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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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 Posted: Tue May 22, 2012 5:35 am Post subject: au tough 5/22/12 |
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| Code: |
*-----------*
|19.|...|35.|
|6..|.7.|.8.|
|...|4..|...|
|---+---+---|
|.61|...|...|
|3..|.5.|..8|
|...|...|61.|
|---+---+---|
|...|..9|...|
|.7.|.2.|..5|
|.59|...|.23|
*-----------*
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SudoQ
Joined: 02 Aug 2011
Posts: 127
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| Posted: Tue May 22, 2012 9:57 am Post subject: |
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Nice puzzle!
| Code: | r1c3=7 -> ->
r1c9=7 -> r5c7/8=7 -> r5c3<>7 |
/SudoQ |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Tue May 22, 2012 11:29 am Post subject: |
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| Code: |
*--------------------------------------------------------------------*
| 1 9 4-7 | 268 68 268 | 3 5 *47 |
| 6 234 245 | 139 7 135 | 24 8 19 |
| 57 238 2578 | 4 139 135 | 27 6 19 |
|----------------------+----------------------+----------------------|
| 79 6 1 | 2789 489 2478 | 5 3 *247 |
| 3 24 *247 | 16 5 16 |*479 *479 8 |
| 579 48 4578 | 2379 349 2347 | 6 1 *247 |
|----------------------+----------------------+----------------------|
| 2 1 3 | 5 48 9 | 478 47 6 |
| 48 7 6 | 138 2 1348 | 1489 49 5 |
| 48 5 9 | 1678 1468 14678 | 148 2 3 |
*--------------------------------------------------------------------*
Box kite??
(7)r1c9=r46c9-r5c78=(7)r5c3 => r1c3<>7; lclste
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SudoQ
Joined: 02 Aug 2011
Posts: 127
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| Posted: Tue May 22, 2012 11:48 am Post subject: |
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| arkietech wrote: | | Box kite?? |
I have seen the name "Empty Rectangle".
This can eliminated 4 or 7 from cell r5c3.
But with your solution the puzzle is completed easier!
/SudoQ |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Tue May 22, 2012 12:54 pm Post subject: |
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"7s" were the key to solving this puzzle in a standard manner. After doing so, I looked for some fun, long solutions. Here are two that use some of the same logic as already posted......
axy-wing(57-2)r3c1+r2c3/r3c7=(4)r2c3-(4=7)r1c3-(7=5)r3c1-(5=79)r64c1-(7=24)r5c32-(4)r5c78=r46c9-(4=7)r1c9-(7=2)r3c7; r2c7,r3c23<>2
almost SdC(24578)r123c3
ab=(24)r5c3
cd(57)r3c1
e=(8)r3c3
fin (7)r5c3
almost SdC(24578)r123c3=(7)r5c3-r5c78=r46c9-r1c9=r1c3 => conflict; r5c3<>7
Thus SdC is true; r6c3<>4, r3c2,r6c3<>8
Ted |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Tue May 22, 2012 1:38 pm Post subject: |
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| tlanglet wrote: | axy-wing(57-2)r3c1+r2c3/r3c7=(4)r2c3-(4=7)r1c3-(7=5)r3c1-(5=79)r64c1-(7=24)r5c32-(4)r5c78=r46c9-(4=7)r1c9-(7=2)r3c7; r2c7,r3c23<>2
almost SdC(24578)r123c3
ab=(24)r5c3
cd(57)r3c1
e=(8)r3c3
fin (7)r5c3
almost SdC(24578)r123c3=(7)r5c3-r5c78=r46c9-r1c9=r1c3 => conflict; r5c3<>7
Thus SdC is true; r6c3<>4, r3c2,r6c3<>8
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Thanks Ted.
Two wild rides.  |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue May 22, 2012 4:54 pm Post subject: |
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| arkietech wrote: | | Code: |
*--------------------------------------------------------------------*
| 1 9 4-7 | 268 68 268 | 3 5 *47 |
| 6 234 245 | 139 7 135 | 24 8 19 |
| 57 238 2578 | 4 139 135 | 27 6 19 |
|----------------------+----------------------+----------------------|
| 79 6 1 | 2789 489 2478 | 5 3 *247 |
| 3 24 *247 | 16 5 16 |*479 *479 8 |
| 579 48 4578 | 2379 349 2347 | 6 1 *247 |
|----------------------+----------------------+----------------------|
| 2 1 3 | 5 48 9 | 478 47 6 |
| 48 7 6 | 138 2 1348 | 1489 49 5 |
| 48 5 9 | 1678 1468 14678 | 148 2 3 |
*--------------------------------------------------------------------*
Box kite??
(7)r1c9=r46c9-r5c78=(7)r5c3 => r1c3<>7; lclste
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I've never heard of a Box Kite, but the Sashimi X-Wing in r15 sets r46c9<>7. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Tue May 22, 2012 5:20 pm Post subject: |
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| Marty R. wrote: | | I've never heard of a Box Kite |
I haven't either but that is what it is-- box 6 with two strings. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue May 22, 2012 5:56 pm Post subject: |
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| arkietech wrote: | | Marty R. wrote: | | I've never heard of a Box Kite |
I haven't either but that is what it is-- box 6 with two strings. |
Just for the sake of discussion, what's the difference between a Kite and Box Kite since all Kites emanate from a box? Box Kite seems to be a redundancy. Maybe a more appropriate name would be Grouped Kite. But whatever it's called, it's very nice and not something I would've spotted. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Tue May 22, 2012 6:57 pm Post subject: |
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| Marty R. wrote: | | Just for the sake of discussion, what's the difference between a Kite and Box Kite since all Kites emanate from a box? Box Kite seems to be a redundancy. Maybe a more appropriate name would be Grouped Kite. But whatever it's called, it's very nice and not something I would've spotted. |
I don't know -- it just came to me, I remember fllying box kites as a kid. Don't see them anymore. Call it a boy remembering== nothing more.
It is a grouped discontinous loop to many. |
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