Tapa by Serkan Yürekli

Tapa by Serkan Yürekli

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Theme: Question Marks

Author/Opus: This is the 171st puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Tapa rules. Each question mark must stand for some positive integer, and will combine with any other questions marks in that cell to form a typical Tapa clue.

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 = 3:15, Master = 5:00, Expert = 10:00

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. More Tapa puzzles can be found in The Art of Puzzles and in Tapa and Variations, both by Serkan Yürekli.

Battleships (Unknown Fleet) by Serkan Yürekli

Battleships by Serkan Yürekli

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Theme: Question Mark

Author/Opus: This is the 170th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Variation of Battleships. Locate an unknown fleet of 1-cell wide ships into the grid. Each segment of a ship occupies a single cell, and ships do not touch each other, even diagonally. Some sea cells, without any ship segments, are given in the grid. Numbers on the right and bottom edges of the grid reveal the number of ship segments in that row or column. Numbers on the top and left of the grid indicate the number of distinct ships in that row or column.

See also this example:

Battleships by Serkan Yürekli

Answer String: For each row from top to bottom, enter the number of the first column from the left where a ship segment appears (enter just the last digit for any two-digit number). If the row is empty, enter 0. Enter these numbers as a single string with no separators.

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

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

Tapa (Transparent) by Serkan Yürekli [Bonus]

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Tapa by Serkan Yürekli

Theme: Clue Symmetry and Logic

Author/Opus: This is the 169th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Variation of Tapa rules. The wall can travel through clue cells. Each clue now describes the entire 3×3 area the clue cell is in the middle of.

See also this example:

Tapa by Prasanna Seshadri

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 = 2:15, Master = 3:45, Expert = 7:30

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. More Tapa puzzles can be found in The Art of Puzzles and in Tapa and Variations, both by Serkan Yürekli.

Killer Sudoku by Serkan Yürekli

Killer Sudoku by Serkan Yürekli

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Theme: Clue Symmetry and Logic (Originally on 2017 Brand’s Sudoku Open)

Author/Opus: This is the 168th 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 3rd row from left to right, followed by a comma, followed by the 7th row from left to right.

Time Standards (highlight to view): Grandmaster = 7:00, Master = 12:00, Expert = 24:00

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

Shape Sudoku by Serkan Yürekli

Sudoku by Serkan Yürekli

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Theme: Four Squares (Originally on 2017 Brand’s Sudoku Open)

Author/Opus: This is the 167th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Sudoku rules. Also, there are some numbered shapes that must be put into the grid. Shapes can be rotated, but cannot be reflected.

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 = 4:15, Master = 11:45, Expert = 23:30

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

Even/Odd Sudoku by Serkan Yürekli

Sudoku by Serkan Yürekli

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Theme: Alternating Stripes (Originally on 2017 Brand’s Sudoku Open)

Author/Opus: This is the 166th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Sudoku rules. Also, cells with a square contain an even digit; cells with a circle contain an odd digit.

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

Time Standards (highlight to view): Grandmaster = 3:45, Master = 6:00, Expert = 12:00

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

Kakuro by Serkan Yürekli

Kakuro by Serkan Yürekli

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Theme: Hidden

Author/Opus: This is the 165th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Kakuro Rules.

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

Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:00, Expert = 10:00

Note: Follow this link for other Kakuro puzzles. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli. Kakuro will also be featured in the upcoming The Art of Puzzles 2.