Yajilin by Grant Fikes

Yajilin by Grant Fikes

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Theme: Clue Symmetry and Logic

Author/Opus: This is the 195th 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 = 0:45, Master = 1:30, Expert = 3:00

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.

Killer Sudoku by Serkan Yürekli

Killer Sudoku by Serkan Yürekli

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Theme: The Last Ones (for patron Randiman Rogers; all cages end in 1, and symmetric clues add to 11)

Author/Opus: This is the 100th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Sudoku rules. Also, the sum of the numbers in each cage must equal the value given in the upper-left corner of that cage. Numbers cannot repeat inside a cage.

Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 9th row from left to right.

Time Standards (highlight to view): Grandmaster = 10:00, Master = 25:00, Expert = 50:00

Solution: PDF; a solution video is available here.

Note: Follow this link for more Killer Sudoku and this link for classic Sudoku. More Killer Sudoku puzzles can be found in Killer Sudoku by Serkan Yürekli.

Nurikabe by Prasanna Seshadri

Nurikabe by Prasanna Seshadri

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Theme: Daniel Cohen (alphanumeric conversion of top/bottom rows; i.e., 4=D, 1=A, 14=N, …)

Author/Opus: This is the 117th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Nurikabe rules.

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 at the top. Separate each row’s entry from the next with a comma.

Time Standards (highlight to view): Grandmaster = 6:15, Master = 11:30, Expert = 23:00

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 by Thomas Snyder

Star Battle by Thomas Snyder

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Theme: Phleb (for patron Paul Hlebowitsh)

Author/Opus: This is the 237th puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Star Battle rules. Two stars per row, column, and region.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators. Enter both digits of any two-digit column number.

Time Standards (highlight to view): Grandmaster = 2:45, Master = 4:45, Expert = 9:30

Solution: PDF

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

Pentominous by Grant Fikes

Pentominous by Grant Fikes

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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 letter entry mode.)

Theme: Clue Symmetry and Logic

Author/Opus: This is the 194th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Pentominous rules.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 3:15, Master = 6:00, Expert = 12:00

Solution: PDF

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

Pentominous by Grant Fikes

Pentominous by Grant Fikes

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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 letter entry mode.)

Theme: Logical

Author/Opus: This is the 193rd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Pentominous rules.

Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right or from top to bottom, separating the groups with a comma. Use CAPITAL LETTERS!

Time Standards (highlight to view): Grandmaster = 2:45, Master = 4:00, Expert = 8:00

Solution: PDF

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

Ripple Effect by Grant Fikes

Ripple Effect by Grant Fikes

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Theme: Logical

Author/Opus: This is the 192nd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Place a number into each cell so that each region contains the numbers 1 to N, where N is the size of the region. A cell with the number M must have at least M cells between it and any other instance of the same number M in that row or column.

Answer String: Enter the numbers in the 6th row from left to right, followed by a comma, followed by the 8th row from left to right.

Time Standards (highlight to view): Grandmaster = 3:45, Master = 5:45, Expert = 11:30

Solution: PDF; a solution video is available here.

Ripple Effect by Grant Fikes

Ripple Effect by Grant Fikes

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

Theme: Clueless

Author/Opus: This is the 191st puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Place a number into each cell so that each region contains the numbers 1 to N, where N is the size of the region. A cell with the number M must have at least M cells between it and any other instance of the same number M in that row or column.

Answer String: Enter the numbers in the 1st row from left to right, followed by a comma, followed by the 3rd row from left to right.

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

Solution: PDF

TomTom by Grant Fikes

TomTom by Grant Fikes

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Theme: Dozen Dominoes

Author/Opus: This is the 190th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard TomTom rules, using the integers 1-6.

Answer String: Enter the 3rd row from left to right followed by the 4th row from left to right. Separate the entries with a comma.

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

Solution: PDF

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

TomTom by Grant Fikes

TomTom by Grant Fikes

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Theme: Shutter

Author/Opus: This is the 189th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard TomTom rules, using the integers 1-5.

Answer String: Enter the 1st column from top to bottom followed by the 2nd column from top to bottom. Separate the entries 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 TomTom. If you are new to this puzzle type, here are our easiest TomTom to get started on.