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Pat
Joined: 23 Feb 2010
Posts: 207
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 Posted: Mon Jun 18, 2012 11:12 am Post subject: VH -- Pat # 178 ## |
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| arkietech wrote: |
| Pat wrote: |
however, it only needs "basic" moves
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Of course. But that is not any fun.
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okay then, here's a puzzle for you --
can't be solved by "basic" moves,
requires something extra
.1...4...9...8.6.........5.....9...6.2.4.1.3.1...2.4...3...2.....8.6...9...3...4.
[ play ] | Code: |
. 1 . | . . 4 | . . .
9 . . | . 8 . | 6 . .
. . . | . . . | . 5 .
-------+-------+------
. . . | . 9 . | . . 6
. 2 . | 4 . 1 | . 3 .
1 . . | . 2 . | 4 . .
-------+-------+------
. 3 . | . . 2 | . . .
. . 8 | . 6 . | . . 9
. . . | 3 . . | . 4 .
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Mon Jun 18, 2012 12:39 pm Post subject: Re: VH -- Pat # 178 ## |
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| Pat wrote: | | requires something extra |
Pat, I like your puzzles  
| Code: | I ran out of basic (lcls) moves here
*-----------------------------------------------------------------------------*
| 235678 1 23567 | 25679 357 4 | 2789 89 2378 |
| 9 b457 23457 | 1257 8 b57 | 6 c127 12347 |
| 234678 4678 23467 | 12679 137 69 | 12789 5 123478 |
|-------------------------+-------------------------+-------------------------|
| 34578 4578 3457 | 578 9 38 | 12 c12 6 |
| 5678 2 5679 | 4 57 1 | 5789 3 578 |
| 1 5789 3579 | 5678 2 368 | 4 89 578 |
|-------------------------+-------------------------+-------------------------|
| 57 3 1579 | 89 4 2 | 1578 6 1578 |
| 2457 a457 8 |a157 6 a57 | 3 27-1 9 |
| 2567 5679 125679 | 3 157 89 | 12578 4 12578 |
*-----------------------------------------------------------------------------*
There are a couple of x-wings here but I like a one step solution plus a hidden pair.
(1=457)r8c246-(4=57)r2c26-(7=12)r24c8 => -1r8c8; lclste (hidden pair)
either r8c4=1 or r24c8=12
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SudoQ
Joined: 02 Aug 2011
Posts: 127
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| Posted: Mon Jun 18, 2012 1:47 pm Post subject: |
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A similar solution pattern: | Code: | |----------------------|-----------------|--------------------|
| 235678 1 23567 | 25679 357 4 | 2789 89 2378 |
| 9 (457) 23457 | 1257 8 (57) | 6 12(7) 12347 |
| 234678 4678 23467 | 12679 137 69 | 12789 5 123478 |
|----------------------|-----------------|--------------------|
| 34578 4578 3457 | 578 9 38 | 12 12 6 |
| 5678 2 5679 | 4 57 1 | 5789 3 578 |
| 1 5789 3579 | 5678 2 368 | 4 89 578 |
|----------------------|-----------------|--------------------|
| 57 3 1579 | 89 4 2 | 1578 6 1578 |
|(24)57 (4)57 8 | 157 6 57 | 3 (27)-1 9 |
| 2567 5679 125679 | 3 157 89 | 12578 4 12578 |
|----------------------|-----------------|--------------------|
r2c2=4 -> r8c1=4 -> r8c8=2
=5 -> r2c6=7 ->
=7 -> -> r8c8=7 => r8c8<>1
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/SudoQ |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Jun 19, 2012 1:41 am Post subject: |
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| I was looking at a horrendous grid loaded with polyvalue cells and was ready to throw in the towel. Then I noticed the 127 triple in c8, after which I used a W-Wing on 89 (apparently not needed) and X-Wings on 7 and 5. |
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Pat
Joined: 23 Feb 2010
Posts: 207
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| Posted: Tue Jun 19, 2012 8:15 am Post subject: |
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| Marty R. wrote: | | X-wings on 7 and 5 |
yes!! i was so hoping someone would notice
solved by "basic" moves + this extra: 2 X-wings
(seen such before, but not very common) |
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