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 Post subject: Psycho Killer Jigsaw
PostPosted: Wed Jan 30, 2019 12:42 am 
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This puzzle has simple and familiar rules.

  • fill in the grid using 1 to 9 so that all white cells in rows, columns, and the outlined jigsaw areas have different values

So it is a Sudoku Jigsaw, kind of ...

  • the clues indicate the total of all digits in the corresponding "cage". A cage here means a Kakuro-style run.

So it is also a Killer, kind of … and a Kakuro, kind of ...

It's printer-friendly, in any case. And this one should be quite easy. Some instant fill-ins should be quickly identified (think "rule of 45").

Puzzle image:
Attachment:
SudokuPK-Demo-Larger.png
SudokuPK-Demo-Larger.png [ 21.7 KiB | Viewed 333 times ]


Solution:
Code:
3 1 . 5 6 . 2 7 4 8 9
8 7 4 9 2 1 6 . 5 3 .
2 9 . 4 1 3 . 5 8 6 7
5 6 9 7 3 8 1 . 2 . 4
4 5 6 8 7 2 . 3 9 . 1
. 3 1 2 8 6 4 9 7 5 .
7 . 5 3 . 9 8 4 1 2 6
1 . 2 . 5 4 7 6 3 9 8
9 4 8 6 . 7 3 2 . 1 5
. 8 3 . 4 5 9 1 6 7 2
6 2 7 1 9 . 5 8 . 4 3


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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Wed Feb 06, 2019 9:57 pm 
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Thanks for that interesting puzzle, Mathimagics!


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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Thu Feb 07, 2019 3:40 am 
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A customer at last! :shock:

Thanks!

I see great potential for this kind of puzzle, but was beginning to wonder why nobody else did ...

Would you care to see a more challenging example?


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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Thu Feb 07, 2019 10:06 pm 
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I'd love to see it! I may not solve it, but I'll give it a shot! :ok:


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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Sun Feb 10, 2019 11:22 pm 
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Joined: Tue Jun 16, 2009 9:31 pm
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Location: California, out of London
Very clever idea! I've always liked Kakuro. As you say - not too hard. I too would like to see the harder one!


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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Mon Feb 11, 2019 4:32 am 
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.
Ok, the software is a bit raggedy at the moment, just a proof of concept prototype, but I can and will use it to give you a harder puzzle. This should be available within 12 hours of this post!

Thank you both for your interest! 8-)


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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Mon Feb 11, 2019 8:21 pm 
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Here is a harder puzzle on the same grid. You will find that not all of the sums are given:
Puzzle image:
Attachment:
SudokuPK-002.png
SudokuPK-002.png [ 20.96 KiB | Viewed 228 times ]

Solution::
Code:
2 8 . 6 4 . 3 5 9 7 1
7 5 9 1 3 8 4 . 6 2 .
3 1 . 9 8 2 . 6 7 4 5
6 4 1 5 2 7 8 . 3 . 9
9 6 4 7 5 3 . 2 1 . 8
. 2 8 3 7 4 9 1 5 6 .
5 . 6 2 . 1 7 9 8 3 4
8 . 3 . 6 9 5 4 2 1 7
1 9 7 4 . 5 2 3 . 8 6
. 7 2 . 9 6 1 8 4 5 3
4 3 5 8 1 . 6 7 . 9 2


Last edited by Mathimagics on Tue Feb 12, 2019 5:40 am, edited 1 time in total.

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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Tue Feb 12, 2019 5:37 am 
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I finally got the grid template manager and the solver/generator to communicate, so we can change the layout.

This puzzle should be anything but routine:

Puzzle image::
Attachment:
SudokuPK-004.png
SudokuPK-004.png [ 23.67 KiB | Viewed 222 times ]


Solution::
Code:
9 7 2 . 4 8 5 6 3 1 .
1 3 8 5 6 . 9 2 . 7 4
4 . 6 1 9 3 . 7 2 8 5
6 1 5 . 2 4 7 8 . 3 9
8 2 3 9 7 1 . 4 5 . 6
. 5 7 3 8 6 2 1 4 9 .
5 . 4 6 . 9 1 3 8 2 7
2 9 . 4 3 5 8 . 7 6 1
3 6 1 7 . 2 4 5 9 . 8
7 8 . 2 5 . 6 9 1 4 3
. 4 9 8 1 7 3 . 6 5 2


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 Post subject: Re: Psycho Killer Jigsaw
PostPosted: Wed Feb 27, 2019 12:18 pm 
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Oh dear, I seem to have lost my audience ... :(

Did I make the puzzles too hard? Not hard enough? Not interesting enough? :?:

I have no time at the moment for P&P trials myself, so feedback would be really useful for me …


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