Can you solve a jigsaw sudoku puzzle with invisible walls? The sudoku part might be easy enough – fill in the grid with numbers and don’t repeat them in any row or column. However, you also can’t repeat them in an irregular region that you can’t see!
One of the most iconic romantic moments in fiction is the balcony scene in Romeo and Juliet. When I saw the layout of this 2-grid Sudoku puzzle, I knew I had to use that as the background image. There are more ways to overlap a pair of Sudoku grids, but this one just feels right. Enjoy the solve!
Today is National Argyle Day, celebrating the pattern based on the tartan of Clan Capbell of Argyll in western Scotland. This pattern has been in use since the 17th century. Today’s puzzle is an Argyle Sudoku.
“All in all, it’s just another brick in the wall.” On this day in 1979, Pink Floyd released one of their most well-known concept albums. The Wall sold over 30 million copies. Today, we celebrate with a Bricks puzzle.
Today, we have a simple Bricks puzzle.
Fill in the grid with the numbers 1 to 8 without repeating a digit in any row or column.
Calcudoku is the generic name for a Sudoku variant known better by the trademarked titles KenKen or Kendoku. To make things a little easier, I color-coded regions with the same math operation.
I learned about Chain Sudoku puzzles fairly recently, and thought they’d make for a visually cool presentation. This form was popularized under the trademarked name Strimko, which was invented in 2008 by the Grabarchuk family. They’re similar to Jigsaw Sudoku puzzles, with jumbled regions, except they are not necessarily orthogonally contiguous.
Happy Baba Marta Day! This is a Bulgarian holiday to celebrate Grandmother Martha, the bringer of spring. Observers exchange and wear red and white tassels, called Martenitsas to guard against evil. Once the wearer has seen a stork or blossoming tree, they remove the Martenitsa and hang it from the tree.
Today’s puzzle, colored to resemble a Martenitsa, is Comparison Sudoku.
One common Christmas decoration, especially in the southern United States, is the poinsettia flower. In honor of that, today’s puzzle is Flower Sudoku. This is five overlapping Sudoku grids, in which the central grid is completely covered by the four outer grids.
The Royal Guard has discovered Guy Fawkes skulking around in the cellars beneath the House of Lords. He has confessed to a wicked plot, but we must still find the gunpowder with which the plan was to be carried out!
