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08 April 2011 @ 12:01 am
Friday Puzzle #96 - Arrow Sudoku  
Back to my normal offerings after a week off to become the voice of a new puzzle audiobook series (which you should check out if you missed it). This week I've written an arrow sudoku that looks a bit like a spring flower. Enjoy!

Rules: Place a single digit from 1 to 9 into each cell so that no digit repeats in any row, column, or 3x3 bold region. Digits in the circled cells represent the sum of all digits along the path that the arrow travels, and can repeat within a sum provided they obey other sudoku rules.

Fred Stalder Fred Stalder on April 9th, 2011 01:27 pm (UTC)
Nice grid with a very fluid resolution, Thomas !
If someone want a harder version of the grid (without breaking the aesthetics), try to solve this grid without the 2 in column 2 and the 3 in column 8. I've tried and, if not mistaken, it has also a unique solution. But it becomes a very hard grid, you'll sweat to solve it ;).

motris motris on April 9th, 2011 01:46 pm (UTC)
Thanks. Yes, that change (to make an even more symmetric grid) is valid but I found it a bit too hard even for my "Friday Puzzles." Giving that 3 in the upper-right seemed essential to have a smooth solving puzzle.

Edited at 2011-04-09 01:49 pm (UTC)
TH: pencil rpipuzzleguy on April 15th, 2011 04:40 pm (UTC)
Finally got to this last night; very nice.