an invalid puzzle that you can solve ;)

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an invalid puzzle that you can solve ;)

Postby speter » Wed Oct 10, 2018 3:00 am

The following puzzle, as is, it has > 500 solutions.
Fire a canon at it and you can solve it. :)

Code: Select all
.........
......6.5
.....8...
.87..5..1
......52.
6...1..7.
..93.4...
.4.2.....
83.5...1.


Enjoy.
speter
 
Posts: 16
Joined: 30 March 2017

Re: an invalid puzzle that you can solve ;)

Postby enxio27 » Wed Oct 10, 2018 1:19 pm

Not going to waste my time on an invalid puzzle. :roll:
User avatar
enxio27
 
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Re: an invalid puzzle that you can solve ;)

Postby eleven » Wed Oct 10, 2018 7:30 pm

If the puzzle solution is canonicalized, the first row is 1-9. Then it is not hard to get a solution.
eleven
 
Posts: 1862
Joined: 10 February 2008

Re: an invalid puzzle that you can solve ;)

Postby speter » Wed Oct 10, 2018 10:29 pm

OK, so that wasn't a particularly interesting puzzle.

How about this one:

Code: Select all
. . . | . . . | . . .
. . 6 | . 9 . | 4 . .
. . . | . . . | 2 . .
------+-------+------
. . . | . . . | . . .
. . . | . . 7 | . . 6
. . 4 | . . . | . 1 .
------+-------+------
. . . | 6 . . | . 4 .
. 7 . | . . . | . . .
5 . . | . . . | 8 . .

...........6.9.4........2................7..6..4....1....6...4..7.......5.....8..

Enjoy.
speter
 
Posts: 16
Joined: 30 March 2017

Re: an invalid puzzle that you can solve ;)

Postby eleven » Thu Oct 11, 2018 6:00 am

With respect to a one-step solution the first one is interesting.
eleven
 
Posts: 1862
Joined: 10 February 2008

Re: an invalid puzzle that you can solve ;)

Postby eleven » Thu Oct 11, 2018 4:53 pm

Hm, no takers. here is mine:
Code: Select all
 *----------------------------------------------------*
 |  1    2   3   |  4   5     6   |  7     8    9     |
 |  49   7   8   |  1   239   239 |  6     34   5     |
 |  459  6   45  |  7   39    8   |  1     34   2     |
 |---------------+----------------+-------------------|
 |  234  8   7   |  69  234   5   | *34    69   1     |
 | c34   9   1   |  68  347  b37  |  5     2    68    |
 |  6    5 c#24  |  89  1     23  | *3489  7   *348   |
 |---------------+----------------+-------------------|
 |  257  1   9   |  3   678   4   |  28    56   678   |
 |  57   4   56  |  2   6789  1   |  389   569  3678  |
 |  8    3   6-2 |  5   679  b79  |a#24+9  1    467   |
 *----------------------------------------------------*

Almost w-wing 24r6c3,r9c7, strong link for 4 in box 6 4r46c7=r6c79 => 2r6c3=r9c7
2r6c3,r9c7 == 9r9c7 - (9=3)r59c6 - (3=2)r5c1,r5c3 => -2r9c3, stte
eleven
 
Posts: 1862
Joined: 10 February 2008


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