Puzzle #636: Samurai Sudoku
Posted November 18, 2011 • #sudoku #consecutive #samurai #xv
In the first time being used here on The Griddle, XV clues are used alongside consecutive clues in a 9x9 samurai sudoku.
Comments
mathgrant • 11/28/11 2:40 pm
I have a solution that's missing some symbols:
Upper left: missing V at R2-3C3, missing bar at R4-5C7.
Upper right: missing two V's in the left center block.
Lower right: missing bar at R1C3-4, missing V at R3-4C4.
David Millar • 11/28/11 3:51 pm
Thanks for catching and posting those Grant. I've just made corrections by adding the pieces you listed as missing in your second comment.
I hereby give you permission to gloat about how your puzzles are solvable and mine aren't for a full 37 minutes, if you'd like. I'll be waiting on IM. :)
ralphmerridew • 11/28/11 6:39 pm
The puzzle is completely solvable without using the total rule. The four corners barely require using any information outside themselves, if at all. (upper left corner required information from outside; I don't think the others did at all.)
Sarah • 04/30/18 9:51 am
Are is there a solution somewhere to this puzzle? I found a way in and everything seemed to be going well, but now ive determined I made a mistake somewhere that isn't self evident, a chain of mistakes must have followed....
David Millar • 05/03/18 9:57 pm
Hey Sarah, I don't have the solution for this one posted. I’ll dig it up and post it as soon as I'm able.
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mathgrant • 11/28/11 12:55 pm
I'm arriving at contradictions in the upper-left, upper-right, and lower-right corners, all arising from the negative rule (a pair of adjacent cells without a symbol may not have that symbol's property).