September 21, 2015

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September 21, 2015

Postby ArkieTech » Sun Sep 20, 2015 11:09 pm

Code: Select all
 *-----------*
 |...|...|..3|
 |.17|..4|8..|
 |...|5..|...|
 |---+---+---|
 |...|.4.|9..|
 |1.2|.6.|..7|
 |.89|...|..1|
 |---+---+---|
 |.9.|1.3|.68|
 |...|..9|.3.|
 |..4|...|.9.|
 *-----------*


Play/Print this puzzle online
dan
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Re: September 21, 2015

Postby Leren » Sun Sep 20, 2015 11:59 pm

Code: Select all
*--------------------------------------------------------------*
| 4    e25    68     | 278   9     278    |f256   1     3      |
|d25    1     7      | 6     3     4      | 8     25    9      |
| 9     3     68     | 5     1     28     | 26    7     4      |
|--------------------+--------------------+--------------------|
| 57    57    3      | 28    4     1      | 9     28    6      |
| 1     4     2      | 9     6     58     | 3     58    7      |
| 6     8     9      | 3    a27    257    |g5-2   4     1      |
|--------------------+--------------------+--------------------|
|c27    9     5      | 1    b27    3      | 4     6     8      |
| 8     6     1      | 4     5     9      | 7     3     2      |
| 3     27    4      | 27    8     6      | 1     9     5      |
*--------------------------------------------------------------*

(2) r6c5 = r7c5 - r7c1 = (2-5) r2c1 = r1c2 - r1c7 = (5) r6c7 => - 2 r6c7; stte

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Re: September 21, 2015

Postby Marty R. » Mon Sep 21, 2015 12:33 am

Code: Select all
+----------+------------+----------+
| 4  25 68 | 278 9  278 | 256 1  3 |
| 25 1  7  | 6   3  4   | 8   25 9 |
| 9  3  68 | 5   1  28  | 26  7  4 |
+----------+------------+----------+
| 57 57 3  | 28  4  1   | 9   28 6 |
| 1  4  2  | 9   6  58  | 3   58 7 |
| 6  8  9  | 3   27 257 | 25  4  1 |
+----------+------------+----------+
| 27 9  5  | 1   27 3   | 4   6  8 |
| 8  6  1  | 4   5  9   | 7   3  2 |
| 3  27 4  | 27  8  6   | 1   9  5 |
+----------+------------+----------+

Play this puzzle online at the Daily Sudoku site

BUG+4: 2r1c4=2r1c6=2r6c6=2r1c7

2r1c4=2r1c6=2r6c6=> 8r3c6
2r1c7=>5r6c7
Thus, 5r6c7=8r3c6-(8=5)r5c6=> -5r5c8,r6c6
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Re: September 21, 2015

Postby bat999 » Mon Sep 21, 2015 12:40 am

Code: Select all
.--------------.-----------------.-------------.
|  4    25  68 |  28-7  9   f278 | 256   1   3 |
| c25   1   7  |  6     3    4   | 8    d25  9 |
|  9    3   68 |  5     1   f28  | 26    7   4 |
:--------------+-----------------+-------------:
|  57   57  3  |  28    4    1   | 9     28  6 |
|  1    4   2  |  9     6   f58  | 3    e58  7 |
|  6    8   9  |  3     27   257 | 25    4   1 |
:--------------+-----------------+-------------:
| c27   9   5  |  1     27   3   | 4     6   8 |
|  8    6   1  |  4     5    9   | 7     3   2 |
|  3   b27  4  | a27    8    6   | 1     9   5 |
'--------------'-----------------'-------------'
(7)r9c4 = r9c2 - (7=5)r27c1 - r2c8 = r5c8 - (5=7)r135c6 => -7 r1c4; stte
8-)
8-)
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Re: September 21, 2015

Postby pjb » Mon Sep 21, 2015 7:54 am

Code: Select all
 4       25      68     | 278    9      278    | 256    1      3     
d25      1       7      | 6      3      4      | 8     c25     9     
 9       3       68     | 5      1      28     | 26     7      4     
------------------------+----------------------+---------------------
 57      57      3      |a28     4      1      | 9     b28     6     
 1       4       2      | 9      6      58     | 3      58     7     
 6       8       9      | 3      7-2    257    | 25     4      1     
------------------------+----------------------+---------------------
e27      9       5      | 1     f27     3      | 4      6      8     
 8       6       1      | 4      5      9      | 7      3      2     
 3       27      4      | 7-2    8      6      | 1      9      5     

(2)r4c4 = r4c8 - r2c8 = r2c1 - r7c1 = r7c5 => -2 r6c5, r9c4; stte
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Re: September 21, 2015

Postby Ngisa » Mon Sep 21, 2015 8:02 am

Code: Select all
+----------+------------+----------+
| 4  a25 68 | 278 9  278 | b256 1  3 |
| 2-5 1  7  | 6   3  4   | 8   25 9 |
| 9  3  68 | 5   1  28  | 26  27 4 |
+----------+------------+----------+
|g57 57 3  | 28  4  1   | 9   28 6 |
| 1  4  2  | 9   6  58  | 3   58 7 |
| 6  8  9  | 3   d27 257 | c25  4  1 |
+----------+------------+----------+
| f27 9  5  | 1   e27 3   | 4   6  8 |
| 8  6  1  | 4   5  9   | 7   3  2 |
| 3  27 4  | 27  8  6   | 1   9  5 |
+----------+------------+----------+
(5)r1c2=r1c7-(5=2)r6c7-(2=7)r6c5-r7c5=r7c1-(7=5) => -5r2c1; stte

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Re: September 21, 2015

Postby SteveG48 » Mon Sep 21, 2015 9:57 pm

Code: Select all
 *--------------------------------------------------*
 | 4    25   68   |*278  9   *278  |*256  1    3    |
 | 25   1    7    | 6    3    4    | 8    25   9    |
 | 9    3    68   | 5    1    28   | 26   7    4    |
 *----------------+----------------+----------------|
 | 57   57   3    | 8-2  4    1    | 9    28   6    |
 | 1    4    2    | 9    6    58   | 3    58   7    |
 | 6    8    9    | 3    27  *257  | 25   4    1    |
 *----------------+----------------+----------------|
 | 27   9    5    | 1    27   3    | 4    6    8    |
 | 8    6    1    | 4    5    9    | 7    3    2    |
 | 3    27   4    | 27   8    6    | 1    9    5    |
 *--------------------------------------------------*

BUG+4 => 2r1c4|8r1c6|2r1c7|2r6c6

2r1c4                - 2r4c4

8r1c6 - r5c6 =     (8-2)r4c4

2r1c7 - r6c7 = r6c56 - 2r4c4

2r6c6                - 2r4c4 => -2 r4c4 ; stte

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Re: September 21, 2015

Postby SteveG48 » Mon Sep 21, 2015 10:11 pm

Marty R. wrote:
Code: Select all
+----------+------------+----------+
| 4  25 68 | 278 9  278 | 256 1  3 |
| 25 1  7  | 6   3  4   | 8   25 9 |
| 9  3  68 | 5   1  28  | 26  7  4 |
+----------+------------+----------+
| 57 57 3  | 28  4  1   | 9   28 6 |
| 1  4  2  | 9   6  58  | 3   58 7 |
| 6  8  9  | 3   27 257 | 25  4  1 |
+----------+------------+----------+
| 27 9  5  | 1   27 3   | 4   6  8 |
| 8  6  1  | 4   5  9   | 7   3  2 |
| 3  27 4  | 27  8  6   | 1   9  5 |
+----------+------------+----------+

Play this puzzle online at the Daily Sudoku site

BUG+4: 2r1c4=2r1c6=2r6c6=2r1c7

2r1c4=2r1c6=2r6c6=> 8r3c6
2r1c7=>5r6c7
Thus, 5r6c7=8r3c6-(8=5)r5c6=> -5r5c8,r6c6


Marty, I don't believe that excluding 2 from all of the indicated cells yields the BUG pattern. You would have only one 2 in column 6 and three 8's.
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Re: September 21, 2015

Postby Marty R. » Mon Sep 21, 2015 11:15 pm

Marty, I don't believe that excluding 2 from all of the indicated cells yields the BUG pattern. You would have only one 2 in column 6 and three 8's.


OK, thanks. I was a little nervous about my solution and was half-expecting a comment. Would three 2s and an 8 in r1c6 do the trick? (I don't know why I didn't try the 8 originally).
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Re: September 21, 2015

Postby SteveG48 » Tue Sep 22, 2015 12:15 am

Marty R. wrote:
Marty, I don't believe that excluding 2 from all of the indicated cells yields the BUG pattern. You would have only one 2 in column 6 and three 8's.


OK, thanks. I was a little nervous about my solution and was half-expecting a comment. Would three 2s and an 8 in r1c6 do the trick? (I don't know why I didn't try the 8 originally).


Yes, that's what I posted for my solution. At least I hope it's correct. I have a history of messing up BUG solutions. :)
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