It's a killer using the numbers 1 to 12 (so the group total is 78 not 45). The green lines border the horizontal boxes, and the red lines border the vertical boxes.
This puzzle is rated INSANE, and has a unique solution.
Both Barrels at Once
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Both Barrels at Once
by Lardarse » Sat May 26, 2007 9:28 am
The big question when it comes to making a sudoku which has rectangular boxes is this: should they be horizontal (wider than tall) or vertical (taller than wide)? Well, I couldn't decide which way I wanted to do it, so I decided to do both at once...
It's a killer using the numbers 1 to 12 (so the group total is 78 not 45). The green lines border the horizontal boxes, and the red lines border the vertical boxes.
This puzzle is rated INSANE, and has a unique solution.
It's a killer using the numbers 1 to 12 (so the group total is 78 not 45). The green lines border the horizontal boxes, and the red lines border the vertical boxes.
This puzzle is rated INSANE, and has a unique solution.
- Lardarse
- Posts: 106
- Joined: 01 July 2005
by Smythe Dakota » Sat May 26, 2007 7:38 pm
It's insane, all right, in more ways than five.
How about something just a little less insane, like a 12x12 with both 4x3 and 3x4 boxes, but not a sum-doku -- just some standard-looking givens? And not a killer, please. With new ideas, the interesting part is the new thought processes required, not how difficult you can make it.
Bill Smythe
How about something just a little less insane, like a 12x12 with both 4x3 and 3x4 boxes, but not a sum-doku -- just some standard-looking givens? And not a killer, please. With new ideas, the interesting part is the new thought processes required, not how difficult you can make it.
Bill Smythe
- Smythe Dakota
- Posts: 564
- Joined: 11 February 2006
by motris » Sun May 27, 2007 12:57 am
I greatly enjoyed this variation and like how the "both barrels" boxes set up a bunch of different Law of Leftovers subsets. While this could work for a more standard (ie non-killer form), I found the way the subsets worked for the killer to actually be more interesting. As I'm also unfamiliar with all the sums using digits 1-12, I found, unlike on a regular size killer, that I was testing a lot more combinations than usual which made the puzzle more interesting.
I will agree that the level is hard, but I found I could make steady progress through to the finish.
It might be worth writing one that is a little easier - maybe with some more innies and outies that are trivially found by scouting around the 24 boxes - but overall this is a cool idea.
I will agree that the level is hard, but I found I could make steady progress through to the finish.
It might be worth writing one that is a little easier - maybe with some more innies and outies that are trivially found by scouting around the 24 boxes - but overall this is a cool idea.
- motris
- Posts: 71
- Joined: 13 March 2006
by Smythe Dakota » Sun May 27, 2007 1:32 am
I didn't realize that "killer" and "sum-doku" meant the same thing. I thought a killer was simply an extremely difficult puzzle.
I've seen some incredibly easy sum-dokus in popular magazines. I would never even consider labeling them as "killers".
Bill Smythe
I've seen some incredibly easy sum-dokus in popular magazines. I would never even consider labeling them as "killers".
Bill Smythe
- Smythe Dakota
- Posts: 564
- Joined: 11 February 2006
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