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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sat Apr 04, 2009 1:22 am Post subject: Set T_03 Puzzle 22 |
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VH+
| Code: | +-----------------------+
| 4 . . | . . 6 | . . . |
| . . 1 | 9 . . | . . . |
| . 7 2 | . 5 3 | 1 . . |
|-------+-------+-------|
| . 4 . | 7 9 1 | 5 . 3 |
| . . 7 | 5 . . | 6 1 . |
| 1 . 3 | 6 . . | . . . |
|-------+-------+-------|
| . . 9 | 2 4 . | 7 6 . |
| . . . | . 1 . | 4 . . |
| . . . | 3 . . | . . 1 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sun Apr 05, 2009 9:06 am Post subject: |
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this is a head scratcher.
I don't think I saw everything available.
| Code: | .---------------------.---------------------.---------------------.
| 4 389 58 | 1 278 6 | 2389 25789 2579 |
| 568 368 1 | 9 278 28 | 238 24578 24567 |
| 689 7 2 | 4 5 3 | 1 89 69 |
:---------------------+---------------------+---------------------:
| 268 4 68 | 7 9 1 | 5 28 3 |
| 289 289 7 | 5 3 248 | 6 1 24 |
| 1 5 3 | 6 28 248 | 289 24789 2479 |
:---------------------+---------------------+---------------------:
| 3 1 9 | 2 4 5 | 7 6 8 |
| 2567 26 56 | 8 1 79 | 4 3 259 |
| 2578 28 4 | 3 6 79 | 29 259 1 |
'---------------------'---------------------'---------------------' |
{8}... r3c8 = r3c1 - r1c3 = r4c3; r4c8 <> 8
(8=9)r3c8 - (9)r3c1 = (9)r1c2 - (9=2)r5c2 - (2=6)r8c2 - (6)r8c3 = (6)r4c3 - (6=8)r4c1; r3c1 <> 8
xy-wing {5,6,8} removes 6 from r8c2 |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun Apr 05, 2009 7:59 pm Post subject: |
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I agree with Norm that it was difficult to spot a step. It took me five steps to complete the puzzle and each one seem to take a real effort. | Quote: | finned x-wing <5>,
finned x-wing <8>,
kite <8>, (which was the hardest of any to find)
xyz-wing <568>,
xy-wing<568>.
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Ted |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Sun Apr 05, 2009 10:10 pm Post subject: |
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My apologies. I didn't realize the difficulty of this puzzle. I should have also warned that an XYZ-Wing was present.
| Code: | after basics
*--------------------------------------------------------------------*
| 4 389 58 | 1 278 6 | 2389 25789 2579 |
| 568 368 1 | 9 278 28 | 238 24578 24567 |
| 689 7 2 | 4 5 3 | 1 89 69 |
|----------------------+----------------------+----------------------|
| 268 4 68 | 7 9 1 | 5 28 3 |
| 289 289 7 | 5 3 248 | 6 1 24 |
| 1 5 3 | 6 28 248 | 289 24789 2479 |
|----------------------+----------------------+----------------------|
| 3 1 9 | 2 4 5 | 7 6 8 |
| 2567 26 56 | 8 1 79 | 4 3 259 |
| 2578 28 4 | 3 6 79 | 29 259 1 |
*--------------------------------------------------------------------*
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| Code: | Kite r9c3 -or- Empty Rectangle c3b9 <> 5 [r1c8]
Kite r3c3 <> 8 [r4c8]
XYZ-Wing [r1c8]/[r1c5]+[r3c8] <> 8 [r1c7] extraneous
XYZ-Wing [r2c1]/[r1c3]+[r4c1] <> 8 [r3c1]
UR Type 1 [r16c89] <> 79 [r1c9] extraneous
XY-Wing [r1c3]/[r2c2]+[r8c3] <> 6 [r8c2]
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Mon Apr 06, 2009 2:42 am Post subject: |
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| daj95376 wrote: | | My apologies. I didn't realize the difficulty of this puzzle. I should have also warned that an XYZ-Wing was present. |
Danny, I don't think you need to apologize for anything, nor warn us about an xyz-wing. It is nice to get a feel for the level of difficulty, but I don't want you to solve the puzzle for me by providing a list of what steps are required. I had a hard time finding the kite in this puzzle, but that was my problem, not yours. Any puzzle that seems to have limited options will always be more time consuming and difficult.
Presently, you are providing most of the activity on this forum and we "all" appreciate it; thanks very much!
Ted |
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wapati
Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
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| Posted: Mon Apr 06, 2009 3:06 am Post subject: |
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| tlanglet wrote: |
Presently, you are providing most of the activity on this forum and we "all" appreciate it; thanks very much!
Ted |
Everything Ted said! |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Mon Apr 06, 2009 5:40 am Post subject: |
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I strive to find puzzles that are challenging without being back breaking. 
If you enjoy finding solutions for them, then that's thanks enough.
Regards, Danny |
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