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Odd puzzle. It should not need colors, I think.
Posted: Tue Nov 07, 2006 6:58 am
by zoltag
I use patterns. I generated this puzzle in SE, I think.
SA (Havard's) SS and SE see it as patterns. Sudoku Cue cannot solve it with my settings. My guess is that Turbots are not covered by your methods, specifically
skyscraper, a grouped x-wing, and a Turbot.
Code: Select all
. 1 2 | . 7 . | . . 8
3 . . | . . 1 | . . .
8 . 7 | . 2 . | 1 . .
---------------------
. . . | . . 6 | . 4 .
1 . 4 | . 8 . | 6 . 2
. 2 . | 1 . . | . . .
---------------------
. . 6 | . 1 . | 2 . 5
. . . | 6 . . | . . 4
4 . . | . 9 . | 8 7 .
I suspect that ER should have caught it?
Else, I think skyscraper/grouped-x should be a toggle.
Edited to add: I am using 2.1 Beta.
Posted: Tue Nov 07, 2006 11:16 am
by Ruud
Hi zoltag,
with full throttle, SudoCue uses:
- Swordfish
- Remote Pair
- Empty Rectangle
- Simple colors (Color Trap)
I could not see a Skyscraper move that could replace any of these moves.
Grouped-X is a superset of Empty Rectangle.
I like the simplicity of Skyscraper. It will be added to the arsenal of SudoCue in one of the next releases.
cheers,
Ruud
Posted: Wed Nov 08, 2006 6:13 pm
by zoltag
Ruud wrote:
I like the simplicity of Skyscraper. It will be added to the arsenal of SudoCue in one of the next releases.
cheers,
Ruud
Great news!
Here is the step that SA sees that Sudoku Cue uses colours for (I think?)
It is a two string kite. ( a Turbot?)
Code: Select all
.---------------.---------------.---------------.
|*59 1 2 | 359 7 359 | 4 6 8 |
| 3 4 *59 | 8 6 1 |*579 2 79 |
| 8 6 7 | 459 2 459 | 1 59 3 |
:---------------+---------------+---------------:
|*579 789 3589| 2 35 6 |#39-5 4 1 |
| 1 359 4 | 3579 8 3579| 6 359 2 |
| 6 2 359 | 1 4 59 | 3579 8 79 |
:---------------+---------------+---------------:
| 79 3789 6 | 47 1 478 | 2 39 5 |
| 2 5789 3589| 6 35 78 | 39 1 4 |
| 4 35 1 | 35 9 2 | 8 7 6 |
'---------------'---------------'---------------'
Posted: Thu Nov 09, 2006 4:47 am
by zoltag
I thought sashimi x wing covers sky, it does, here is an example.
Edited to correct "Sashimi".
Code: Select all
.---------------.---------------.---------------.
| 127 27 13 | 23 8 5 | 6 9 4 |
| 69 68 38 | 39 7 4 | 1 2 5 |
| 4 5 29 | 29 6 1 | 8 3 7 |
:---------------+---------------+---------------:
| 1279 28 18 | 67 4 679 | 3 5 129 |
| 5 4 79 | 1 3 2 | 79 8 6 |
| 1279 3 6 | 78 5 789 | 24 147 129 |
:---------------+---------------+---------------:
| 8 1 27 | 4 9 37 | 5 6 23 |
| 3 67 4 | 5 2 678 | 79 17 189 |
| 267 9 5 | 678 1 3678| 24 47 238 |
'---------------'---------------'---------------'
So, sky is a Turbot, as is 2 string kite.
You don't need to add coding for sky, just text, I guess.
2 string kite would be nice to add?
Posted: Sat Nov 11, 2006 7:38 am
by zoltag
Ruud wrote:
I could not see a Skyscraper move that could replace any of these moves.
Grouped-X is a superset of Empty Rectangle.
cheers,
Ruud
I thought that grouped x was: x-wing, finned-x-wing and skyscraper (sashimi-x).
What is grouped-x?
Posted: Sat Nov 11, 2006 10:48 am
by Ruud
zoltag wrote:What is grouped-x?
Here is an example:
You could decide to use colors or use this Grouped-X loop:
Code: Select all
(X): r8c2-r4c2=r4c789-r6c789=r6c5-r79c5=r8c46-r8c2 => r8c2<>X
Skyscraper only replicates Sashimi X-Wing with a single fin cell. With 2 fin cells, it's not a Skyscraper. See:
Sudopedia on this subject.
Ruud
Posted: Wed Nov 15, 2006 5:17 am
by zoltag
Skyscraper only replicates Sashimi X-Wing with a single fin cell. With 2 fin cells, it's not a Skyscraper. See: Sudopedia on this subject.
OK, Sashimi is older than skyscraper? Cool!
Who started Sashimi, who started skyscraper?