or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)
Theme: Framed
Rules: Standard Slitherlink rules.
Answer String: Enter the length in cells of each of the internal loop segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 1:00, Master = 1:45, Expert = 3:30
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools)
Theme: Rope
Rules: Standard Even/Odd Sudoku rules (i.e., cells with a square contain an even digit; cells with a circle contain an odd digit).
Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 4th row from left to right.
Time Standards (highlight to view): Grandmaster = 0:50, Master = 1:15, Expert = 2:30
Solution: PDF
Note: Follow this link for more Even/Odd Sudoku puzzles. If you are new to this puzzle type, here are our easiest Even/Odd Sudoku to get started on. More Even/Odd Sudoku puzzles can be found in The Art of Sudoku 2.
or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)
Theme: Unfriendly Neighbors
Rules: Standard Slitherlink rules. Also, there are some sheep (marked S) that must be inside the loop and some wolves (marked W) that must be outside the loop.
Answer String: Enter the length in cells of each of the internal loop segments following the arrows for the marked rows, starting at the top. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 2:15, Master = 3:00, Expert = 6:00
Solution: PDF
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: 28 dice again: opus #5 in Grant’s series with just 28 “dice” givens.
Rules: Standard Fillomino rules.
Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Start with the 5th row, followed by a comma, followed by the 6th row.
Time Standards (highlight to view): Grandmaster = 1:20, Master = 2:00, Expert = 4:00
Solution: PDF
Note: Follow this link for other classic Fillomino and this link for more variations on Fillomino puzzles. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on.
or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the linex mode where left click+drag draws lines and right click marks X’s)
Theme: Lines
Answer String: Enter the length in cells of each of the cave segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00
Solution: PDF
Note: Follow this link for other classic Caves. If you are new to this puzzle type, here are our easiest Cave Puzzles to get started on.
or solve online (using our beta test of Penpa-Edit tools)
Theme: Two Rings
Answer String: Enter the 5th row from left to right, followed by a comma, followed by the 5th column from top to bottom.
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:15, Expert = 4:30
Solution: PDF
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.
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 letter entry mode.)
This is a “Twisted Tuesday” puzzle variation.
Theme: Logical
Rules: Variation of Fillomino rules where regions with the same shape must avoid each other instead of regions with the same size (all regions in a pentominous puzzle are pentominoes).
Specifically, divide the grid into 20 pentominoes so that no two pentominoes of the same shape (including rotations/reflections) share an edge. A cell with a letter in it must be part of the pentomino shape normally associated with that letter as given below the grid. Not all pentomino shapes need appear.
Answer String: Enter the letter associated with the pentomino occupying each cell in the two marked rows from left to right, separating the rows with a comma. Use CAPITAL LETTERS!
Time Standards (highlight to view): Grandmaster = 2:00, Master = 4:30, Expert = 9:00
Solution: PDF
Note: Follow this link for other puzzles involving Pentominoes.
or solve online (using our beta test of Penpa-Edit tools in linex mode where left click+drag draws lines and right click marks X’s)
Theme: Logical theme encountered during the solve
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 = 0:40, Master = 1:00, Expert = 2:00
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools)
Theme: Two Sides (the shading is just for artistic effect)
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 = 1:20, Master = 1:45, Expert = 3:30
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools)
Theme: Even/Odd Clover
Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 9th column from top to bottom.
Time Standards (highlight to view): Grandmaster = 3:00, Master = 4:45, Expert = 9:30
Solution: PDF
Note: This puzzle is probably harder than a typical Monday, but was the style we always had in mind for 9/9, which the World Puzzle Federation recently set as “International Sudoku Day”. Happy solving! 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.