Tapa-Like Loop by Prasanna Seshadri

Tapa-like Loop by Prasanna Seshadri

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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 on edges)

Theme: 1 to 8

Author/Opus: This is the 30th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: In this variation of Tapa, the wall is in the form of a single non-intersecting loop. Clues inside the grid represent the number of neighboring cells visited by the loop; if there is more than one number in a cell, each number should be represented with a separate loop segment. There is no 2×2 rule of Tapa in this puzzle. This example image should help:

Tapa-like Loop Example by Serkan Yürekli

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. Separate each row’s entry with a comma. For the example, this would be “11,12”.

Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:30, Expert = 5:00

Solution: PDF

Note: Follow this link for other Tapa-Like Loop puzzles. If you are new to this puzzle type, here are our easiest Tapa puzzles to get started on.

Nurikabe by Grant Fikes

Nurikabe by Grant Fikes

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

Theme: Stanyon Count (The Stanyon Count, a variation of and predecessor to the Elmsley Count, is a card sleight in magic tricks that makes 3 cards appear to be 4 cards; in this puzzle, 3 can become 4 and still be solved.)

Author/Opus: This is the 110th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Nurikabe rules. There are two puzzles to solve.

Answer String: Enter the length in cells of each of the black segments (the unnumbered, connected “ocean”) from left to right for the marked rows, starting with the top grid and then the bottom grid. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:30, Expert = 7:00 – Note these time standards are for finishing both puzzles.

Solution: PDF

Note: Follow this link for other classic Nurikabe. If you are new to this puzzle type, here are our easiest Nurikabes to get started on.

Star Battle to Masyu Relay by Prasanna Seshadri

Star Battle by Prasanna Seshadri

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or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a shape/star placement mode and linex mode where left click+drag draws lines and right click marks X’s)

Theme: Relay of Logic

Author/Opus: This is the 28th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Star Battle rules (ignore the shading). Then turn every star in a gray region into a black circle and every star in a white region into a white circle, and solve again as a standard Masyu puzzle. Ignore the region boundaries when drawing the Masyu loop.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other classic Star Battles and this link for other classic Masyu.

LITS by Craig Kasper

LITS by Craig Kasper

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

Theme: Logical

Author/Opus: This is the 3rd puzzle from guest contributor Craig Kasper, who also contributed these two Sunday Surprises. Craig has recently started a new puzzle blog.

Rules: Standard LITS rules.

Answer String: Enter the length in cells of each of the shaded segments from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00

Solution: PDF; a solution video is available here.

Note: Follow this link for other classic LITS. If you are new to this puzzle type, here are our easiest LITS to get started on.

Tapa-Like Loop by Prasanna Seshadri

Tapa-like 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 on edges)

Theme: Logical

Author/Opus: This is the 26th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: In this variation of Tapa, the wall is in the form of a single non-intersecting loop. Clues inside the grid represent the number of neighboring cells visited by the loop; if there is more than one number in a cell, each number should be represented with a separate loop segment. There is no 2×2 rule of Tapa in this puzzle. This example image should help:

Tapa-like Loop Example by Serkan Yürekli

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. Separate each row’s entry with a comma. For the example, this would be “11,12”.

Time Standards (highlight to view): Grandmaster = 0:45, Master = 1:40, Expert = 3:20

Solution: PDF

Note: Follow this link for other Tapa-Like Loop puzzles. If you are new to this puzzle type, here are our easiest Tapa puzzles to get started on.

Yajilin by Grant Fikes

Yajilin by Grant Fikes

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 106th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Yajilin rules.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.

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

Solution: PDF

Note: Follow this link for other classic Yajilin. If you are new to this puzzle type, here are our easiest Yajilin to get started on.

Fillomino by Walker Anderson

Fillomino by Walker Anderson

PDF

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 number entry mode.)

Theme: Clue Symmetry and Logic

Author/Opus: This is the 1st puzzle from guest contributor Walker Anderson. You can find more of Walker’s puzzles on his relatively new blog site.

Rules: Standard Fillomino rules.

Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Enter just the last digit for any two-digit number. Start with the 2nd row, followed by a comma, followed by the 9th row.

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

Solution: PDF

Note: Follow this link for other classic Fillomino. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on.

Araf by Serkan Yürekli

Araf by Serkan Yürekli

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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: Fource Field

Author/Opus: This is the 46th puzzle from our contributing puzzlemaster Serkan Yürekli.

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. Each region must have an area that is strictly between those numbers (This means, for two number clues A and B with A < B, the area C fulfills A < C < B).

Araf Example

Answer String: Enter the number of cells in each connected group (between bold lines) in the marked rows. For the example above, this is “34,121111,4111”.

Time Standards (highlight to view): Grandmaster = 2:45, Master = 5:00, Expert = 10:00

Solution: PDF; a solution video is available here.

Note: Araf is a relatively new puzzle for us on GMPuzzles. Follow this link for other Araf.

Araf (Inequality) by Prasanna Seshadri

Araf by Prasanna Seshadri

PDF

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: Clue Symmetry and Logic

Author/Opus: This is the 23rd puzzle from our contributing puzzlemaster Prasanna Seshadri.

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 those numbers. Answer String: Enter the number of cells in each connected group (between bold lines) in the marked rows. Separate the rows with a comma.

Time Standards (highlight to view): Grandmaster = 3:00, Master = 4:45, Expert = 9:30

Solution: PDF

Note: Araf is a relatively new puzzle for us on GMPuzzles. Follow this link for other Araf. An example image for a “classic” Araf puzzle is here.

Dominion by Serkan Yürekli

Dominion by Serkan Yürekli

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

Theme: C Sharp

Author/Opus: This is the 43rd puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Shade some empty cells black to form a set of dominoes (1×2 rectangles) that divides the grid into white regions; the dominoes cannot overlap or share an edge. Each region must contain exactly one type of given letter, and must also contain all instances of that letter (i.e. there cannot be two regions that contain C). See also this example:

Dominion by Serkan Yürekli

Answer String: Enter the length of the unshaded segments in order in the marked rows/columns. Separate the groups with a comma. For this example, the answer is “25,132”

Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:30, Expert = 11:00

Solution: PDF