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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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 Posted: Fri Nov 21, 2008 6:47 am Post subject: Vanhegan Fiendish Fri Nov. 21 |
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Today's Vanhegan fiendish:
| Code: |
+-----------+-----------+-----------+
| . . . | . . 5 | . . 7 |
| . . . | 1 8 . | . 5 . |
| 9 5 2 | . . 3 | . . . |
+-----------+-----------+-----------+
| 2 . 7 | 4 . . | . 8 3 |
| . . . | . 1 . | . . . |
| 3 6 . | . . 8 | 4 . 1 |
+-----------+-----------+-----------+
| . . . | 5 . . | 8 2 4 |
| . 2 . | . 6 4 | . . . |
| 5 . . | 7 . . | . . . |
+-----------+-----------+-----------+
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play online
Hint: concentrate on number nine ... |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Fri Nov 21, 2008 7:08 am Post subject: |
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During basics, a UR(48) /w sl (8) in col 3 removes 4 from r5c2.
After basics (and the UR mentioned above), two kites (9):
one in row 4, col 4 (r1c7<>9)
one in row 8, col 2 (r5c8<>9)
After that, a whole bunch of flightless wings, all of them somehow involving a few nines:
w-wings, m-wings and one flightless but really really useful XY-wing (389) in row 1 col 2
Transport one end (r1c8) of this xy-wing via row 1 and col 4 and get: r6c3<>9
Continue from there [using the w-wing (9)r4c7=r6c3] to set r4c7=9
I was hoping for an xy-loop but did not see one.
| Code: |
+--------------------------+--------------------------+--------------------------+
| 68 38 1 | 29 4 5 | 236 39 7 |
| 467 347 346 | 1 8 29 | 2369 5 269 |
| 9 5 2 | 6 7 3 | 1 4 8 |
+--------------------------+--------------------------+--------------------------+
| 2 1 7 | 4 59 6 | 59 8 3 |
| 48 89 4589 | 3 1 7 | 259 6 29 |
| 3 6 59 | 29 259 8 | 4 7 1 |
+--------------------------+--------------------------+--------------------------+
| 67 379 369 | 5 39 1 | 8 2 4 |
| 1 2 39 | 8 6 4 | 7 39 5 |
| 5 48 48 | 7 239 29 | 369 1 69 |
+--------------------------+--------------------------+--------------------------+
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It felt like the puzzle was solved there, but I encountered one more obstacle: a BUG+3 near the very end. (used a xy-wing to finish it off) |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Nov 21, 2008 11:38 am Post subject: |
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I found an er(9), the 369 xy-wing, then it got nasty. Took an xy-chain, finned sword and another xy-chain to break it to singles.
What a trip  Hope someone finds a shorter route. |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Fri Nov 21, 2008 6:41 pm Post subject: |
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| Quote: | | What a trip Hope someone finds a shorter route |
this forum proves that "shorter route" is very subjective according to one's personal view on techniques. if the object is to get done in fewest moves then one grouped singles chain on 9, then one very long AIC will do it.
on the other hand, like nataraj's solution, if "shorter route" means being able to spot techniques in rapid succession to finish, then the solution path may be 5 steps. but probably solving it in the same amout of time that the long AIC took to find.
with enough weaponry stashed in the back pocket, you can probably fire enough rounds to to at least mame the beast and go in for the kill. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Nov 21, 2008 8:28 pm Post subject: |
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| storm_norm wrote: | this forum proves that "shorter route" is very subjective according to one's personal view on techniques. if the object is to get done in fewest moves then one grouped singles chain on 9, then one very long AIC will do it.
on the other hand, like nataraj's solution, if "shorter route" means being able to spot techniques in rapid succession to finish, then the solution path may be 5 steps. but probably solving it in the same amout of time that the long AIC took to find.. |
And I enjoy the diversity of techniques. My personal preference is short, elegant solutions which does not include long AIC chains.
The issue .. what is elegant  
Thanks for the input. |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Fri Nov 21, 2008 8:42 pm Post subject: |
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| arkietech wrote: |
The issue .. what is elegant
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I could go on ...  |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Fri Nov 21, 2008 9:47 pm Post subject: |
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A non-elegant solution that could be shortened ... but I didn't.
| Code: | Kite [r5c4] => [r1c7]<>9
ER [r5b8] => [r9c7]<>9
ER [r8b4] => [r5c8]<>9
UR [r25c79] (29) => [r2c7]<>9
X-Wing c69\r29 => [r9c5]<>9
UR [r59c23] (48) => [r5c2]<>4 (nataraj's)
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| Code: | 4-cell XY-Chain a-b-c-d
+--------------------------------------------------------------+
| a68 b38 1 | 29 4 5 | 23-6 c39 7 |
| 47-6 347 34-6 | 1 8 29 | 236 5 d69 |
| 9 5 2 | 6 7 3 | 1 4 8 |
|--------------------+--------------------+--------------------|
| 2 1 7 | 4 59 6 | 59 8 3 |
| 48 89 4589 | 3 1 7 | 59 6 2 |
| 3 6 59 | 29 259 8 | 4 7 1 |
|--------------------+--------------------+--------------------|
| 67 379 369 | 5 39 1 | 8 2 4 |
| 1 2 39 | 8 6 4 | 7 39 5 |
| 5 48 48 | 7 23 29 | 36 1 69 |
+--------------------------------------------------------------+
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Nov 21, 2008 10:18 pm Post subject: |
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| I used a couple of W-Wings, two kites and an X-Wing, then used Medusa instead of an XY-Chain. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Nov 21, 2008 10:23 pm Post subject: |
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Did you know Ginger Rogers could do every Fred Astaire did, only in high heels and backward? 
e=mc2 is very short and elegent  |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Nov 21, 2008 10:28 pm Post subject: |
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| Quote: | | e=mc2 is very short and elegent |
Dan, it's e=mc˛ |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Fri Nov 21, 2008 10:29 pm Post subject: |
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| arkietech wrote: | Did you know Ginger Rogers could do every [step] Fred Astaire did, only in high heels and backward?
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Of course. That is the lady's task in ballroom 
Q: did she invent the steps?
Q: did she lead? no. that would not be proper ...
Q: did she put the spark into their dancing? I believe so, yes
And: They weren't doing ballroom, but showdance. I checked. Look at this:
Cheek to Cheek
Smoke Gets in Your Eyes
Night and Day, dance starts at 1:42
or this Begin the Beguine There are actually quite few parts where they are not both facing the audience or doing turns together, and of these, it seems that Mr.Astaire is going backward more often than forward. I'd not have thought ...
Very interesting ... the things we learn when playing (or discussing) "sudoku" |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Fri Nov 21, 2008 11:12 pm Post subject: |
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| arkietech wrote: | | e=mc2 is very short and elegant |
Whereas Ms. Moss is very elegant and not short at all |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sat Nov 22, 2008 9:40 am Post subject: |
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the king
the queen
the biggest
peregrine falcon: the fastest.
 |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Sat Nov 22, 2008 11:06 pm Post subject: |
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Instead of my 4-cell XY-Chain above, there's a (59) DP in [band 2].
| Code: | [r5c3]=4 => [r5c1]=8 => [r5c2]=9 => [r6c3]<>9
[r5c3]=8 => [r5c2]=9 => [r6c3]<>9
[r6c5]=2 => [r6c4]=9 => [r6c3]<>9
+--------------------------------------------------------------+
| 68 38 1 | 29 4 5 | 236 39 7 |
| 467 347 346 | 1 8 29 | 236 5 69 |
| 9 5 2 | 6 7 3 | 1 4 8 |
|--------------------+--------------------+--------------------|
| 2 1 7 | 4 59 6 | 59 8 3 |
| 48 89 59+48 | 3 1 7 | 59 6 2 |
| 3 6 5-9 | 29 59+2 8 | 4 7 1 |
|--------------------+--------------------+--------------------|
| 67 379 369 | 5 39 1 | 8 2 4 |
| 1 2 39 | 8 6 4 | 7 39 5 |
| 5 48 48 | 7 23 29 | 36 1 69 |
+--------------------------------------------------------------+
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Make that advanced mediocre at manual solving! |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sat Nov 22, 2008 11:36 pm Post subject: |
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I just got around to working on this Vanhegan. It was a difficult one for me but after eight steps I was able to finish it off using solutions similar to the ones already mentions, but I suspect not all were really necessary.
Probably now time for a mental rest (sometimes referred to as a nap).
Ted |
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