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KSipher
Joined: 24 Sep 2006
Posts: 38
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 Posted: Wed Sep 27, 2006 9:06 pm Post subject: misery (DS Sep 26, 2006) |
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Hi
I've been looking at this for two days and I don't see how the hint (the red 7) was determined. Can anyone put me out of my misery?
Kathy
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gohast
Joined: 26 Sep 2006
Posts: 18
Location: Dublin, Ireland
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| Posted: Wed Sep 27, 2006 10:14 pm Post subject: |
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I nearly got stuck here as well. In the end it needed three X wings to eliminate enough candidates to solve the puzzle. So...look for X wings  |
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TexCat
Joined: 07 Jul 2006
Posts: 32
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| Posted: Wed Sep 27, 2006 10:50 pm Post subject: |
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May not solve the puzzle, but explains the hint:
The 7's in box 9 are in row 8 --> 7's in box 8 are in column 6 --> 7 in box 5 is at R4C5. |
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sava
Joined: 27 Sep 2006
Posts: 1
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| Posted: Wed Sep 27, 2006 10:52 pm Post subject: |
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hi there,
look at row 8, column 7,8,9 there is the only place for "7" and this eliminates "7" from r8c4. You will see triple in c4, r568. Eliminates "2" from c4, r1,r2. You see pair "47" so exclude "7" from r1c5, r2c6. Only place for "7" in c5 is r4c5.
Good luck. |
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KSipher
Joined: 24 Sep 2006
Posts: 38
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| Posted: Thu Sep 28, 2006 12:15 am Post subject: |
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Thanks! It all makes sense now. I'm still learning but find this site so helpful! Thanks so much!
Kathy |
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kowloon
Joined: 28 Sep 2006
Posts: 3
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| Posted: Thu Sep 28, 2006 1:34 am Post subject: Sept 26 very hard |
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Since we're talking about the Sept. 26 puzzle, why can't I see the x-wings? I have the same numbers as Kathy except the 9 in the middle box but I do have the 7. I'm looking for the x-wings and can't find them.
Thanks |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Thu Sep 28, 2006 3:03 am Post subject: |
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"Basic" moves get you to this point:
| Code: | +----------------+----------------+----------------+
| 2348 59 59 | 47 28 6 | 2378 1 238 |
| 46 1 28 | 47 3 28 | 5 67 9 |
| 2368 7 238 | 1 9 5 | 238 68 4 |
+----------------+----------------+----------------+
| 23 4 1 | 5 7 2389 | 28 89 6 |
| 5 8 269 | 26 1 29 | 4 3 7 |
| 7 269 2369 | 236 28 4 | 1 589 258 |
+----------------+----------------+----------------+
| 1 56 567 | 8 4 37 | 9 2 35 |
| 9 25 4 | 23 6 1 | 378 578 358 |
| 28 3 278 | 9 5 27 | 6 4 1 |
+----------------+----------------+----------------+ |
Note that there is a remote naked pair, a chain of <28> from R2C3 to R6C5, that takes out <2> in R6C3. This is also coloring on <2> and, if you draw the pattern, you will have a Turbot fish that (for once) actually looks like a fish! Note that the useful chain has three links, an odd number.
The X-wing is on <2> in C59.
Keith |
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mazzinger12
Joined: 29 Sep 2006
Posts: 2
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| Posted: Fri Sep 29, 2006 5:09 pm Post subject: |
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I've got stucked here:
The hint option says that the next step is 4 in R4C2, but just can't see why!!
3 days in this hole!!! 
________
GM FOODS
Last edited by mazzinger12 on Sat Mar 12, 2011 2:29 am; edited 1 time in total |
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Angel
Joined: 26 Mar 2006
Posts: 31
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| Posted: Fri Sep 29, 2006 6:32 pm Post subject: |
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You have a hidden pair in your candidates for row 1: 5 and 9 only appear in columns 2 and 3.
Therefore you can eliminate other candidates from r1c2 and r1c3. Once you have done this there is only one place for the 4 in column 2: r4c2.
Good luck from here on. |
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mazzinger12
Joined: 29 Sep 2006
Posts: 2
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| Posted: Fri Sep 29, 2006 8:31 pm Post subject: |
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You were right!!! 
Thanks!!! very easy from that point.........
________
Free gift card |
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