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Set N Puzzle 9 -- modest VH

dailysudoku.com Forum Index -> Puzzles by daj

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Mon Feb 09, 2009 6:58 am Post subject: Set N Puzzle 9 -- modest VH

Less difficult than recent VH posts.

Code:

+-----------------------+
| . . . | 3 8 . | . 7 1 |
| . 7 . | 5 . 9 | . 8 . |
| . . 3 | . . . | . . . |
|-------+-------+-------|
| 4 5 . | . . . | 8 2 . |
| 2 . . | . 4 . | . . 3 |
| . 3 . | . . 5 | . . 4 |
|-------+-------+-------|
| . . . | 7 . . | 1 . . |
| 7 2 . | 4 . . | . 5 . |
| 3 . . | . 9 2 | . . . |
+-----------------------+

Play this puzzle online at the Daily Sudoku site

===== ===== ===== ===== ===== ===== ===== ===== ===== Ratings are Accumulative

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/Sashimi X-Wing, Multiple Colors, Swordfish, M-Wing, W-Wing, XY-Chain

Extreme: Jellyfish, (but mostly) Chain

storm_norm

Joined: 18 Oct 2007
Posts: 1741

Posted: Mon Feb 09, 2009 8:30 pm Post subject:

Code:

.---------------------.---------------------.---------------------.
| 5 M69 2 | 3 8 *46 |M49 7 1 |
| 1 7 4 | 5 2 9 | 3 8 6 |
| 689 689 3 | 16 167 *1467 | 2 *49 5 |
:---------------------+---------------------+---------------------:
| 4 5 1679 | 169 1367 1367 | 8 2 79 |
| 2 169 1679 | 1689 4 1678 | 5 169 3 |
| 689 3 16789 | 2 167 5 | 679 169 4 |
:---------------------+---------------------+---------------------:
| 689 4 689 | 7 5 68 | 1 3 2 |
| 7 2 168 | 4 136 1368 |M69 5 89 |
| 3 168 5 | 168 9 2 | 467 *4-6 78 |
'---------------------'---------------------'---------------------'

Quote:

extended M-wing
(6=9)r8c7 - (9)r1c7 = (9-6)r1c2 = (6-4)r1c6 = (4)r3c6 - (4)r3c8 = (4)r9c8; r9c8 <> 6

wapati

Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.

Posted: Mon Feb 09, 2009 9:43 pm Post subject:

One xy-wing does it also.

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