PDF

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 105th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Fill the grid with digits from the indicated range (1 to n) so that no digit is repeated within a row or column. Number clues in the grid indicate the difference between the largest and smallest digits in the visible cells (i.e., going from the clue until hitting an edge or another triangled cell). If there is only one visible cell, the clue number indicates the digit itself.

Answer String: Enter the digits in the 4th row from left to right, followed by a comma, followed by the 10th column from top to bottom. Ignore the triangled cells.

Time Standards (highlight to view): Grandmaster = 4:00, Master = 5:45, Expert = 11:30

Solution: PDF

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

PDF

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 104th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Fill the grid with digits from the indicated range (1 to n) so that no digit is repeated within a row or column. Number clues in the grid indicate the difference between the largest and smallest digits in the visible cells (i.e., going from the clue until hitting an edge or another triangled cell). If there is only one visible cell, the clue number indicates the digit itself.

Answer String: Enter the digits in the 7th row from left to right, followed by a comma, followed by the 4th column from top to bottom. Ignore the triangled cells.

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:00, Expert = 4:00

Solution: PDF

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

PDF

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 103rd puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Fill the grid with digits from the indicated range (1 to n) so that no digit is repeated within a row or column. Number clues in the grid indicate the difference between the largest and smallest digits in the visible cells (i.e., going from the clue until hitting an edge or another triangled cell). If there is only one visible cell, the clue number indicates the digit itself.

Answer String: Enter the digits in the 5th row from left to right, followed by a comma, followed by the 4th column from top to bottom. Ignore the triangled cells.

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:00, Expert = 4:00

Solution: PDF

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

PDF

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 102nd puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Fill the grid with digits from the indicated range (1 to n) so that no digit is repeated within a row or column. Number clues in the grid indicate the difference between the largest and smallest digits in the visible cells (i.e., going from the clue until hitting an edge or another triangled cell). If there is only one visible cell, the clue number indicates the digit itself.

Answer String: Enter the digits in the 7th row from left to right, followed by a comma, followed by the 5th column from top to bottom. Ignore the triangled cells.

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

Solution: PDF

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

PDF

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

Theme: Clue Symmetry and Logic

Author/Opus: This is the 101st puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Fill the grid with digits from the indicated range (1 to n) so that no digit is repeated within a row or column. Number clues in the grid indicate the difference between the largest and smallest digits in the visible cells (i.e., going from the clue until hitting an edge or another triangled cell). If there is only one visible cell, the clue number indicates the digit itself.

Answer String: Enter the digits in the 4th row from left to right, followed by a comma, followed by the 6th column from top to bottom. Ignore the triangled cells.

Time Standards (highlight to view): Grandmaster = 0:30, Master = 0:45, Expert = 1:30

Solution: PDF

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

PDF

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

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 digits in each cage must equal the value given in the upper-left corner of that cage. Digits 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.

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)

Theme: Bottle (made for Chris Green)

Author/Opus: This is the 99th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Tapa rules. Also, if two cells are separated by a thick border, this means that exactly one of those cells is shaded and the other is unshaded.

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 = 2:45, Master = 5:30, Expert = 11:00

Solution: PDF

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

PDF

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

Theme: Symmetry and Logic

Author/Opus: This is the 98th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Isodoku rules, using numbers 1-8.

Answer String: Enter the 5th “row” from left to right, followed by a comma, followed by the 7th “row” from left to right.

Time Standards (highlight to view): Grandmaster = 3:30, Master = 4:15, Expert = 8:30

Solution: PDF

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

(view directly for a larger image)

PDF

or solve online (using our beta test of Penpa-Edit tools; note that the dotted circles are just for answer entry and are where the number should be placed in the 2×2 cell. An alternate option with centralized digit entry is here.)

Theme: Heart

Author/Opus: This is the 97th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Variation of Kakuro: Enter a single digit from 1 to 9 into each cell so that the sum of digits in each Across entry equals the value given to the left of the entry, and the sum of digits in each Down entry equals the value given above the entry. The gray (2×2) cells are to be filled by a single digit which sits in multiple rows and columns. No digit may be repeated within a single entry, regardless of if it is in a small or large cell.

Answer String: Enter the values in each cell in the marked rows from left to right, separating the rows with a comma. Ignore black cells.

Time Standards (highlight to view): Grandmaster = 13:00, Master = 22:30, Expert = 45:00

Solution: PDF; a solution video is available here.

Note: Follow this link for other Kakuro puzzles.

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a number entry mode and a composite mode where left click inside cell shades square, left click + drag draws line segment, right click inside cell adds dot, and right click on cell edge adds an x.)

Theme: Clue Symmetry and Logic

Author/Opus: This is the 95th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Fill in every circle inside and outside the grid with a prime number. (All prime numbers inside and outside the grid are marked.) Then locate a numbered snake (a 1-cell wide path) that starts with 1 and goes to 45 (1 to 11 in example). The snake cannot touch itself, not even diagonally. Digits outside the grid indicate how many cells in that row or column are occupied by the snake.

Answer String: Enter the length in cells of each of the snake segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. The answer to the example is “3,11”.

Time Standards (highlight to view): Grandmaster = 3:45, Master = 5:30, Expert = 11:00

Solution: PDF

Note: Follow this link for other Snake puzzles.