or solve online (using our beta test of Penpa-Edit tools)
Theme: Don’t Worry
Author/Opus: This is the 371st puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Isodoku rules, using numbers 1-8.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00
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.
or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between Sudoku = big entries and Number candidate = small entries in the corners of cells.)
Theme: Undivided
Author/Opus: This is the 313th puzzle from our managing editor Serkan Yürekli.
Rules: Standard Tight Fit Sudoku rules. Remember, the smaller number goes above the larger number in all slashed cells. The range of this puzzle is 1-9.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:20, Master = 1:45, Expert = 3:30
Solution: PDF
Note: Follow this link for other Tight Fit Sudoku puzzles on this website. If you are new to this puzzle type, here are our easiest Tight Fit Sudoku to get started on. More Tight Fit Sudoku can be found in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli, in The Art of Sudoku 2, and in Masterpiece Sudoku Mix 5: Tight Fit Sudoku.
or solve online (using our beta test of Penpa-Edit tools)
Theme: 2020 2021
Author/Opus: This is the 195th puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Standard Yajilin rules.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:30, Expert = 3:00
Solution: PDF; a solution video is also available here.
Note: Follow this link for classic Yajilin and this link for Yajilin variations. If you are new to this puzzle type, here are our easiest Yajilin to get started on. More Yajilin puzzles can be found in The Art of Puzzles 2, in Yajilin by Murat Can Tonta and Prasanna Seshadri, and in our beginner-friendly book Logic Puzzles 101.
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: Reciprocity
Author/Opus: This is the 334th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Fillomino rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:00, Master = 2:00, Expert = 4:00
Solution: PDF
Note: Follow this link for classic Fillomino and this link for Fillomino variations. 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, in Fill o’ Fillomino and Fill o’ Fillomino 2 by Grant Fikes, and in our beginner-friendly books Logic Puzzles 101 and Starter Pack 1: Fillomino.
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: Even/Odd
Author/Opus: This is the 186th puzzle from our contributing puzzlemaster Murat Can Tonta.
Rules: Standard Fillomino rules.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:30, Expert = 3:00
Solution: PDF
Note: Follow this link for classic Fillomino and this link for Fillomino variations. 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, in Fill o’ Fillomino and Fill o’ Fillomino 2 by Grant Fikes, and in our beginner-friendly book Logic Puzzles 101.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Tetromino LITS
Author/Opus: This is the 310th puzzle from our managing editor Serkan Yürekli.
Rules: Standard LITS rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:15, Expert = 4:30
Solution: PDF
Note: Follow this link for classic LITS and this link for LITS variations. If you are new to this puzzle type, here are our easiest LITS to get started on. More LITS puzzles can be found in LOTS O’ LITS by Grant Fikes and Prasanna Seshadri, in The Art of Puzzles 2, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Pentomino LITS
Author/Opus: This is the 369th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard LITS rules.
Difficulty: 1 star
Time Standards (highlight to view): Grandmaster = 0:45, Master = 1:10, Expert = 2:20
Solution: PDF
Note: Follow this link for classic LITS and this link for LITS variations. If you are new to this puzzle type, here are our easiest LITS to get started on. More LITS puzzles can be found in LOTS O’ LITS by Grant Fikes and Prasanna Seshadri, in The Art of Puzzles 2, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Square Space
Author/Opus: This is the 333rd puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Star Battle rules. Two stars per row, column, and region.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:15, Expert = 4:30
Solution: PDF
Note: Follow this link for other classic Star Battles and this link for Star Battle variations. If you are new to this puzzle type, here are our easiest Star Battles to get started on. More Star Battle puzzles can be found in The Art of Puzzles, in the book Star Battle by JinHoo Ahn, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Overgrown Region
Author/Opus: This is the 309th puzzle from our managing editor Serkan Yürekli.
Rules: Standard Star Battle rules. Two stars per row, column, and region.
Difficulty: 1.5 stars
Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:45, Expert = 3:30
Solution: PDF
Note: Follow this link for other classic Star Battles and this link for Star Battle variations. If you are new to this puzzle type, here are our easiest Star Battles to get started on. More Star Battle puzzles can be found in The Art of Puzzles, in the book Star Battle by JinHoo Ahn, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Five Rooms
Author/Opus: This is the 367th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Kakuro Rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:20, Master = 1:45, Expert = 3:30
Solution: PDF
Note: Follow this link for classic Kakuro and this link for Kakuro variations. More Kakuro puzzles can be found in Kakuro and Variations by Serkan Yürekli and in The Art of Puzzles 2.