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Pattern Game 9.20 jpf 5.2

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arkietech

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

Posted: Thu May 31, 2012 6:19 am Post subject: Pattern Game 9.20 jpf 5.2

Code:

*-----------*
|...|...|...|
|.1.|234|.5.|
|..6|...|7..|
|---+---+---|
|.5.|8.3|.6.|
|.2.|...|.7.|
|.3.|5.9|.2.|
|---+---+---|
|..4|...|3..|
|.7.|956|.4.|
|...|...|...|
*-----------*

Play/Print online

tlanglet

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

Posted: Thu May 31, 2012 12:51 pm Post subject:

Code after basics:

Code:

*--------------------------------------------------------------------*
| 235 489 25 | 6 89 7 | 12489 138 12489 |
| 7 1 89 | 2 3 4 | 89 5 6 |
| 23 489 6 | 1 89 5 | 7 38 2489 |
|----------------------+----------------------+----------------------|
| 4 5 7 | 8 2 3 | 19 6 19 |
| 89 2 89 | 4 6 1 | 5 7 3 |
| 6 3 1 | 5 7 9 | 48 2 48 |
|----------------------+----------------------+----------------------|
| 289 6 4 | 7 1 28 | 3 89 5 |
| 18 7 3 | 9 5 6 | 128 4 128 |
| 12589 89 25 | 3 4 28 | 6 189 7 |
*--------------------------------------------------------------------*

This puzzle has so many bivalue pairs that I did not bother to look for some patterns. I was hopeful about a productive AUR but no luck. An axy-wings did the deed........

axy-wing(89-1)r9c2+r8c1|r9c8=(8)r9c8-(8=3)r3c8-(3=2)r3c1-r79c1=(2-5)r9c3=r9c1; r9c1<>1

Ted

SudoQ

Joined: 02 Aug 2011
Posts: 127

Posted: Thu May 31, 2012 1:24 pm Post subject:

tlanglet wrote:

This puzzle has so many bivalue pairs..

Why not a bi-location solution?

Code:

r1c1=3 -> r9c1=5
r1c8=3 -> r9c8=1 => r9c1<>1

/SudoQ

arkietech

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

Posted: Thu May 31, 2012 1:28 pm Post subject:

tlanglet wrote:

axy-wing(89-1)r9c2+r8c1|r9c8=(8)r9c8-(8=3)r3c8-(3=2)r3c1-r79c1=(2-5)r9c3=r9c1; r9c1<>1

I am still working on your solution. This one gives the same result.

Code:

*--------------------------------------------------------------------*
|c235 489 25 | 6 89 7 | 12489 b138 12489 |
| 7 1 89 | 2 3 4 | 89 5 6 |
| 23 489 6 | 1 89 5 | 7 38 2489 |
|----------------------+----------------------+----------------------|
| 4 5 7 | 8 2 3 | 19 6 19 |
| 89 2 89 | 4 6 1 | 5 7 3 |
| 6 3 1 | 5 7 9 | 48 2 48 |
|----------------------+----------------------+----------------------|
| 289 6 4 | 7 1 28 | 3 89 5 |
| 18 7 3 | 9 5 6 | 128 4 128 |
|d12589 89 25 | 3 4 28 | 6 a89(1) 7 |
*--------------------------------------------------------------------*
d-loop
(1)r9c8=(1-3)r1c8=(3-5)r1c1=(5-1)r9c1=(1)r9c8 => r9c8=1; lclste

Play/Print online

tlanglet

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

Posted: Thu May 31, 2012 2:05 pm Post subject:

SudoQ wrote:

Why not a bi-location solution?
/SudoQ

SudoQ,

I am not aware of the "bi-location" technique and I was not able to find it on Sudopedia either. Please expand on this method.

Ted

aran

Joined: 19 Apr 2010
Posts: 70

Posted: Thu May 31, 2012 3:50 pm Post subject:

ssts

Code:

A fishing approach is suggested by the presence of an on-the-board jellyfish : 8c2568r1379 =><8>r1c79, r3c9, r79c1.

Code:

*-----------------------------------------------------------*
| 235 489 25 | 6 89 7 | 1249 138 1249 |
| 7 1 89 | 2 3 4 | 89 5 6 |
| 23 489 6 | 1 89 5 | 7 38 249 |
|-------------------+-------------------+-------------------|
| 4 5 7 | 8 2 3 | 19 6 19 |
| 89 2 89 | 4 6 1 | 5 7 3 |
| 6 3 1 | 5 7 9 | 48 2 48 |
|-------------------+-------------------+-------------------|
| 29 6 4 | 7 1 28 | 3 89 5 |
| 18 7 3 | 9 5 6 | 128 4 128 |
| 1259 89 25 | 3 4 28 | 6 189 7 |
*-----------------------------------------------------------*

(1=8)r8c1-XW8r68c79=8r2c7-(8=3)r3c8-(3=289)r357c1 =>r8c1=1

tlanglet

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

Posted: Thu May 31, 2012 4:31 pm Post subject:

aran wrote:

ssts

Code:

A fishing approach is suggested by the presence of an on-the-board jellyfish : 8c2568r1379 =><8>r1c79, r3c9, r79c1.

Beautiful

I have never actually seen a posted puzzle with a jellyfish before. In fact, I never looked for a jellyfish in this puzzle but I did analyze the finned swordfish(8)r239c258 with fin (8)r7c8.The fin can be transported:
(8)r7c8-r7c6=r9c6; r9c1<>8 and
(8)r7c8-r8c79=r8c1-r5c1=r5c3-r2c3=r2c7; r1c79, r3c9<>7

This provides the identical deletions as the jellyfish.

Ted

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Thu May 31, 2012 5:27 pm Post subject:

I used the 89 W-Wing in boxes 79, which exposed an XY-Wing on 238 pivoted in r3c1. With pincer transport, r8c1<>8.

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