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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Fri Mar 12, 2010 7:23 pm Post subject: Puzzle 10/03/12 Advanced |
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| Code: | +-----------------------+
| . . . | . 4 . | . 9 . |
| . . . | . 7 . | 2 . . |
| . . 7 | . . 8 | . . . |
|-------+-------+-------|
| . . . | 9 . . | . . . |
| 1 9 . | . . . | . 7 6 |
| . . 6 | . . 5 | 9 . 8 |
|-------+-------+-------|
| . 6 . | . . 7 | 4 . 9 |
| 2 . . | . 9 . | . 3 . |
| . . . | . 2 6 | 7 . 5 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sat Mar 13, 2010 2:44 am Post subject: |
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finally created a video of one of Danny's puzzles
here is the VOD
10/3/12/advanced |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sat Mar 13, 2010 6:20 am Post subject: |
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An convoluted move to start the process after basics.
| Code: | *--------------------------------------------------------------------*
| 56 135 2 | 1356 4 13 | 8 9 7 |
| 568 13458 13458 | 1356 7 9 | 2 15 34 |
| 9 1345 7 | 2 135 8 | 15 6 34 |
|----------------------+----------------------+----------------------|
| 7 3458 3458 | 9 6 13 | 135 145 2 |
| 1 9 35 | 4 8 2 | 35 7 6 |
| 34 2 6 | 7 13 5 | 9 14 8 |
|----------------------+----------------------+----------------------|
| 58 6 13 | 1358 135 7 | 4 2 9 |
| 2 7 58 | 58 9 4 | 6 3 1 |
| 34 134 9 | 13 2 6 | 7 8 5 |
*--------------------------------------------------------------------*
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I do not know how to properly annotate this move so my description is mostly English plus an attempt at Eureka at the end.
Look at r3c5: either r3c5=5 or r3c5=13.
If r3c5=13, this forms a 13 pair with r1c6, which
creates a Type 1 UR 56 in r12c14 that forces r2c1=8, which
makes r7c1=5.
Thus we now have pincers on 5 in r3c5 and r7c1 which delete 5 in t7c5.
(5)r3c5 = (13)r3c5|r6c1 - (13=56)r12c6 - UR56r12c14 = (8)r2c1 - (8=5)r7c1; r7c5<>5.
This move did not solve the puzzle but was fun.
A Type 1 UR38 and a xy-wing-348 with pseudocell pincer and transport completed the puzzle.
Ted |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sat Mar 13, 2010 6:52 am Post subject: |
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Ted,
your logic works.
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Mar 13, 2010 8:37 pm Post subject: |
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| A Kite on 1, pivoted in box 6, takes out the 1 from r3c5. A W-Wing on 13, connected by the 3s in c1, takes out the 1 from r7c5. The 35 pair left in c5 finishes it off. |
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