## Collection December 17, 2012

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### Collection December 17, 2012

Code: Select all
` *-----------* |.13|...|..4| |...|61.|..2| |.2.|...|8..| |---+---+---| |4..|.5.|..1| |..5|.4.|23.| |6..|...|5.9| |---+---+---| |..1|.28|...| |.9.|4..|...| |...|9..|.7.| *-----------*`

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dan

ArkieTech

Posts: 2927
Joined: 29 May 2006
Location: NW Arkansas USA

### Re: Collection December 17, 2012

Code: Select all
`*--------------------------------------------------------------------------------*| 579     1       3        | 578     789     2        |d69      56-9    4        || 789-5  a45      478      | 6       1       7-5      | 3      e59      2        || 59      2       6        | 35      39      4        | 8       1       7        ||--------------------------+--------------------------+--------------------------|| 4       3       9        | 2       5       6        | 7       8       1        || 1       78      5        | 78      4       9        | 2       3       6        || 6       78      2        | 1       378     37       | 5       4       9        ||--------------------------+--------------------------+--------------------------|| 357    b46      1        | 357     2       8        |c49-6    69      35       || 3578    9       78       | 4       367     1357     | 16      2       358      || 2       56-4    48       | 9       36      135      | 146     7       358      |*--------------------------------------------------------------------------------*`

Purple Cow linked XY Wing Loop: (5=4) r2c2 - r7c2 = (4-9) r7c7 = r1c7 - (9=5) r2c8 - r2c2 Loop => r1c8 <9>, r2c16 <5>, r7c7 <6>, r9c2 <4> ; stte.

Leren
Last edited by Leren on Mon Dec 17, 2012 11:40 am, edited 1 time in total.
Leren

Posts: 3307
Joined: 03 June 2012

### Re: Collection December 17, 2012

Same eliminations, but slightly different continuous nice loop:

(4=5)r2c2 - (5=9)r2c8 - (9=6)r7c8 - (6=4)r7c2 - r2c2 - loop

pjb
pjb
2014 Supporter

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Location: Sydney, Australia

### Re: Collection December 17, 2012

pjb wrote:Same eliminations, but slightly different continuous nice loop:

(4=5)r2c2 - (5=9)r2c8 - (9=6)r7c8 - (6=4)r7c2 - r2c2 - loop

pjb
dan

ArkieTech

Posts: 2927
Joined: 29 May 2006
Location: NW Arkansas USA

### Re: Collection December 17, 2012

Code: Select all
`+--------------+--------------+-------------+| 579  1   3   | 578 789 2    | 69  569 4   || 5789 45  478 | 6   1   57   | 3   59  2   || 59   2   6   | 35  39  4    | 8   1   7   |+--------------+--------------+-------------+| 4    3   9   | 2   5   6    | 7   8   1   || 1    78  5   | 78  4   9    | 2   3   6   || 6    78  2   | 1   378 37   | 5   4   9   |+--------------+--------------+-------------+| 357  46  1   | 357 2   8    | 469 69  35  || 3578 9   78  | 4   367 1357 | 16  2   358 || 2    456 48  | 9   36  135  | 146 7   358 |+--------------+--------------+-------------+`

Play this puzzle online at the Daily Sudoku site

XY-Loop.

(5=9)r2c8-(9=6)r7c8-(6=4)r7c2-(4=5)r2c2=>r2c6<>5
Marty R.

Posts: 1508
Joined: 23 October 2012
Location: Rochester, New York, USA

### Re: Collection December 17, 2012

Just using two digits:

(5)r7c4 = (5)r13c4 - (5=7)r2c6 - (7)r1c45 = (7)r1c1 - (7)r7c1 = (7)r7c4 - Loop => r28c1 <> 7, r7c4 <> 3

For anyone who followed the Multi-fish / Multi-Sector Locked Set discussions, Marty R's solution is a baby one:

(5)r2,(6)r7,(4)c2,(9)c8 MSLS:r27c28 => r2c16 <> 5, r6c7 <> 6, r9c2 <> 4, r1c8 <> 9

(The 4 cells hold 4 different digits, each one confined to a single row or column.)
David P Bird
2010 Supporter

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Joined: 16 September 2008
Location: Middle England

### Re: Collection December 17, 2012

Found a little time to work on this puzzle..........

7r8c3=7r2c3-(7=5=9)r2c68-(9=6=4)r7c82-(4=5)r2c2-(59=7)r31c1 Conflict => r2c3<>7
tlanglet
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Joined: 29 May 2010