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Log in| Search found 119 matches |
| Author | Message |
|---|---|
 Topic: June 21 VH |
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| sdq_pete Replies: 17 Views: 77385 |
 Forum: Daily Sudoku puzzles Posted: Mon Jun 21, 2010 11:50 am Subject: June 21 VH |
| Yes, I applied the XY-wing quite some way before finishing the basics. | |
| Topic: May 3 VH |
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| sdq_pete Replies: 6 Views: 33099 |
Forum: Daily Sudoku puzzles Posted: Mon May 03, 2010 1:29 pm Subject: May 3 VH |
| I found a 259 XY wing enough
Peter |
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| Topic: Aug 11 VH |
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| sdq_pete Replies: 7 Views: 45318 |
Forum: Daily Sudoku puzzles Posted: Tue Aug 11, 2009 12:34 pm Subject: Aug 11 VH |
| There's a column X-wing on 8, though it doesn't help much. For the rest, I too could only see the W-wing. | |
| Topic: Daily Sudoku:Thu 6-Aug-2009 VH |
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| sdq_pete Replies: 9 Views: 46477 |
Forum: Daily Sudoku puzzles Posted: Thu Aug 06, 2009 7:33 pm Subject: Daily Sudoku:Thu 6-Aug-2009 VH |
| On my first attempt, the puzzle fell apart with simple box line interactions. So I tried again from a different approach and the same thing happened. Have I been twice lucky (or unlucky!) or have othe ... | |
| Topic: June 25 VH |
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| sdq_pete Replies: 12 Views: 53471 |
Forum: Daily Sudoku puzzles Posted: Fri Jun 26, 2009 12:42 pm Subject: June 25 VH |
| No. This XYZ is unproductive. Any eliminations from an XYZ are always in the same block as the tri-value AND the same row containing the tri-value and the external bi-value. If you follow me. i.e. any ... | |
| Topic: June 9 VH |
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| sdq_pete Replies: 7 Views: 36521 |
Forum: Daily Sudoku puzzles Posted: Tue Jun 09, 2009 10:07 am Subject: June 9 VH |
| The UR arose about half-way through filling in the basics, so something of a non-issue.
Peter |
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| Topic: May 17 VH |
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| sdq_pete Replies: 9 Views: 41520 |
Forum: Daily Sudoku puzzles Posted: Sun May 17, 2009 1:22 pm Subject: May 17 VH |
| There's a simple XY on 123 - see R4C4.
Peter |
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| Topic: April 21 VH |
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| sdq_pete Replies: 5 Views: 29002 |
Forum: Daily Sudoku puzzles Posted: Tue Apr 21, 2009 3:45 pm Subject: April 21 VH |
| After basics, this one was so nearly complete, I just chose a bivalue cell and assumed a value to see whether it lead to a contradiction (which it did) and accordingly filled in the other value... O.K ... | |
| Topic: April 12 VH |
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| sdq_pete Replies: 8 Views: 43660 |
Forum: Daily Sudoku puzzles Posted: Sun Apr 12, 2009 4:53 pm Subject: April 12 VH |
| Or Rows 6 and 7
Peter |
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| Topic: Far Too Long Between VHs |
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| sdq_pete Replies: 11 Views: 49485 |
Forum: Daily Sudoku puzzles Posted: Sat Apr 04, 2009 1:01 pm Subject: Far Too Long Between VHs |
| A straightforward one: a single XY (179) finishes it off.
Peter |
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| Topic: March 25 VH |
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| sdq_pete Replies: 5 Views: 30928 |
Forum: Daily Sudoku puzzles Posted: Wed Mar 25, 2009 11:24 am Subject: March 25 VH |
| I didn't seem to need anything at all until near the end when I came across the W-wing on 23
Peter |
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| Topic: March 20 VH |
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| sdq_pete Replies: 15 Views: 71225 |
Forum: Daily Sudoku puzzles Posted: Fri Mar 20, 2009 11:06 am Subject: March 20 VH |
| Well, this was my position after basics:
+--------------+-------------+---------------+ | 34 6 1 | 9 7 2 | 35 8 345 | | 9 24 234 | 1 5 8 | 367 467 347 | | 8 5 7 ... |
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| Topic: March 17 VH |
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| sdq_pete Replies: 7 Views: 36776 |
Forum: Daily Sudoku puzzles Posted: Tue Mar 17, 2009 1:23 pm Subject: March 17 VH |
| It was a XY for me. I didn't note it but I think it was 359 with pivot at R4C4.
Peter |
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| Topic: Very Hard, March 10 |
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| sdq_pete Replies: 8 Views: 42503 |
Forum: Daily Sudoku puzzles Posted: Tue Mar 10, 2009 2:48 pm Subject: Very Hard, March 10 |
| Yes, X-wing on 8 (which I spotted quite quickly for once) and XY on 389
Peter |
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| Topic: Feb. 17 VH |
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| sdq_pete Replies: 5 Views: 33884 |
Forum: Daily Sudoku puzzles Posted: Tue Feb 17, 2009 10:55 am Subject: Feb. 17 VH |
| A very quick one, with XY 179 (R7C3)
Peter |
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| Topic: Jan 17 VH |
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| sdq_pete Replies: 7 Views: 35913 |
Forum: Daily Sudoku puzzles Posted: Sat Jan 17, 2009 12:07 pm Subject: Jan 17 VH |
| ditto! | |
| Topic: Jan 15 VH |
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| sdq_pete Replies: 3 Views: 26160 |
Forum: Daily Sudoku puzzles Posted: Thu Jan 15, 2009 7:49 pm Subject: Jan 15 VH |
| As a matter of interest, the first thing I came across - which also solved the puzzle in one move - was a W-wing based on the 19's in C23 and eliminating the 9 in R6C3.
Peter |
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| Topic: Dec 8 VH |
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| sdq_pete Replies: 8 Views: 52498 |
Forum: Daily Sudoku puzzles Posted: Tue Dec 09, 2008 11:31 am Subject: Dec 8 VH |
| I think I shall have to install a keystroke recorder...
Peter |
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| Topic: Dec 8 VH |
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| sdq_pete Replies: 8 Views: 52498 |
Forum: Daily Sudoku puzzles Posted: Mon Dec 08, 2008 11:23 am Subject: Dec 8 VH |
| Well, for the second time in succession, no advanced techniques at all and very quick (by my standards)...
Peter |
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| Topic: Dec 5 VH |
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| sdq_pete Replies: 8 Views: 37721 |
Forum: Daily Sudoku puzzles Posted: Sat Dec 06, 2008 3:54 pm Subject: Dec 5 VH |
| Well, Wendy (et al.), on a second look I passed by this stage
+-----------------+----------------+--------------+ | 2389 2379 23789 | 1345 6 2459 | 129 259 145 | | 239 4 1 | 35 2359 ... |
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