Author/Opus: This is the 321st puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Masyu rules.
Difficulty: 2.5 stars
Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:45, Expert = 3:30
Solution: PDF
Note: Follow this link for other classic Masyu. If you are new to this puzzle type, here are our easiest Masyu to get started on. More Masyu puzzles can be found in The Art of Puzzles and in our beginner-friendly book Logic Puzzles 101.
Theme: Dynamite Walls
Author/Opus: This is the 320th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Variation of Pentominous rules. Some borders between pentominoes are already drawn.
Difficulty: 3.5 stars
Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:45, Expert = 11:30
Solution: PDF
Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on. More Pentominous puzzles can be found in the Plenty o’ Pentominous series by Grant Fikes and Murat Can Tonta and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.
Theme: Stuck Z
Author/Opus: This is the 319th puzzle from our contributing puzzlemaster Grant Fikes.
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.
Difficulty: 3.5 stars
Time Standards (highlight to view): Grandmaster = 4:00, Master = 6:15, Expert = 12:30
Solution: PDF; a solution video is also available here.
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.
Theme: Logical
Author/Opus: This is the 318th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Masyu rules.
Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 0:30, Master = 0:40, Expert = 1:20
Solution: PDF
Note: Follow this link for other classic Masyu. If you are new to this puzzle type, here are our easiest Masyu to get started on. More Masyu puzzles can be found in The Art of Puzzles and in our beginner-friendly book Logic Puzzles 101.
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Theme: Logical
Author/Opus: This is the 317th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Masyu rules.
Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 0:30, Master = 0:40, Expert = 1:20
Note: Follow this link for other classic Masyu. If you are new to this puzzle type, here are our easiest Masyu to get started on. More Masyu puzzles can be found in The Art of Puzzles and in our beginner-friendly book Logic Puzzles 101.
Theme: Logical
Author/Opus: This is the 316th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Masyu rules.
Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 0:35, Master = 0:45, Expert = 1:30
Solution: PDF
Note: Follow this link for other classic Masyu. If you are new to this puzzle type, here are our easiest Masyu to get started on. More Masyu puzzles can be found in The Art of Puzzles and in our beginner-friendly book Logic Puzzles 101.
Theme: Clue Symmetry and Logic
Author/Opus: This is the 315th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Tapa 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 = 0:45, Master = 1:00, Expert = 2:00
Solution: PDF
Note: Follow this link for classic Tapa and this link for Tapa variations. 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, in Tapa and Variations, and in our beginner-friendly collection Intro to GMPuzzles, all by Serkan Yürekli.