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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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 Posted: Mon Jun 23, 2008 9:50 pm Post subject: Menneske SH like VH |
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Here is a Menneske Super Hard puzzle, but two VH moves knocks it off.
| Code: |
*-----------*
|..9|...|..4|
|...|.1.|.68|
|...|6.3|...|
|---+---+---|
|.93|...|7..|
|...|54.|.8.|
|8..|...|.2.|
|---+---+---|
|36.|.72|.1.|
|.2.|4..|...|
|..1|.8.|...|
*-----------*
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Ted |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Mon Jun 23, 2008 11:40 pm Post subject: |
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not seeing any VH techniques that solve this.
the most powerful move I see is an obvious remote pair/xy-chain/w-wing/m-wing (yes this pattern can be explained as all four).
which leads to another very obvious pattern that other posters love to use in the VH puzzles, but which are not needed in the VH puzzles.
| Code: | .------------------.------------------.------------------.
| 6 17 9 | 278 25 578 | 123 37 4 |
| 257 3 257 | 27 1 4 | 9 6 8 |
| 1247 8 247 | 6 9 3 | 125 57 27 |
:------------------+------------------+------------------:
| 45 9 3 | 128 26 68 | 7 45 16 |
| 127 17 267 | 5 4 679 | 36 8 369 |
| 8 45 67 | 17 3 679 | 45 2 169 |
:------------------+------------------+------------------:
| 3 6 48 | 9 7 2 | 48 1 5 |
| 579 2 578 | 4 56 1 | 368 379 367 |
| 4579 45 1 | 3 8 56 | 246 479 267 |
'------------------'------------------'------------------' |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Tue Jun 24, 2008 12:27 am Post subject: |
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| storm_norm wrote: | not seeing any VH techniques that solve this.
| Code: | .------------------.------------------.------------------.
| 6 17 9 | 278 25 578 | 123 37 4 |
| 257 3 257 | 27 1 4 | 9 6 8 |
| 1247 8 247 | 6 9 3 | 125 57 27 |
:------------------+------------------+------------------:
| 45b 9 3 | 128 26 68 | 7 45a 16 |
| 127 17 267 | 5 4 679 | 36 8 369 |
| 8 45c 67 | 17 3 679 | 45 2 169 |
:------------------+------------------+------------------:
| 3 6 48 | 9 7 2 | 48 1 5 |
| 579 2 578 | 4 56 1 | 368 379 367 |
| 4579 45d 1 | 3 8 56 | 246 -479 267 |
'------------------'------------------'------------------' |
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The Remote Pair <45> (abcd) removes the 4 in r9c8. After some lengthy cleanup, I had a Type 1 UR <36> in r58c79 which made r8c7=8 and that was it.
Ted |
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ravel
Joined: 21 Apr 2006
Posts: 536
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| Posted: Tue Jun 24, 2008 8:57 am Post subject: |
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| Code: | .------------------.------------------.------------------.
| 6 17 9 | 278 25 578 | 123 37 4 |
| 257 3 257 | 27 1 4 | 9 6 8 |
| 1247 8 247 | 6 9 3 | 125 57 27 |
:------------------+------------------+------------------:
| 45 9 3 | 128 26 68 | 7 45 16 |
|*127 *17 #267 | 5 4 #679 |*36 8 #369 |
| 8 45 #67 |*17 3 #679 | 45 2 #169 |
:------------------+------------------+------------------:
| 3 6 48 | 9 7 2 | 48 1 5 |
| 579 2 578 | 4 56 1 | 368 379 367 |
| 4579 45 1 | 3 8 56 | 246 479 267 |
'------------------'------------------'------------------' |
There is another move in this grid from the DP 67/679/69. To destroy it (looking at the rows), one of r5c12 and r6c4 must be 7 - all implying r6c3=6 - or r5c7=6. So r5c3<>6. |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Tue Jun 24, 2008 10:25 pm Post subject: |
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| ravel wrote: | | Code: | .------------------.------------------.------------------.
| 6 17 9 | 278 25 578 | 123 37 4 |
| 257 3 257 | 27 1 4 | 9 6 8 |
| 1247 8 247 | 6 9 3 | 125 57 27 |
:------------------+------------------+------------------:
| 45 9 3 | 128 26 68 | 7 45 16 |
|*127 *17 #267 | 5 4 #679 |*36 8 #369 |
| 8 45 #67 |*17 3 #679 | 45 2 #169 |
:------------------+------------------+------------------:
| 3 6 48 | 9 7 2 | 48 1 5 |
| 579 2 578 | 4 56 1 | 368 379 367 |
| 4579 45 1 | 3 8 56 | 246 479 267 |
'------------------'------------------'------------------' |
There is another move in this grid from the DP 67/679/69. To destroy it (looking at the rows), one of r5c12 and r6c4 must be 7 - all implying r6c3=6 - or r5c7=6. So r5c3<>6. |
Great move Ravel!
Sorry to say, I did not even see it let alone try to solve it. Especially bad since Myth Jellies just provided details on conditions like this.
Ted |
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Myth Jellies
Joined: 27 Jun 2006
Posts: 64
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| Posted: Fri Jun 27, 2008 7:36 am Post subject: |
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(sigh) once again, people start finding these patterns more effectively than I ever could. Time to go invent a new one I guess.
Nice catch, Ravel. |
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