or solve online (using our beta test of Penpa-Edit tools)
Theme: Logical
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 = 2:30, Expert = 5:00
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools)
Theme: Almost All Two Easy!
Rules: Standard Yajilin 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 = 0:55, Master = 1:10, Expert = 2:20
Solution: PDF
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: TC
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 = 1:00, Master = 1:30, Expert = 3:00
Editor’s Note: Today we add Tom Collyer to our list of Contributing Puzzlemasters. A noted sudoku solver and puzzle author, Tom’s Friday Puzzles have been an online puzzle mainstay for many years — not to be confused with Thomas‘s Friday Puzzle which started around the same time.
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between number placement, ship placement, and shading modes. The shading mode in gray, which numbers can be written on top of, may work better than default ship placement.)
This is a “Twisted Tuesday” puzzle variation.
Theme: No Radar!
Rules: Standard Battleship Sudoku rules. However, there is no radar (no outside battleships clues).
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 = 1:45, Master = 2:30, Expert = 5:00
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools)
Theme: Symmetry and Logic
Rules: Standard Skyscrapers rules.
Answer String: Enter the 1st row from left to right, followed by a comma, followed by the 4th column from top to bottom.
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 in linex mode where left click+drag draws lines and right click marks X’s)
This is a bonus “Twisted Tuesday” puzzle variation.
Theme: None?
Rules: Standard Double Back rules (originally from MellowMelon). In short: draw a single loop that enters and exits every cell exactly once, and enters and exits every region exactly twice.
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 = 2:15, Master = 3:30, Expert = 7:00
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools)
Theme: None?
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 = 2:00, Master = 2:30, Expert = 5:00
Solution: PDF
or solve online (using our beta test of Penpa-Edit tools)
Theme: Logical; after solving: did you notice that starting in the upper-left corner you can fill in all the tetrominoes in L-I-T-S-L-I-T-S-L-… order?
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 = 1:30, Master = 2:00, Expert = 4:00
Solution: PDF
Editor’s Note: Welcome to “LITS Week” where we will introduce another puzzle style to Grandmaster Puzzles’ repertoire. Please check out our Rules and Info page for LITS, including a new example puzzle, if you are not familiar with the type.
or solve online (using our beta test of Penpa-Edit tools)
Theme: % sign
Rules: Standard Statue Park rules. Note: despite the presentation of shapes above, all shapes can be reflected if necessary.
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 = 3:15, Master = 4:15, Expert = 8:30
Solution: PDF
Note: Follow this link for other Statue Park Puzzles. If you are new to this puzzle type, here are our easiest Statue Parks to get started on.
or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)
Theme: MM
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 = 2:00, Master = 2:45, Expert = 5:30
Solution: PDF
Editor’s Note: It is with great pleasure that we add Palmer Mebane to our list of Contributing Puzzlemasters this week with a set of rather interesting and challenging puzzles. One of the top puzzle solvers in the world (the current US Puzzle Champion and a past World Puzzle Champion), Palmer is also a phenomenal puzzle designer as anyone who has followed his puzzles in the past should know.