December 7, 2014

Post puzzles for others to solve here.

December 7, 2014

Postby ArkieTech » Sun Dec 07, 2014 12:10 am

Code: Select all
 *-----------*
 |..2|8..|9..|
 |4..|1..|..8|
 |.9.|..7|...|
 |---+---+---|
 |6..|7..|.45|
 |.3.|.5.|.8.|
 |75.|..8|..6|
 |---+---+---|
 |...|4..|.7.|
 |5..|..3|..1|
 |..1|..2|6..|
 *-----------*


Play/Print this puzzle online
dan
User avatar
ArkieTech
 
Posts: 3355
Joined: 29 May 2006
Location: NW Arkansas USA

Re: December 7, 2014

Postby Leren » Sun Dec 07, 2014 12:37 am

Code: Select all
*--------------------------------------------------------------------------------*
|b13      167     2        | 8       346     456      | 9       356     37       |
| 4       67     a3567     | 1     Ag236-9d  569      |f2357ac f2356ac  8        |
| 8       9       356      | 2356    236     7        | 4       1      e23b      |
|--------------------------+--------------------------+--------------------------|
| 6       12      8        | 7       1239    19       | 123     4       5        |
|c12      3       49       | 26      5       146      | 127     8      d279      |
| 7       5       49       | 23      1234    8        | 123     239     6        |
|--------------------------+--------------------------+--------------------------|
| 239     268     36       | 4       168     156      | 358     7       39       |
| 5       4       67       | 69      678     3        | 28      29      1        |
| 39      78      1        | 59      78      2        | 6       359     4        |
*--------------------------------------------------------------------------------*

Kraken Row 2 Digit 3:

3 r2c3 - (3=1) r1c1 - (1=2) r5c1 - r5c9 = r3c9 - r2c78 = r2c5 - 9 r2c5;

3 r2c5                                                        - 9 r2c5;

3 r2c78 - (3=2)r3c9 - r2c78 = r2c5                            - 9 r2c5; => - 9 r2c5; stte

Leren
Leren
 
Posts: 5019
Joined: 03 June 2012

Re: December 7, 2014

Postby SteveG48 » Sun Dec 07, 2014 12:56 am

Code: Select all
 *-----------------------------------------------------------*
 | 13    167   2     | 8     346   456   | 9     356   37    |
 | 4     67    3567  | 1    c2369 b569   |d2357 d2356  8     |
 | 8     9     356   | 2356  236   7     | 4     1    e23    |
 *-------------------+-------------------+-------------------|
 | 6     2-1   8     | 7     1239 a19    | 123   4     5     |
 |g12    3     49    | 26    5     46-1  | 127   8    f279   |
 | 7     5     49    | 23    1234  8     | 123   239   6     |
 *-------------------+-------------------+-------------------|
 | 239   268   36    | 4     168   156   | 358   7     39    |
 | 5     4     67    | 69    678   3     | 28    29    1     |
 | 39    78    1     | 59    78    2     | 6     359   4     |
 *-----------------------------------------------------------*


(1=9)r4c6 - r2c6 = (9-2)r2c5 = r2c78 - r3c9 = r5c9 - (2=1)r5c1 = -1 r4c2,r5c6 ; stte
Steve
User avatar
SteveG48
2019 Supporter
 
Posts: 4202
Joined: 08 November 2013
Location: Orlando, Florida

Re: December 7, 2014

Postby bat999 » Sun Dec 07, 2014 4:06 am

Hi
Solved it again without any brainwork.
8-)

This time, as well as pairs/triples/pointing/claiming I used Empty Rectangle method (several times).
Image
8-)
bat999
2017 Supporter
 
Posts: 677
Joined: 15 September 2014
Location: UK

Re: December 7, 2014

Postby Leren » Sun Dec 07, 2014 10:28 am

Having added a number of valid solutions checker to my solver in response to another thread I note with interest that today's puzzle is still uniquely solvable with the removal (one at a time)
of the following 4 clues: 7 r3c6, 5 r4c9, 5 r6c2 and 2 r9c6. I wonder how often this sort of thing occurs in the daily puzzles.

PS Further investigation reveals that the puzzle is still uniquely solvable with the removal of the following pairs of clues : (7 r3c6 and 5r4c9, 7 r3c6 and 5 r6c2, 2 r9c6 and 5 r4c9).

PPS in case you were wondering removing all 4 clues allows for 422 solutions :D

Leren
Leren
 
Posts: 5019
Joined: 03 June 2012

Re: December 7, 2014

Postby ArkieTech » Sun Dec 07, 2014 12:19 pm

Code: Select all
 *-----------------------------------------------------------*
 |a13    167   2     | 8     346   456   | 9     356   37    |
 | 4     67    3567  | 1     2369  569   | 2357  2356  8     |
 | 8     9     356   | 2356  236   7     | 4     1     23    |
 |-------------------+-------------------+-------------------|
 | 6     12    8     | 7     1239  19    | 123   4     5     |
 |ad12   3     49    | 6-2   5     146   |d127   8    d279   |
 | 7     5     49    | 23    1234  8     | 123   239   6     |
 |-------------------+-------------------+-------------------|
 | 239   268   36    | 4     168   156   | 358   7    c39    |
 | 5     4     67    | 69    678   3     | 28    29    1     |
 |a39    78    1     |b59    78    2     | 6    b359   4     |
 *-----------------------------------------------------------*
(2=9)r159c1-(9=3)r9c48-(3=9)r7c9-(9=172)r5c179 => -2r2c4; ste
dan
User avatar
ArkieTech
 
Posts: 3355
Joined: 29 May 2006
Location: NW Arkansas USA

Re: December 7, 2014

Postby SteveG48 » Sun Dec 07, 2014 7:46 pm

bat999 wrote:Hi
Solved it again without any brainwork.
8-)

This time, as well as pairs/triples/pointing/claiming I used Empty Rectangle method (several times).


Yes. You'll find that some of the daily puzzles are fairly easy to solve using relatively simple non-basic moves like Empty Rectangle. The trick is solving them with a single advanced move after basics.
Steve
User avatar
SteveG48
2019 Supporter
 
Posts: 4202
Joined: 08 November 2013
Location: Orlando, Florida

Re: December 7, 2014

Postby gurth » Mon Dec 08, 2014 5:32 am

Image
gurth
 
Posts: 358
Joined: 11 February 2006
Location: Cape Town, South Africa

Re: December 7, 2014

Postby bat999 » Mon Dec 08, 2014 9:51 am

SteveG48 wrote:... The trick is solving them with a single advanced move after basics.

OK, thanks for that information.
:)
8-)
bat999
2017 Supporter
 
Posts: 677
Joined: 15 September 2014
Location: UK


Return to Puzzles