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25 December 2009 @ 10:09 am
Friday Puzzle #29 - SudokuCup - more examples  
The instruction file will be out soon, but here are the last examples I've written to complete the test files (for Tight-Fit, Extra Space, and 3D Sudoku puzzles I've used past fitting examples already posted on this blog). Its shaping up to be a great test, and will be my main argument (if its well received) for why I should be constructing puzzles in April for Philadelphia even though I'm a favorite if I choose to compete.


Sudo-Kurve: Write a single number from 1 to 9 in each cell such that each number appears exactly once in every row and bolded box. Unlike a standard sudoku, the rows here sometimes bend along the indicated curves. Each row contains exactly 9 cells. (Note: the actual puzzle will use a different geometry than the example, but the concept of "bending rows" will be the same.)





Outside Sudoku: Write a single number from 1 to 9 in each cell such that each number appears exactly once in every row, column, and bolded 3x3 box. No clues appear in the grid; instead, numbers appear around the edges of the puzzle. Any number given outside the grid indicates that that number must appear somewhere in the three closest cells in the row/column that the clue appears in.





Thermo-sudoku: Write a single number from 1 to 9 in each cell such that each number appears exactly once in every row, column, and bolded 3x3 box. Bent thermometers appear in the grid. In all cases, the numbers appearing in the thermometer must be strictly increasing from the "bulb" of the thermometer to its end.

 
 
( Read 7 commentsLeave a comment )
motrismotris on December 26th, 2009 04:10 pm (UTC)
Outside is a type (like say skyscrapers or easy as ABC) where it really pays to cross off the clues once you've spent them. I was testing a puzzle that I thought was valid (this one actually) on the plane, completely missed an outside constraint I had not yet used, and was frustrated I wasn't remembering to cross off the used clues.
Robert Hutchinsonertchin on December 26th, 2009 07:29 pm (UTC)
I wish I could blame not crossing off clues, but sadly, that's one thing I manage to do correctly. No, this was simply a digit that had to go somewhere because of basic row and column elimination.