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PostPosted: Fri May 02, 2008 3:36 pm 
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You have three flavours to choose from. At SudoCue I will post it as Substitute Clueless Special #5.
All three flavours #1A, #1B and #1C are variations of the same puzzle, i.e. they have identical solutions.

A) The mainstream edition.
B) The Oscar edition.
C) The Glyn edition: 6 N/H Pairs/Triplets/Quads, 1 Turbot Fish, 1 Grouped TF, 1 Y-Wing.



Regular Clueless Special #1A

Rating based on required solving techniques:  Barely Tough
My personal rating based on actual solving: Tough

Image

007000200000800003300040086000000500075000004001000060009063020010020030000000007
000200005040007020270005060000000000600000010907000300001370000060800102500000006
000000000000400016800057003000000700019000400005000200000300100084600020000000000
070060800000750002004000970000000010607000008501000000010000000003270590020609003
000705803030060000560000201005000002004000030103000600010020048080103000000000000
400000000009004100002060054300000000097000002800000070030100006008700035040000290
062007000900000000800026910020000300005000000300000590090030008700005030003000100
000072600070508000600000010500000004009000065020000070002740806700050000400000000
000000100036008000008920005000000000000000890250000040500000009700600020000802000



Regular Clueless Special #1B

Rating based on required solving techniques:  Hard

Image

007000200000000073300040086000000500075000004001000060009063020010020030000000007
000200005040600000270005060000000000600000010907000300001300000060800102500000006
000000000000400016800057003400000700019000400005000200900300100084600020000000000
300000800000750102004000970000000000607000008501000000000030000003270590020609003
000005003030060000560000201005000002004000030100000600000000048080103000000000000
000000000009004000002060054300000000097000002800000070030000006000700035040000290
062007000900000000800026910020000000105000000300000590090000008700005030003000100
000072000070508000600000010500000004009000065020000070002040806700050000400000000
000000100036008000008920005000000000000000890250000040500000009780600020000802000



Regular Clueless Special #1C

Rating based on required solving techniques:  Barely Super hard

Image

007000200000000003300040086000000500075000004001000060009063020010020030000000007
000200005040000020270005060000000000600000010907000300001370000060800002500000006
000000000000400016800057003000000700019000400005000200000300100084600020000000000
302060800000750102004000976008000010607000058501000000810030000003270590020609003
000005003030060000560000201605000402004000030100000600000000048080103000000000000
000000020009004100002060054300000000097000002800000070030000006008700035040000290
062007000900000000800026910020000000005000000300000590090000008700005030003000100
000072000070508000600000010500000004009000065020000070002040806700050000400000000
000000100036008000008920005000000000000000890250000040500000009700600020000802000

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Last edited by Børge on Sat May 17, 2008 5:54 pm, edited 2 times in total.

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PostPosted: Fri May 02, 2008 10:34 pm 
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When the going got tough in #1C and the Clueless looked like this, the chain helped
Hidden Text:
Code:
.------------------.------------------.------------------.
| 2469  378   249  | 157   138   1378 | 15    2469  2469 |
| 236   138   128  | 579   4     3789 | 578   2367  23568|
| 3479  378   5    | 16A   2A6a  12a8 | 178   13479 13489|
:------------------+------------------+------------------:
| 5     4     6    | 38    138   18   | 9     27    27   |
| 1     9     3    | 2-6   7     2A6a | 458   45    58   |
| 8     2     7    | 49    5     49   | 6     13    13   |
:------------------+------------------+------------------:
| 347   5     148  | 12368 269   136  | 1347  14679 14679|
| 349   1368  1489 | 13478 18    1347 | 2     1456  1456 |
| 247   167   124  | 1346  69    5    | 137   8     1679 |
'------------------'------------------'------------------'


(6=2)r5c6-(2)r3c6=(2-6)r3c5=(6)r3c4

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PostPosted: Sat May 03, 2008 2:26 pm 
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The #1B also required one chain, but I did not record it, the most frequent tool was through hiden and naked triples.
#1C was harder indeed, I used Glyn chain to brake it.
Just for the record, the solution:
Hidden Text:
274538169681749532935162874546381927193276458827954613458623791369817245712495386

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PostPosted: Sat May 03, 2008 2:49 pm 
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Good to see a post from you again Oscar. I have been missing your "regular" feedback.

Oscar wrote:
The #1B also required one chain
The JSudoku Solver log for #1B reads:
377 Naked Singles
161 Hidden Singles
66 Intersections
9 Naked Pairs
5 Hidden Pairs
3 Naked Triplets

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PostPosted: Sat May 03, 2008 3:16 pm 
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Hi Børge, I took some time off, visiting Italy! And now back to Sudoku fun time :dance: .
It seems I will have to do again the #1B, without any chains this time :oops:
I have great expectations for the new SS and its shortcuts, that would ease the clueless routine work.

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PostPosted: Mon May 05, 2008 1:14 am 
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1a was a nice relaxing one. I'd probably even go with "hard" instead of "tough" on the Ruud scale. Perfect for a lazy Sunday afternoon.

I should have done 1b instead but I just wasn't in the mood to think that much....


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PostPosted: Tue May 06, 2008 3:47 pm 
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Done the #1B without any chains, took longer, but it was a good exercise on learning the possibilities of SudokuSolver 8-)

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PostPosted: Tue May 06, 2008 10:43 pm 
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Oscar wrote:
Done the #1B without any chains, took longer, but it was a good exercise on learning the possibilities of SudokuSolver 8-)
I was a bit concerned tha SudokuSolver gave up on 1D - so I spent a productive time this morning on the train and taught SudokuSolver about Centre Dot eliminations and tracked down why XY-Chains wasn't doing its job properly.

End result is that the next version of the solver will quite happily complete all these puzzles using logic . . .

. . . I don't like to be beaten!!

Rgds
Richard


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PostPosted: Wed May 07, 2008 12:41 pm 
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rcbroughton wrote:
I was a bit concerned tha SudokuSolver gave up on 1D - so I spent a productive time this morning on the train and taught SudokuSolver about Centre Dot eliminations and tracked down why XY-Chains wasn't doing its job properly.
End result is that the next version of the solver will quite happily complete all these puzzles using logic . . .

. . . I don't like to be beaten!!

Rgds
Richard
I think you got the wrong thread here. This is the Clueless Special thread. ;)
For CE-57226 both JSudoku 1.3b1 and SudokuSolver 3.0.3 can solve the SAME 20 cells using logic only. How many can the upcoming version of SodokuSolver solve? Can you beat JSudoku?

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