All the puzzles from last week have been grouped in this PDF.
Next week is a variety week with the following mix of puzzles (highlight to view):
Monday: Star Battle by Thomas Snyder
Tuesday: Tapa by Grant Fikes
Wednesday: TomTom by Grant Fikes
Thursday: Masyu Variation by Swaroop Guggilam
Friday: Cave by Thomas Snyder
Saturday: Killer Sudoku by Serkan Yürekli
The bonus puzzle for our high-level supporters will be a Snail Sudoku by Serkan Yürekli.
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: Clue Symmetry and Logic
Author/Opus: This is the 43rd puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Shade some dominoes (pairs of empty cells) black so that each number indicates the total count of white cells connected vertically and horizontally to that number including the numbered cell itself. Dominoes cannot share an edge, and all white cells must belong to a single connected group. Or see this example:
Answer String: Enter the length in cells of each of the white segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “23,15”.
Time Standards (highlight to view): Grandmaster = 6:45, Master = 9:00, Expert = 18:00
Solution: PDF
Note: Kuromasu is a new puzzle for us this week and we are curious to hear what you think of it.
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: Clue Symmetry and Logic
Author/Opus: This is the 42nd puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Shade some empty cells black so that each number indicates the total count of white cells connected vertically and horizontally to that number including the numbered cell itself. Black cells cannot share an edge, and all white cells must belong to a single connected group. Or see this example:
Answer String: Enter the length in cells of each of the white segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “14,221”.
Time Standards (highlight to view): Grandmaster = 5:15, Master = 8:00, Expert = 16:00
Solution: PDF; a solution video is available here.
Note: Kuromasu is a new puzzle for us this week and we are curious to hear what you think of it.
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: Consecutive Partners
Author/Opus: This is the 8th puzzle from guest contributor Murat Can Tonta.
Rules: Shade some dominoes (pairs of empty cells) black so that each number indicates the total count of white cells connected vertically and horizontally to that number including the numbered cell itself. Dominoes cannot share an edge, and all white cells must belong to a single connected group. Or see this example:
Answer String: Enter the length in cells of each of the white segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “23,15”.
Time Standards (highlight to view): Grandmaster = 4:00, Master = 5:30, Expert = 11:00
Solution: PDF
Note: Kuromasu is a new puzzle for us this week and we are curious to hear what you think of it.
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: Three Times Four …
Author/Opus: This is the 7th puzzle from guest contributor Murat Can Tonta.
Rules: Shade some dominoes (pairs of empty cells) black so that each number indicates the total count of white cells connected vertically and horizontally to that number including the numbered cell itself. Dominoes cannot share an edge, and all white cells must belong to a single connected group. Or see this example:
Answer String: Enter the length in cells of each of the white segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “23,15”.
Time Standards (highlight to view): Grandmaster = 2:45, Master = 3:30, Expert = 7:00
Solution: PDF
Note: Kuromasu is a new puzzle for us this week and we are curious to hear what you think of it.
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: Clue Symmetry and Logic
Author/Opus: This is the 191th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Shade some empty cells black so that each number indicates the total count of white cells connected vertically and horizontally to that number including the numbered cell itself. Black cells cannot share an edge, and all white cells must belong to a single connected group. Or see this example:
Answer String: Enter the length in cells of each of the white segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “14,221”.
Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:30, Expert = 7:00
Solution: PDF
Note: Kuromasu is a new puzzle for us this week and we are curious to hear what you think of it.
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: Almost Doubled
Author/Opus: This is the 190th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Shade some empty cells black so that each number indicates the total count of white cells connected vertically and horizontally to that number including the numbered cell itself. Black cells cannot share an edge, and all white cells must belong to a single connected group. Or see this example:
Answer String: Enter the length in cells of each of the white segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “14,221”.
Time Standards (highlight to view): Grandmaster = 2:00, Master = 2:30, Expert = 5:00
Solution: PDF
Note: Kuromasu is a new puzzle for us this week and we are curious to hear what you think of it.
All the puzzles from last week have been grouped in this PDF.
Next week will focus on Kuromasu puzzles with both regular puzzles and a “double” variation.
We’ve started gathering puzzles for The Art of Puzzles 2: Double Trouble, which like this coming week will feature some regular logic puzzles and “double” variations. If you are interested in contributing and haven’t already received details, please send us email at the link at the bottom of the page.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Logical (or to match an earlier puzzle: Zero X)
Author/Opus: This is the 127th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Statue Park rules. Note: there are just 11 pentominoes.
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 = 4:45, Master = 7:30, Expert = 15:00
Solution: PDF
Note: Follow this link for other Statue Park Puzzles. If you are new to this puzzle type, here are our easiest Statue Parks to get started on.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Fourteen Squares?
Author/Opus: This is the 126th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Variant of Skyscrapers rules. The numbers outside the grid represent the sum of the buildings seen in that row or column. For example, if a row is 1273456, the clue from the left would be an 10 (1+2+7) and from the right would be a 13 (6+7).
Answer String: Enter the 3rd row from left to right, followed by a comma, followed by the 5th row from left to right.
Time Standards (highlight to view): Grandmaster = 3:45, Master = 7:30, Expert = 15:00
Solution: PDF; a solution video is available here.
Note: Follow this link for classic Skyscrapers puzzles and this link for variations on Skyscrapers puzzles. If you are new to this puzzle type, here are our easiest Skyscrapers Puzzles to get started on.