PDF

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

Theme: Secret Sevens

Author/Opus: This is the 373rd puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Sudoku rules.

Difficulty: 2 stars

Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:30, Expert = 5:00

Solution: PDF and solving video.

Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.

PDF

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

Theme: Even Surrounded

Author/Opus: This is the 367th puzzle from our managing editor Serkan Yürekli.

Rules: Standard Sudoku rules, using the digits 1-6. 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: 1.5 stars

Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:30, Expert = 3:00

Solution: PDF and solving video.

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.

Our previous week of Slitherlink puzzles is gathered together in this PDF and the solutions are in this PDF. More Slitherlink puzzles can be found in these books in our store. All of our books feature original puzzles (not from the website), and buying these books is a great way to support the site while getting more fun logical challenges to solve.

The daily solution videos are on the posts and linked below:

Our next week of puzzles features four classic Sudoku and two variations. We’ll also have an interesting Arrow Sudoku / Thermo-Sudoku hybrid for a Sunday Stumper in seven days.