Archive for the ‘Variation’ Category:

Statue Park (Twilight) by Prasanna Seshadri

Statue Park by Prasanna Seshadri

PDF

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

Theme: Antisymmetry

Author/Opus: This is the 217th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Statue Park rules. Also, the numbers in the black circles show the number of spaces not occupied by pentominoes in orthogonally and diagonally adjacent cells. The numbers in the white circles show the number of spaces occupied by pentominoes in orthogonally and diagonally adjacent cells.

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 11:00, Master = 16:00, Expert = 32:00

Solution: To be posted by next Sunday (October 17th).

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.

Tapa (Islands) by Takeya Saikachi

Tapa by Takeya Saikachi

PDF

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

Theme: 1-7

Author/Opus: This is the 9th puzzle from guest contributor Takeya Saikachi.

Rules: Standard Tapa rules. Also, similar to Nurikabe, each Tapa clue cell is part of an island of horizontally and vertically connected white cells and the area of the island must be one of the numbers in the clue (as an example, if a clue is 1 5, then the island containing that clue must be either 1 cell or 5 cells large). Islands are allowed to touch diagonally. No island can contain more than one number clue cell, but there may be islands without any number clues in the grid.

Difficulty: 2 stars

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

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.

Sunday Stumper: Star Battle (Double) by Murat Can Tonta

This year, we started posting some extra difficult Sunday Stumpers, about once a month. These will be quite tough puzzles, but with a logical path to be found (and solution videos to help). This ninth Sunday Stumper is a new Star Battle variation from puzzlemaster Murat Can Tonta; more of this variant will be in our upcoming Star Battle 2 e-book from JinHoo Ahn and Murat Can Tonta.

Star Battle (Double) by Murat Can Tonta

PDF

(view directly for a larger image)

or solve online (using our beta test of Penpa-Edit tools where a single star in gray means two stars but the standard Star Battle interface is used; if you prefer seeing 1 versus 2 objects, here is an alternate formatting using mines that allows for that.)

Theme: Stars

Author/Opus: This is the 208th puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Star Battle rules with three stars per row, column, and region. Also, there are some shaded cells in the grid and those cells either contain two stars or none. (In a gray cell with two stars, none of the adjacent cells sharing an edge or corner can have any stars.)

See also this example:

Star Battle Double example by Serkan Yürekli

Difficulty: 5 stars

Time Standards (highlight to view): Grandmaster = 10:30, Master = 23:30, Expert = 47:00

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

Note: Follow this link for other classic Star Battles and this link for Star Battle variations. If you are new to this puzzle type, here are our easiest Star Battles to get started on. More Star Battle puzzles can be found in The Art of Puzzles, in the book Star Battle by JinHoo Ahn, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

Spiral Galaxies (Double) by Thomas Snyder

Double Spiral Galaxies by Thomas Snyder

PDF

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

Theme: Double Ring

Author/Opus: This is the 392nd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Variation of Spiral Galaxies. In addition to the standard rules, some circles are shaded gray and must belong to galaxies containing two gray circles, not one, with the circles in rotationally symmetric spots for those galaxies.

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 7:00, Master = 13:15, Expert = 26:30

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

Note: Follow this link for classic Spiral Galaxies puzzles on this website and this link for variations on Spiral Galaxies puzzles. If you are new to this puzzle type, here are our easiest Spiral Galaxies Puzzles to get started on. More Spiral Galaxies can be found in The Art of Puzzles 2.

Spiral Galaxies (Line) by John Bulten

Spiral Galaxies by John Bulten

PDF

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

Author/Opus: This is the 84th puzzle from our contributing puzzlemaster John Bulten.

Rules: Standard Spiral Galaxies rules. Also, there may not be four consecutive cells that are part of a galaxy in any row or column.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 4:00, Master = 6:30, Expert = 13:00

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

Note: Follow this link for classic Spiral Galaxies puzzles on this website and this link for variations on Spiral Galaxies puzzles. If you are new to this puzzle type, here are our easiest Spiral Galaxies Puzzles to get started on. More Spiral Galaxies puzzles can be found in The Art of Puzzles 2.

Japanese Sums by JinHoo Ahn

Japanese Sums by JinHoo Ahn

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between number entry and shading modes.)

Theme: Magic Squares

Author/Opus: This is the 32nd puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Place the digits in the indicated range (1-9) in some of the cells, so that no digit is repeated in any row or column. Numbers on the outside of the grid indicate the sums of adjacent digit groups in that row or column, in order. Each sum is separated by at least one unused cell.

Japanese Sums Example

Difficulty: 4.5 stars

Time Standards (highlight to view): Grandmaster = 7:15, Master = 20:00, Expert = 40:00

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

Note: Follow this link for other less common Number Placement puzzles.

TomTom (Twins) by Grant Fikes

TomTom by Grant Fikes

PDF

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

Theme: Signed by the Author

Author/Opus: This is the 352nd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard TomTom rules, using the integers 1-5. The two grids have the same numerical clues in the cages with the given operations (e.g. the sum of the upper-left cage in the top grid equals the product of the upper-left cage in the bottom grid). The value of all mathematical operations must be nonnegative integers.

Difficulty: 3 stars

Time Standards (highlight to view): Grandmaster = 3:45, Master = 4:45, Expert = 9:30

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

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