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8x8 no-op with negative numbers https://www.calcudoku.org/forum/viewtopic.php?f=16&t=688 |
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Author: | pnm [ Sun Apr 26, 2015 12:20 pm ] |
Post subject: | 8x8 no-op with negative numbers |
Accidentally created this one: |
Author: | pharosian [ Sun Apr 26, 2015 6:56 pm ] |
Post subject: | Re: 8x8 no-op with negative numbers |
-4 to 4, I presume? |
Author: | pnm [ Sun Apr 26, 2015 7:46 pm ] |
Post subject: | Re: 8x8 no-op with negative numbers |
pharosian wrote: -4 to 4, I presume? -4 to 4, now let me think... |
Author: | pharosian [ Wed Apr 29, 2015 3:26 am ] |
Post subject: | Re: 8x8 no-op with negative numbers |
I sense sarcasm there. But really, now that I think a bit more on it, a -4 to 4 puzzle would by 9x9, so what IS the range for this one? Or is figuring that out part of the puzzle? |
Author: | pnm [ Wed Apr 29, 2015 8:43 am ] |
Post subject: | Re: 8x8 no-op with negative numbers |
pharosian wrote: But really, now that I think a bit more on it, a -4 to 4 puzzle would by 9x9, so what IS the range for this one? Or is figuring that out part of the puzzle? I'm actually not 100% sure you can figure out the range from the puzzle, but my guess is it should be possible. Edit: looking at the puzzle, it's quite easy, there's a "-9" and a given "4". The 4 tells you the smallest possible negative number is -3, etc. |
Author: | nicow [ Wed Apr 29, 2015 11:48 am ] |
Post subject: | Re: 8x8 no-op with negative numbers |
I found a solution. Not sure if it is the only one. |
Author: | beaker [ Wed Apr 29, 2015 7:22 pm ] |
Post subject: | Re: 8x8 no-op with negative numbers |
Still not sure about the range of numbers used........is it obvious.........like -3 to +4? |
Author: | nicow [ Thu Apr 30, 2015 10:43 am ] |
Post subject: | Re: 8x8 no-op with negative numbers |
Yes, Beaker, that is the range I found too. |
Author: | clm [ Thu Apr 30, 2015 11:35 pm ] |
Post subject: | Re: 8x8 no-op with negative numbers |
nicow wrote: Yes, Beaker, that is the range I found too. The solution I found is unique with respect to numbers I have considered but not unique with respect to operators, as usual in no-ops, in fact the cage "0" c1-c2-d1 admits up to 3 different operators (+, x, :). However I did not try "many" different sets of numbers, continuous of course, since I believe that actually the software is not able to generate puzzles with skipped numbers . |
Author: | pnm [ Fri May 01, 2015 8:43 am ] |
Post subject: | Re: 8x8 no-op with negative numbers |
clm wrote: However I did not try "many" different sets of numbers, continuous of course, since I believe that actually the software is not able to generate puzzles with skipped numbers . That is correct. It is the next step for the software, puzzle with arbitrary sets of numbers |
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