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Theme: Clue Symmetry and Logic (for patron Phleb)

Author/Opus: This is the 122nd puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Sudoku rules. Also, identical digits cannot be in diagonally-adjacent cells.

Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 5th row from left to right.

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

Solution: PDF

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.

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Theme: X-Box

Author/Opus: This is the 8th puzzle from guest contributor Swaroop Guggilam.

Rules: Standard Thermo-Sudoku rules.

Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 8th row from left to right.

Time Standards (highlight to view): Grandmaster = 6:30, Master = 13:00, Expert = 26:00

Solution: PDF; a solution video is available here.

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

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Theme: Weightlifter

Author/Opus: This is the 115th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Thermo-Sudoku rules.

Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 6th column from top to bottom.

Time Standards (highlight to view): Grandmaster = 5:30, Master = 8:30, Expert = 17:00

Solution: PDF

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

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Theme: Bob Marley

Author/Opus: This is the 114th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Arrow Sudoku rules.

Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 5th row from left to right.

Time Standards (highlight to view): Grandmaster = 6:00, Master = 7:45, Expert = 15:30

Solution: PDF

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

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Theme: Clue Symmetry and Logic

Author/Opus: This is the 128th puzzle from our contributing puzzlemaster Prasanna Seshadri.

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 = 4:00, Master = 6:00, Expert = 12:00

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.

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Theme: Clue Symmetry and Logic

Author/Opus: This is the 127th puzzle from our contributing puzzlemaster Prasanna Seshadri.

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 = 2:30, Master = 4:00, Expert = 8:00

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.

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Theme: Donington Park Circuit

Author/Opus: This is the 113th puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Standard Arrow Sudoku rules.

Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 5th row from left to right.

Time Standards (highlight to view): Grandmaster = 3:00, Master = 3:30, Expert = 7:00

Solution: PDF

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

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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 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.

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Theme: Clown Face

Author/Opus: This is the 12th puzzle from guest contributor Hans van Stippent.

Rules: Standard Thermo-Sudoku rules. Also, the bulbs are missing from three of the thermometer shapes. These bulbs were positioned at one of the open ends of those thermometers.

Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 5th row from left to right.

Time Standards (highlight to view): Grandmaster = 7:00, Master = 9:00, Expert = 18:00

Solution: PDF

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

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Theme: Question Marks

Author/Opus: This is the 1st puzzle from guest contributor Rajesh Kumar.

Rules: Standard Arrow Sudoku rules.

Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 8th row from left to right.

Time Standards (highlight to view): Grandmaster = 7:00, Master = 13:30, Expert = 27:00

Solution: PDF; a solution video is available here.

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