Cave (Product) by Thomas Snyder

Cave by Thomas Snyder

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: Powers of Two

Author/Opus: This is the 411th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Variation of Cave rules. Each clue represents the product of the # of row cells visible (including the cell itself) with the # of column cells visible (including the cell itself).

Difficulty: 3 stars

Time Standards (highlight to view): Grandmaster = 4:00, Master = 5:45, Expert = 11:30

Solution: PDF and solving video.

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.

Statue Park (Tapa Clues) by JinHoo Ahn

Statue Park (Tapa Clues) by JinHoo Ahn

PDF

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

Theme: Octagon

Author/Opus: This is the 45th puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Standard Statue Park rules, using a standard pentomino set. Number clues are equivalent to white circles and cannot be shaded. Also, number clues behave like Tapa clues and indicate the length(s) of consecutive shaded block(s) in the neighboring cells.

See also this example:

Statue Park (Tapa Clues) Example by Serkan Yürekli

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 6:45, Master = 15:00, Expert = 30:00

Solution: PDF and solving video.

Note: Follow this link for other classic Statue Park and this link for Statue Park variations. 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.

Statue Park by Sam Cappleman-Lynes

Statue Park by Sam Cappleman-Lynes

PDF

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

Theme: Boxes

Author/Opus: This is the 8th puzzle from guest contributor Sam Cappleman-Lynes.

Rules: Standard Statue Park rules. This puzzle uses a standard pentomino set.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 5:15, Master = 8:30, Expert = 17:00

Solution: PDF and solving video.

Note: Follow this link for other classic Statue Park and this link for Statue Park variations. 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.

Kakuro (Nonconsecutive) by Thomas Snyder

Kakuro by Thomas Snyder

PDF

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

Theme: 2022

Author/Opus: This is the 410th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Kakuro rules. Also, no two consecutive digits (i.e., digits that differ by 1) can be in cells that share an edge.

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 10:00, Master = 14:30, Expert = 29:00

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

Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.

Kakuro (Hex) by Murat Can Tonta

Kakuro by Murat Can Tonta

PDF

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

Theme: Black Hexagon

Author/Opus: This is the 221st puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Kakuro rules except on a hexagonal grid: Fill all empty hexes with digits from 1-9 so that all number clues (in white) indicate the sum of the digits in that direction. Digits cannot repeat in any entry (i.e., any group of hexes connected either horizontally or in one of the two diagonal directions, without any black cells separating them). This no repeat rule applies even for unclued entries.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 7:45, Master = 10:00, Expert = 20:00

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

Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.

Balance Loop (Inequality) by Prasanna Seshadri

Balance Loop by Prasanna Seshadri

PDF

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

Theme: Twins in Rings

Author/Opus: This is the 231st puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: (Standard Balance Loop rules.) Draw a single, non-intersecting loop that passes through all circled cells. All white circles must have equal segment lengths on both sides of the circle before turning. All black circles must have unequal segment lengths on both sides of the circle before turning. Numbers indicate the sum of the segment lengths on both sides of the circle.

Also, number clues are not fully specified and must strictly follow the inequality values given.

See also this example:

Balance Loop (Inequality) Example by Serkan Yürekli

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 9:00, Master = 13:15, Expert = 26:30

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

Note: Follow this link for other Balance Loop puzzles. If you are new to this puzzle type, here are our easiest Balance Loop Puzzles to get started on. More Balance Loops can be found in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli and in Balance Loop by Prasanna Seshadri and Murat Can Tonta.

Thermo-Sudoku by Thomas Snyder

Thermo-Sudoku by Thomas Snyder

PDF

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

Theme: 3/25

Author/Opus: This is the 409th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Thermo-Sudoku rules.

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 10:00, Master = 17:30, Expert = 35:00

Solution: PDF; a solution video from the Cracking the Cryptic team is available here. Thomas may come back to write a “how this was made” type video in the coming weeks but the CtC solve captures most of the intended logic.

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.