week will feature a mix of LITS puzzles.

PDF

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

Theme: Mini Hexes

Author/Opus: This is the 384th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Variation of LITS. Shade exactly four cells in each outlined region to form an S, L, I, C, or Y tetrahex. When all regions have been shaded, the following conditions must be true:
1) All shaded cells will be connected through a network of adjacent shaded cells;
2) No three shaded cells will share a common vertex;
3) When two tetrahexes share an edge in adjacent regions, they must not be the same type (S, L, I, C, or Y), regardless of potential rotations or reflections.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:00, Master = 8:00, Expert = 16:00

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

Note: Follow this link for more variations of LITS and this link for classic LITS. If you are new to this puzzle type, here are our easiest LITS to get started on. More LITS puzzles can be found in LOTS O’ LITS by Grant Fikes and Prasanna Seshadri, in The Art of Puzzles 2, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Our past week of TomTom puzzles is collected in this PDF and the solutions are in this PDF. The Sunday Stumper we just posted will be added to our large puzzle file later this week on our All Weekly PDFs page. There are more TomTom puzzles in these e-books in our store and we will be releasing a new TomTom collection in the next few weeks.

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

This next week will feature a variety mix of puzzles, all on hexagonal grids. Also, if you haven’t done it yet, this weekend is a Puzzle Grand Prix round co-authored by me and Serkan Yürekli.