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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sat Jan 31, 2009 1:14 pm Post subject: Set J Puzzle 15 -- VH+ |
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| Code: | +-----------------------+
| 5 . 4 | . . . | . . . |
| . 8 7 | . 5 . | . 4 . |
| 9 3 . | . 8 2 | . . . |
|-------+-------+-------|
| . . . | 6 3 . | . . . |
| . 9 6 | 2 . . | 8 3 . |
| . . 3 | . . 8 | 7 . . |
|-------+-------+-------|
| . . . | . 7 9 | 4 . . |
| . 7 . | . 2 . | . 9 . |
| . . . | . . . | . . 6 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site
===== ===== ===== ===== ===== ===== ===== ===== ===== Ratings
Can be solved using steps from ...
Basics: Naked/Hidden Single, Naked Pair/Triple, Locked Candidate 1/2
Basics+: Naked Quad, Hidden Pair/Triple/Quad
VH: BUG+1, UR Type 1, X-Wing, XY-Wing, XYZ-Wing
VH+: 2-String Kite, Empty Rectangle, Remote Pair, Skyscraper, Colors, UR Type 2
Advanced: finned X-Wing, Multiple Colors, Swordfish, M-Wing, W-Wing, XY-Chain
Extreme: Jellyfish, (but mostly) Chain |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sat Jan 31, 2009 8:56 pm Post subject: |
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| Code: | .---------------------.---------------------.---------------------.
| 5 2 4 | 7 6 13 | 139 18 1389 |
| 6 8 7 | 9 5 13 | 123 4 123 |
| 9 3 1 | 4 8 2 | 6 5 7 |
:---------------------+---------------------+---------------------:
| 1278 145 258 | 6 3 457 | 1259 12 12459 |
| 17 9 6 | 2 14 457 | 8 3 145 |
| 12 145 3 | 15 9 8 | 7 6 1245 |
:---------------------+---------------------+---------------------:
| 1238 6 258 | 1358 7 9 | 4 128 12358 |
| 4 7 58 | 1358 2 6 | 135 9 1358 |
| 238 15 9 | 38 14 45 | 23 7 6 |
'---------------------'---------------------'---------------------' |
(1)... r6c4 = r5c5 - r9c5 = r9c2; r6c2 <> 1
(5)... r6c4 = r78c4 - r9c6 = r9c2; r6c2 <> 5
UR type 1 {1,3} removes 1 and 3 from r2c8 |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun Feb 01, 2009 2:08 pm Post subject: |
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Also a three-stepper: | Quote: | ER <1> pivot box <7> and strong link col <5>,
x-wing <2> r47c38,
kite <5> pivot box <5> |
Ted |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Sun Feb 01, 2009 5:08 pm Post subject: |
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X-wing <2>.
W-wing 1-5.
W-wing 1-5. (A different one.)
These W-wings can also be seen as XY-chains or extended XY-wings.
WX-XY-XY-WX with pincer W.
They happen to be
15-14-14-15, and
15-13-13-15.
Keith |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Feb 03, 2009 5:37 am Post subject: |
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| I used a bunch of ERs, an X-Wing on 4 and finished with a UR on 13. |
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