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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Fri Jul 15, 2011 5:44 pm Post subject: Puzzle 11/07/15: ~ Advanced |
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Code: | +-----------------------+
| . . . | . . . | . 8 . |
| . 9 4 | 5 2 . | 7 6 . |
| . 1 6 | . 4 7 | . 2 . |
|-------+-------+-------|
| . 5 . | . . 6 | . 1 8 |
| . 8 1 | . 5 . | . . . |
| . . 7 | 4 . 1 | . . . |
|-------+-------+-------|
| . 6 . | . . . | . 7 . |
| 5 4 8 | 7 . . | 6 . . |
| . . . | 6 . . | . . . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Sat Jul 16, 2011 9:26 pm Post subject: |
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Sometimes I like to try new techniques on less challenging puzzles. It may be heavy-handed but it is a learning opportunity and is fun.
Code after basics:
Code: | *-----------------------------------------------------------*
| 7 2 5 | 1 6 39 |#349 8 349 |
| 3 9 4 | 5 2 8 | 7 6 1 |
| 8 1 6 | 39 4 7 |-359 2 359 |
|-------------------+-------------------+-------------------|
| 4 5 29 | 239 7 6 |*239 1 8 |
| 6 8 1 | 239 5 39 |*2349 34-9 7 |
| 29 3 7 | 4 8 1 |*259 @59 6 |
|-------------------+-------------------+-------------------|
| 29 6 239 | 8 39 45 | 1 7 45 |
| 5 4 8 | 7 1 2 | 6 39 39 |
| 1 7 39 | 6 39 45 | 8 45 2 |
*-----------------------------------------------------------* |
Almost Sue de Coq (23459) b6c7, marked *
ab=(34)r1c7 with fin (9)r1c7, marked #
cd=(59)r6c8, marked @
e=(2)r56c7
SdC(23459); r3c7<>3, r5c8<>9
If fin is true: (9)r1c7-r13c9=r8c9-(9=3)r8c8-r5c8=r45c7; r3c7<>3
If fin is true: (9)r1c7-r1c6=r5c6; r5c8<>9
A kite (3) with pivot in b5 completes the puzzle.
Ted |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Tue Jul 19, 2011 4:43 am Post subject: |
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I think I butchered this thing, using a Type 1, Type 4, Finned X-Wing and XY-Chain. |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Tue Jul 19, 2011 3:21 pm Post subject: |
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Marty, here's my solver's solution.
Code: | r79c35 <39> UR Type 1.2223 <> 39 r7c3
r4c6 2-String Kite <> 3 r1c7
<34+9> XYZ-Wing r1c9/r1c7+r8c9 <> 9 r3c9 excessive
r45c47 <23> UR Type 4.2233 <> 3 r5c47
c47 X-Wing <> 3 r3c9
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Note: the XYZ-Wing can be ignored and replaced by an XY-Wing after the X-Wing.
Regards, Danny |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Tue Jul 19, 2011 3:38 pm Post subject: |
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That makes me feel better about my four moves. |
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