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Skyscraper Jigsaw Samurai Sudoku
Posted on April 16th, 2009 9 comments
Skyscraper Jigsaw Samurai Sudoku puzzleI’m pretty confident that you won’t have come across one of these puzzles before – I certainly haven’t! It’s a Samurai Skyscraper Sudoku puzzle with Jigsaw regions instead of regular 3×3 boxes.
The aim is to place 1 to 9 into each row and column of each of the two overlapping 9×9 grids, and also place 1 to 9 into each of the bold-lined jigsaw pieces. On top of that, you must also obey the Skyscraper constraints, which are the numbers outside the main puzzle grid. They specify the number of digits you can ’see’ from each point, where higher digits obscure lower digits (so a 7 obscures 1 to 6, and a 9 obscures all other digits, for example) – see yesterday’s post for a slightly longer explanation of how these constraints work.
Good luck!
Jigsaw Samurai, Jigsaw Sudoku, Samurai, Samurai Variants, Skyscraper, Sudoku, Sudoku Variants Jigsaw, Samurai, Skyscraper, Sudoku9 responses to “Skyscraper Jigsaw Samurai Sudoku”
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With the samurai sky scraper do the numbers around the edge apply to a row of twelve(where applicable) or only the first nine in a given direction?
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Christine April 18th, 2009 at 19:55
Hi Ricky, I am almost certain you treat the puzzle as two overlapping 9 x 9 grids and therefore the skycraper numbers would only go up to 9 (even in a row of 12 because the last 3 boxes are not part of that particular 9 x 9 grid, if that makes sense!) I hope that’s correct. I am new to skycraper puzzles and am working on this one too!
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It doesn’t actually matter whether the skyscraper clues refer to the entire width/height of the puzzle or just the first grid encountered, which is why I didn’t mention this.
Because the first 9 squares are guaranteed to contain a ‘9′ at some point, and nothing past that square can possibly be higher than a ‘9′, then the skyscraper clues will be the same whether you count 12 squares (where possible) or just 9 squares every time.
Hope this helps!
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Christine May 10th, 2009 at 10:25
I still haven’t managed to solve this one yet! I’ve got near to completion twice, but then realised I’ve gone wrong! Is it significanlty harder because of the overlapping grids which means you don’t get clues at either side of the 9×9 grids (if that makes sense) or is it just me?
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Spittledung May 10th, 2009 at 11:28
I completed this one a while back. Something that might help is where you have the 12 length rows and columns, the first 3 digits will match the last 3 digits (they might not be in the same order).
As an example: If you are lucky enough to deduce a 9 in one of these areas, then you know another 9 must exist in the set of 3 at the opposite end.
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Christine May 11th, 2009 at 19:55
I was aware of that strategy, but am still getting a bit stuck with this one. I find it relatively easy to place the 9s, 8s and even the 7s, it is the lower numbers which cause the problem! Anyway, nice to hear that someone has managed it Spittledung! I’m not prepared to give in yet so will give it one last try!
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If you’d like a copy of the solution, just let me know!
You’re right that there are far less Skyscraper clues than in other puzzles I’ve published. Interestingly, a common thing to do in general (which I haven’t done yet) is to remove lots of the Skyscraper clues from a puzzle, just like removing givens from the Sudoku part – maybe I won’t try making puzzles like that as a top priority then.
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Christine May 14th, 2009 at 20:06
I’m making a habit of this, but yes please! I always enjoy getting to grips with a new type of puzzle but am needing more practise with these! Thanks. I hate it when a puzzle gets the better of me!
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Great post! Just wanted to let you know you have a new subscriber- me!
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Ricky April 18th, 2009 at 18:39