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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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 Posted: Sun Jan 03, 2010 7:22 am Post subject: MM 1636 and 1638 |
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# 1636
000501070300008009010000000067003901004000500195400030000000090400700002020609000
| Code: |
+-------+-------+-------+
| . . . | 5 . 1 | . 7 . |
| 3 . . | . . 8 | . . 9 |
| . 1 . | . . . | . . . |
+-------+-------+-------+
| . 6 7 | . . 3 | 9 . 1 |
| . . 4 | . . . | 5 . . |
| 1 9 5 | 4 . . | . 3 . |
+-------+-------+-------+
| . . . | . . . | . 9 . |
| 4 . . | 7 . . | . . 2 |
| . 2 . | 6 . 9 | . . . |
+-------+-------+-------+
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Play online
-------------
#1638
067000000040230170000074000000040508039000620204060000000150000071003060000000350
| Code: |
+-------+-------+-------+
| . 6 7 | . . . | . . . |
| . 4 . | 2 3 . | 1 7 . |
| . . . | . 7 4 | . . . |
+-------+-------+-------+
| . . . | . 4 . | 5 . 8 |
| . 3 9 | . . . | 6 2 . |
| 2 . 4 | . 6 . | . . . |
+-------+-------+-------+
| . . . | 1 5 . | . . . |
| . 7 1 | . . 3 | . 6 . |
| . . . | . . . | 3 5 . |
+-------+-------+-------+
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wapati
Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
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| Posted: Sun Jan 03, 2010 4:55 pm Post subject: |
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I may not care...
Where went
# 1637 ?  |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Sun Jan 03, 2010 5:37 pm Post subject: |
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| wapati wrote: | I may not care...
Where went
# 1637 ? |
I think the answer is, the hard puzzles are on Friday and Sunday. 1637 would be Saturday, not as difficult.
Keith |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Jan 03, 2010 5:58 pm Post subject: |
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| The Friday and Sunday puzzles are classified as "Diabolical." On 1636 I used coloring, two ERs, XY-Loop, Type 4 UR and Medusa. |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sun Jan 03, 2010 7:10 pm Post subject: |
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| M Tu W Th Sa puzzles usually don't require much more than basics |
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wapati
Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
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| Posted: Sun Jan 03, 2010 11:10 pm Post subject: |
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| Thanks, it seems oddish but Saturday is for wimps! |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Mon Jan 04, 2010 12:48 am Post subject: |
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1636
A kite and a xy-chain
| Code: | *--------------------------------------------------------------------*
| 9 4 28 | 5 36 1 | 2368 7 368 |
| 3 57 6 | 2 47 8 | 14 15 9 |
| 57 1 28 | 39 34679 467 | 23468 2568 34568 |
|----------------------+----------------------+----------------------|
| 2 6 7 | 8 5 3 | 9 4 1 |
| 8 3 4 | 19 19 267 | 5 26 67 |
| 1 9 5 | 4 267 267 | 2678 3 678 |
|----------------------+----------------------+----------------------|
| 6 57 13 | 13 248 24 | 478 9 4578 |
| 4 8 9 | 7 13 5 | 136 16 2 |
| 57 2 13 | 6 48 9 | 13478 158 34578 |
*--------------------------------------------------------------------*
kite 4 leads to
XY-Chain:
(8=7)r7c7-(7=5)r7c2-(5=7)r2c2-(7=4)r2c5-(4=8)r9c5 => r7c5,r9c789<>8
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Mon Jan 04, 2010 12:56 am Post subject: |
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[Edit: resubmitted below]
Last edited by daj95376 on Tue Jan 05, 2010 4:49 am; edited 1 time in total |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Mon Jan 04, 2010 1:08 am Post subject: |
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For MM 1636,
I used a finned x-wing to remove 4 from r7c7,
a skyscraper to remove 5 from r9c8, and
an AIC formed by extending the vertex of a potential xy-wing using the two bivalue cells created in the first two steps:
(1=8)r9c8 - (8=7)r7c7 - (7=5)r7c2 - (5)r2c2 = (5-1)r2c8 = (1)r2c7; r89c7<>1.
Ted |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Tue Jan 05, 2010 4:52 am Post subject: |
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1636:
| Code: | <67> UR r56c69 => r56c6=2 and/or r6c9=8
r56c6=2, r7c6=4, r9c5=8, r9c89<>8, r3c8=8 => r139c9<>8
r6c9=8 => r139c9<>8
+-----------------------------------------------------------------------+
| 9 4 28 | 5 36 1 | 2368 7 368 |
| 3 57 6 | 2 47 8 | 14 15 9 |
| 57 1 28 | 39 34679 467 | 23468 2568 34568 |
|-----------------------+-----------------------+-----------------------|
| 2 6 7 | 8 5 3 | 9 4 1 |
| 8 3 4 | 19 19 *67+2 | 5 26 *67 |
| 1 9 5 | 4 267 *67+2 | 2678 3 *67+8 |
|-----------------------+-----------------------+-----------------------|
| 6 57 13 | 13 248 24 | 478 9 4578 |
| 4 8 9 | 7 13 5 | 136 16 2 |
| 57 2 13 | 6 48 9 | 13478 158 34578 |
+-----------------------------------------------------------------------+
# 74 eliminations remain
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| Code: | r13c37 <28> UR Type 1 <> 28 r3c7
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| Code: | pick your favorite turbot fish elimination for <5>
+-----------------------------------------------------------------------+
| 9 4 28 | 5 36 1 | 28 7 36 |
| 3 57 6 | 2 47 8 | 14 15 9 |
| 57 1 28 | 39 34679 467 | 346 28 3456 |
|-----------------------+-----------------------+-----------------------|
| 2 6 7 | 8 5 3 | 9 4 1 |
| 8 3 4 | 19 19 267 | 5 26 67 |
| 1 9 5 | 4 267 267 | 2678 3 678 |
|-----------------------+-----------------------+-----------------------|
| 6 57 13 | 13 248 24 | 478 9 4578 |
| 4 8 9 | 7 13 5 | 136 16 2 |
| 57 2 13 | 6 48 9 | 13478 158 3457 |
+-----------------------------------------------------------------------+
# 65 eliminations remain
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Tue Jan 05, 2010 5:17 am Post subject: |
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1638:
| Code: | <38+9> XYZ-Wing r3c8/r3c7+r4c8 <> 9 r1c8
r4c6 2-String Kite <> 9 r7c8
c58\r17 Sashimi X-Wing <> 8 r7c6
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| Code: | -9r1c5 8r1c5 8r6c6 9r7c6 [gM-Wing ] <> 9 r89c5
+-----------------------------------------------------------------------+
| 3 6 7 | 589 a89 1 | 2489 48 259 |
| 9 4 58 | 2 3 b568 | 1 7 56 |
| 1 28 258 | 5689 7 4 | 89 39 3569 |
|-----------------------+-----------------------+-----------------------|
| 7 1 6 | 39 4 2 | 5 39 8 |
| 8 3 9 | 57 1 57 | 6 2 4 |
| 2 5 4 | 389 6 c89 | 79 1 379 |
|-----------------------+-----------------------+-----------------------|
| 46 289 3 | 1 5 d69 | 24789 48 279 |
| 5 7 1 | 489 28-9 3 | 2489 6 29 |
| 46 289 28 | 467 28-9 67 | 3 5 1 |
+-----------------------------------------------------------------------+
# 62 eliminations remain
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| Code: | c28\r37 Sashimi X-Wing <> 8 r3c7
+-----------------------------------------------------------------------+
| 3 6 7 | 58 9 1 | 248 48 25 |
| 9 4 58 | 2 3 568 | 1 7 56 |
| 1 28 258 | 568 7 4 | 89 39 3569 |
|-----------------------+-----------------------+-----------------------|
| 7 1 6 | 39 4 2 | 5 39 8 |
| 8 3 9 | 57 1 57 | 6 2 4 |
| 2 5 4 | 389 6 89 | 79 1 379 |
|-----------------------+-----------------------+-----------------------|
| 46 28 3 | 1 5 69 | 24789 48 279 |
| 5 7 1 | 49 28 3 | 2489 6 29 |
| 46 9 28 | 467 28 67 | 3 5 1 |
+-----------------------------------------------------------------------+
# 51 eliminations remain
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