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AU tough September 6, 2012

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arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Sat Sep 08, 2012 6:36 am Post subject: AU tough September 6, 2012

Code:

*-----------*
|.84|9..|1..|
|...|...|6.5|
|...|..2|7..|
|---+---+---|
|3..|...|...|
|.2.|7.1|.9.|
|...|...|..6|
|---+---+---|
|..5|4..|...|
|6.3|...|...|
|..9|..7|46.|
*-----------*

Play/Print this puzzle online

tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Sat Sep 08, 2012 12:53 pm Post subject:

Code after basics:

Code:

*--------------------------------------------------------------------*
| 7 8 4 | 9 56 56 | 1 23 23 |
| 9 3 2 | 1 7 48 | 6 48 5 |
| 5 6 1 | 38 348 2 | 7 48 9 |
|----------------------+----------------------+----------------------|
| 3 59 7 | 6 2589 589 | 258 1 4 |
| 4 2 6 | 7 358 1 | 358 9 38 |
| 1 59 8 | 35 23459 3459 | 235 7 6 |
|----------------------+----------------------+----------------------|
| 28 7 5 | 4 3689 3689 | 389 23 1 |
| 6 4 3 | 2 1 89 | 89 5 7 |
| 28 1 9 | 358 358 7 | 4 6 238 |
*--------------------------------------------------------------------*

Two views of the same set of cells..........
1: AXY-wing(35-8)r6c4+r3c4|r4c6=9r4c6-(9=8)r8c6; -8r2c6
2: ANP(89=5)r84c6-(5=3)r6c4-(3=8)r3c4; -8r2c6

Interesting but seemingly useless finned x-wing(3)r67c67 with fin 3r5c7. The initial finned x-wing does not provide any direct eliminations, but transporting the fin gives.......
(3-5)r5c7=5r5c-(5=3)r6c4*-3r3c4=3r3c5-3r9c4*|r79c4=3r7c6; -3r6c5,r7c58
Sorry to say, these three deletions do not solve the puzzle.

Ted

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Sat Sep 08, 2012 1:32 pm Post subject:

Code:

*--------------------------------------------------------------------*
| 7 8 4 | 9 56 56 | 1 23 23 |
| 9 3 2 | 1 7 a48 | 6 48 5 |
| 5 6 1 | 38 348 2 | 7 48 9 |
|----------------------+----------------------+----------------------|
| 3 59 7 | 6 289-5 c589 | 258 1 4 |
| 4 2 6 | 7 8-35 1 | 358 9 38 |
| 1 59 8 |b35 249-35 c3459 | 235 7 6 |
|----------------------+----------------------+----------------------|
| 28 7 5 | 4 3689 36-89 | 389 23 1 |
| 6 4 3 | 2 1 a89 | 89 5 7 |
| 28 1 9 | 358 358 7 | 4 6 238 |
*--------------------------------------------------------------------*
Sue de Coq
{489}r28c6, {53}r6c4, {34589}r46c6 => -35r456c5, -89r7c6; stte

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tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Sat Sep 08, 2012 1:58 pm Post subject:

arkietech wrote:

Code:

Play/Print this puzzle online

Classic beauty Very Happy

Ted

SudoQ

Joined: 02 Aug 2011
Posts: 127

Posted: Sat Sep 08, 2012 4:04 pm Post subject:

Maybe not as elegant as "Sue de Coq", but easier to understand!? Very Happy

Code:

|-----------|------------------|--------------|
| 7 8 4 | 9 56 56 | 1 23 23 |
| 9 3 2 | 1 7 4-8 | 6 48 5 |
| 5 6 1 |(38) 348 2 | 7 48 9 |
|-----------|------------------|--------------|
| 3 59 7 | 6 2589 (589) | 258 1 4 |
| 4 2 6 | 7 358 1 | 358 9 38 |
| 1 59 8 |(35) 23459 3459 | 235 7 6 |
|-----------|------------------|--------------|
| 28 7 5 | 4 3689 3689 | 389 23 1 |
| 6 4 3 | 2 1 (89) | 89 5 7 |
| 28 1 9 | 358 358 7 | 4 6 238 |
|-----------|------------------|--------------|

r4c6=5/8/9 => -8r2c6

/SudoQ

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Sat Sep 08, 2012 5:00 pm Post subject:

Nice

SudoQ wrote:

Maybe not as elegant as "Sue de Coq", but easier to understand!? Very Happy

Code:

r4c6=5/8/9 => -8r2c6

/SudoQ

(8=95)r48c6-(5=3)r6c4-(3=8)r3c4 => -8r2c6

if r4c6 is a 5 then r3c4 is a 8
if r4c6 is not a 5 then r48c6 form an 89 pair
Therefore r2c6 cannot be an 8

ronk

Joined: 07 May 2006
Posts: 398

Posted: Wed Sep 12, 2012 1:58 am Post subject:

tlanglet wrote:

arkietech wrote:

Code:

Classic beauty Very Happy

A beauty, but not a classic. With one ALS triply-linked to the AAALS "core", this one is beyond classic.

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