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Calcudoku 7×7 with undetermined numbers
http://www.calcudoku.org/forum/viewtopic.php?f=16&t=642
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Author:  kozibrada  [ Fri Dec 12, 2014 4:15 am ]
Post subject:  Calcudoku 7×7 with undetermined numbers

Hihello,
this 7×7 calcudoku contains some of numbers 0–9 (integers). And a hint: F… [rolleyes]

Image

Author:  sica  [ Fri Dec 12, 2014 3:34 pm ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

What are the possible combinations for 3|?

Author:  pnm  [ Fri Dec 12, 2014 4:14 pm ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

Yes, at first sight I'm thinking for that large 3| cage, "the horizontal bar must have 1, 2, 3,
but that's not possible!" [huh]

So that's a clue, really :-)

Author:  clm  [ Sat Dec 13, 2014 12:05 am ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

pnm wrote:
Yes, at first sight I'm thinking for that large 3| cage, "the horizontal bar must have 1, 2, 3,
but that's not possible!" [huh]

So that's a clue, really :-)


Not necessarily because you could have 0,1,3 for that horizontal, for instance, since there is a 0 in the puzzle because of cage "0x".
The real inconsistency that I see is that the 0 of row 7 must necessarily go to a7-b7, that is, "5+" = [0,5] and then the 5 of column c must go to c1-c2, that is, "5-" = [0,5] and, as a consequence, "3+" = [1,2] so c3 = 3 (unique, with b2-b3 = [1,2], being [1,1,6] invalid) and I can not imagine which number to place in c4 different than 0,1,2,3 that does not violate the "bitwise or" of cage "3|" (the other numbers in the supossed range 4,6,7,8,9 are not valid).

So I will wait the "clue" either.

Author:  kozibrada  [ Sat Dec 13, 2014 1:00 am ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

pnm wrote:
Yes, at first sight I'm thinking for that large 3| cage, "the horizontal bar must have 1, 2, 3,
but that's not possible!" [huh]

So that's a clue, really :-)
clm wrote:
The real inconsistency that I see is that the 0 of row 7 must necessarily go to a7-b7, that is, "5+" = [0,5] and then the 5 of column c must go to c1-c2, that is, "5-" = [0,5] and, as a consequence, "3+" = [1,2] so c3 = 3 (unique, with b2-b3 = [1,2], being [1,1,6] invalid) and I can not imagine which number to place in c4 different than 0,1,2,3 that does not violate the "bitwise or" of cage "3|" (the other numbers in the supossed range 4,6,7,8,9 are not valid).

So I will wait the "clue" either.
I’m not sure if Patrick found out the solution. According to the smiley, maybe yes. [biggrin]

So another hint/clue: My first hint doesn’t mark a column… [smile]

Author:  pnm  [ Sat Dec 13, 2014 1:06 pm ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

clm wrote:
Not necessarily because you could have 0,1,3 for that horizontal, for instance, since there is a 0 in the puzzle because of cage "0x".

You're thinking too deeply [rolleyes]
It just tells me there must be a zero in the puzzle (so yes, I hadn't even looked at the "0x" cage [mellow] )

Author:  kozibrada  [ Fri Dec 19, 2014 5:06 am ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

No reply, so:

Image

:-)

Author:  sica  [ Mon Dec 22, 2014 8:58 pm ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

This is a very good calcudoku.
I found a problem in it that I can't solve.
It could be a typing error.

The large "3|" cage can contain 0,1,2 or 3.
Because f4=2 cells [b2-d2] contain 0,1 and 3. In this case g3=0.
In cage "1^" one of cells must be 0 or 1. Because g3=0 one cell must be 1.

Cage "6x" can be [1,2,3] or [1,1,6]. But because "1^" contain 1 [1,1,6] is not valid.
After this we have on row 3:
- in columns b and c [2,3]
- in columns e or f [1]
- in column g [0]

So we used all the numbers possible for large cage "3|".
In this case we don't have any number left for cell d3.

Author:  nicow  [ Tue Dec 23, 2014 11:01 pm ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

Yes I like this kind of puzzle. I know how hard it is to make one.
But I did not find a solution.
With the ‘‘3|’’ of the large cage replaced by ‘‘15|’’ there might be 1 solution. But I don't stick my hands in the fire because I do make many mistakes.

Author:  kozibrada  [ Wed Dec 24, 2014 9:32 am ]
Post subject:  Re: Calcudoku 7×7 with undetermined numbers

I’m bringing the third clue for the upper puzzle – more practical and probably deciding:

Image

(Note: 0+ integers.)
How many solutions has the puzzle? [wink]

Maybe I’ll be killed for this innovation… :-)

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