PDF

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

Theme: C Sharp

Author/Opus: This is the 43rd puzzle from our contributing puzzlemaster Serkan Yürekli.

Rules: Shade some empty cells black to form a set of dominoes (1×2 rectangles) that divides the grid into white regions; the dominoes cannot overlap or share an edge. Each region must contain exactly one type of given letter, and must also contain all instances of that letter (i.e. there cannot be two regions that contain C). See also this example:

Answer String: Enter the length of the unshaded segments in order in the marked rows/columns. Separate the groups with a comma. For this example, the answer is “25,132”

Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:30, Expert = 11:00

Solution: PDF

All the puzzles from last week’s variety week have been grouped in this PDF. Over the last couple of weeks we’ve also been highlighting some championship puzzles written by puzzlemaster Serkan Yürekli. If you’d like to see his entire 24HPC puzzle set, go here. The Japan dakejanai Zukei dakejanai Puzzle Championship puzzles we featured have not been released yet, but may eventually be here.

Serkan has been an instrumental designer in sharing good ideas from Japan with a wider, western audience; his OAPC series, WPC puzzles, and even his contributions here at Grandmaster Puzzles (like last week’s Dominion originally by Naoki Inaba) are often styles adapted from puzzles he finds in Japanese championships. Next week will focus on another such type, originally a Japanese style 相ダ部屋 that was renamed Araf, meaning “purgatory” in Turkish, by Serkan when I first ran into it at the 2010 World Puzzle Championship. We will have some classic puzzles, and some interesting minor variations.

The bonus puzzle for our high-level supporters will be a Cross the Streams by Grant Fikes. Our Master and above patrons also received a puzzle we believe to be the largest Tapa ever made (it is certainly the largest Tapa Serkan Yürekli has ever written). If you haven’t considered supporting our website yet, now would be a good time to do so.

All the puzzles from last week’s Skyscrapers collection have been grouped in this PDF. Many thanks again to Roland Voigt for the fantastic Skyscrapers; he even made some walkthroughs for the classic puzzles. You’ll find more of Roland’s puzzles here and other content linked from his blog.

Next week will be another variety week with a range of puzzles including a few new variations (highlight to view):

Monday: Battleships by Thomas Snyder
Tuesday: Slitherlink (Sheep and Wolves) by Grant Fikes
Wednesday: TomTom by Grant Fikes
Thursday: Dominion by Serkan Yürekli
Friday: Thermo-Skyscraper Sudoku by Hans van Stippent
Saturday: Heavy Dots by Prasanna Seshadri

The bonus puzzle for our high-level supporters will be a Fillomino by Prasanna Seshadri.

We will also have a few bonus puzzles throughout the week from the recent competition puzzles from Serkan Yürekli. This week they will all be Double Minesweeper puzzles which is a style we plan to feature in a future title from Grandmaster Puzzles.