Snake Pit by Carl Worth

Snake Pit by Carl Worth

PDF

Example puzzle as 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 17th puzzle from our newest contributing puzzlemaster Carl Worth.

Rules: (Hybrid of Fillomino and Snake Puzzles.) Divide the grid along the boundary lines so that every cell belongs to a snake. A snake is a one-cell-wide path at least two cells long that does not touch itself, not even diagonally. Circled cells must be at one of the ends of a snake. A snake may contain one circled cell, two circled cells, or no circled cells at all. Numbered cells must be part of a snake with a length of exactly that number of cells. A snake may contain one number, multiple identical numbers, or no numbers at all. Two snakes of the same length cannot touch each other horizontally or vertically.

Also see this example:

Snake Pit by Carl Worth

Answer String: For each cell in the marked rows/columns, enter the length of the snake it belongs to. Enter just the last digit for any two-digit number. This example has the key “35522,44462”.

Time Standards (highlight to view): Grandmaster = 7:00, Master = 16:00, Expert = 32:00

Solution: PDF

Note: Follow these link for other Fillomino or Snake puzzles.

Snake Pit by Carl Worth

Snake Pit by Carl Worth

(view directly for a larger image)

PDF

Example puzzle as 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 16th puzzle from our newest contributing puzzlemaster Carl Worth.

Rules: (Hybrid of Fillomino and Snake Puzzles.) Divide the grid along the boundary lines so that every cell belongs to a snake. A snake is a one-cell-wide path at least two cells long that does not touch itself, not even diagonally. Circled cells must be at one of the ends of a snake. A snake may contain one circled cell, two circled cells, or no circled cells at all. Numbered cells must be part of a snake with a length of exactly that number of cells. A snake may contain one number, multiple identical numbers, or no numbers at all. Two snakes of the same length cannot touch each other horizontally or vertically.

Also see this example:

Snake Pit by Carl Worth

Answer String: For each cell in the marked rows/columns, enter the length of the snake it belongs to. Enter just the last digit for any two-digit number. This example has the key “35522,44462”.

Time Standards (highlight to view): Grandmaster = 10:15, Master = 14:30, Expert = 29:00

Solution: PDF

Note: Follow these link for other Fillomino or Snake puzzles.

Letter Pairs by Serkan Yürekli

Letter Pairs by Serkan Yürekli

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PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a letter entry mode and a shading mode to mark off the clues.)

Theme: Game of Letters (for Daniel Cohen)

Author/Opus: This is the 142nd puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Place the 18 names into the grid, one letter per cell, so they can be read from left to right or from top to bottom, without crossing or overlapping each other. Treat the first and last names as separate entries. A dot between two cells indicates that both cells must contain the same letter. All possible dots are given.

Answer String: For each row from top to bottom, enter the number of unused cells in that row.

Time Standards (highlight to view): Grandmaster = 9:00, Master = 14:30, Expert = 29:00

Solution: PDF

Note: Follow this link for other word puzzles.

Kakuro (Irregular) by Grant Fikes

Kakuro by Grant Fikes

PDF

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

Theme: Octets (for Randy Rogers)

Author/Opus: This is the 226th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Kakuro rules. Also, digits do not repeat within the red bold regions. (The shading is used to help distinguish the regions as well.)

Answer String: Enter the values in each cell in the 2nd row from left to right and then in the 9th column from top to bottom, separating the two entries with a comma. Ignore black cells.

Time Standards (highlight to view): Grandmaster = 7:15, Master = 11:00, Expert = 22:00

Solution: PDF

Note: Follow this link for other Kakuro puzzles. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli.

Fillomino (Kropki) by Prasanna Seshadri

Fillomino 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 number entry mode.)

Theme: Almost Antisymmetric

Author/Opus: This is the 143rd puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Fillomino rules. Also, if there is a white dot between two adjacent cells, then those cells must contain numbers that differ by one. If there is a black dot between two adjacent cells, then one of the numbers must be twice the other. Either a white or black dot can separate 1 and 2. All possible dots are given (i.e., no unmarked borders can have numbers that differ by 1 or have a quotient of 2).

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 8th row.

Time Standards (highlight to view): Grandmaster = 8:45, Master = 13:30, Expert = 27:00

Solution: PDF; a solution video is available here.

Note: Follow this link for other classic Fillomino and this link for more variations on Fillomino puzzles. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on. More Fillomino puzzles can be found in The Art of Puzzles and in Fill o’ Fillomino by Grant Fikes.

Skyscrapers (2 in 1) by Prasanna Seshadri

Skyscrapers by Prasanna Seshadri

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PDF

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

Theme: Sevens

Author/Opus: This is the 142nd puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Skyscrapers Rules, with two grids at the bottom to solve. The top grid indicates the sum of the digits in the bottom two grids in the corresponding positions.

Answer String: For the rightmost grid, enter the 4th row from left to right, followed by a comma, followed by the 6th row from left to right.

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

Solution: PDF

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

Statue Park by Murat Can Tonta

Statue Park by Murat Can Tonta

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PDF

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

Theme: Black Hole Sun

Author/Opus: This is the 51st puzzle from our contributing puzzlemaster Murat Can Tonta.

Rules: Standard Statue Park 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 = 6:30, Master = 11:15, Expert = 22:30

Solution: PDF; a solution video is available here.

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.

Consecutive Pairs Sudoku by Thomas Snyder

Consecutive Pairs Sudoku by Thomas Snyder

PDF

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

Theme: Eleven (for 11/11)

Author/Opus: This is the 256th puzzle from Thomas Snyder aka Dr. Sudoku.

Rules: Standard Consecutive Pairs Sudoku rules. (If a gray circle is given between two adjacent cells, then the two numbers in those cells must be consecutive. Note not all gray circles are given; adjacent cells without a circle may contain either consecutive numbers or nonconsecutive numbers.)

Answer String: Enter the 3rd row from left to right, followed by a comma, followed by the 6th row from left to right.

Time Standards (highlight to view): Grandmaster = 6:15, Master = 8:00, Expert = 16:00

Solution: PDF

Note: Follow this link for Consecutive Pairs Sudoku puzzles on this website. If you are new to this puzzle type, here are our easiest Consecutive Pairs Sudoku to get started on. More Consecutive Pairs Sudoku puzzles can be found in The Art of Sudoku 2.

Minesweeper (Even Rows/Columns) by Serkan Yürekli

Minesweeper by Serkan Yürekli

PDF

or solve online (using our beta test of Penpa-Edit tools. Use left click to place mine, right click (in cell) to mark unused, right click (on edge/corner) to mark a note; hitting tab will also enable a shading mode. If you want more solving options, turn off Penpa-Lite option.)

Theme: Clue Symmetry and Logic

Author/Opus: This is the 139th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Place a mine into some of the empty cells so that each number represents the total count of mines in neighboring cells, including diagonally adjacent cells. Also, an even number of mines must be placed in each row and in each column.

Answer String: Enter the length in cells of each group of consecutive cells with mines 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 = 10:30, Master = 15:00, Expert = 30:00

Solution: PDF; a solution video is available here.

Nanro (Even Rows/Columns) by Prasanna Seshadri

Nanro by Prasanna Seshadri

PDF

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 137th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Nanro rules. Also, an even number of cells must be filled with a number in each row and in each column.

Answer String: Enter the length in cells of each of the segments labeled with numbers 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 = 7:30, Master = 9:30, Expert = 19:00

Solution: PDF

Note: Follow this link for other Nanro variations and this link for classic Nanro. If you are new to this puzzle type, please first try out our easiest Nanro to get started.