Mystery Puzzle No 29

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Mystery Puzzle No 29

Postby Leren » Sat May 15, 2021 6:16 am

Code: Select all
*-----------*
|.2.|9..|.8.|
|9..|6.8|...|
|..4|.2.|...|
|---+---+---|
|...|1..|...|
|4..|.8.|.9.|
|...|...|7..|
|---+---+---|
|6..|.9.|.2.|
|..3|...|..5|
|2..|.6.|34.|
*-----------*
.2.9...8.9..6.8.....4.2.......1.....4...8..9.......7..6...9..2...3.....52...6.34.
Leren
 
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Re: Mystery Puzzle No 29

Postby pjb » Sat May 15, 2021 1:44 pm

Code: Select all
 1357    2       1567   | 9     T1357-4 1357-4 | 1456   8      13467 
 9      B1357   B157    | 6      13457  8      | 1245   1357   12347 
 13578   135678  4      | 357    2      1357   | 159-6 T1357-6 1379-6 
------------------------+----------------------+---------------------
 3578    356789  256789 | 1      3457   2345679| 24568  356    23468 
 4       13567   12567  | 2357   8      23567  | 1256   9      1236   
 1358    135689  125689 | 2345   345    234569 | 7      1356   123468
------------------------+----------------------+---------------------
 6       14578   1578   | 34578  9      13457  | 18     2      178   
 178     14789   3      | 2478   147    1247   | 1689   167    5     
 2       15789   15789  | 578    6      157    | 3      4      1789   

JE2 pattern of 1357, with Base cells at r2c2, r2c3, and Target cells at r1c5 and r3c8
Non-base digits in target cells: -4 r1c5; -6 r3c8
Mirror check: Eliminations -4 r1c6; ; -6 r3c789 => btte

Phil
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Re: Mystery Puzzle No 29

Postby RSW » Sat May 15, 2021 10:39 pm

A different JE
Code: Select all
 +---------------------+---------------------+--------------------+
 |t1357  2      1567   | 9     13457 13457   | 1456  8     13467  |
 | 9     1357   157    | 6     13457 8       | 1245 t1357  12347  |
 | 13578 135678 4      |b357   2    b1357    | 1569  13567 13679  |
 +---------------------+---------------------+--------------------+
 | 3578  356789 256789 | 1     3457  2345679 | 24568 356   23468  |
 | 4     13567  12567  | 2357  8     23567   | 1256  9     1236   |
 | 1358  135689 125689 | 2345  345   234569  | 7     1356  123468 |
 +---------------------+---------------------+--------------------+
 | 6     14578  1578   | 34578 9     13457   | 18    2     178    |
 | 178   14789  3      | 2478  147   1247    | 1689  167   5      |
 | 2     15789  15789  | 578   6     157     | 3     4     1789   |
 +---------------------+---------------------+--------------------+

JE: (1357)r3c46, r1c1 r2c8
Rule 6: Base candidates that don't appear in a mirror node can be eliminated from the corresponding target cell => -3r2c8.
Rule 7: If one cell of a mirror node has only non-base candidates, then all non-base candidates can be removed from the other cell of the mirror node => -6r1c3.
Rule 9: Mirror node 1 has locked non-base digit 2. All other non-base digits can be eliminated from the mirror node => -2r2c79.
btte
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Re: Mystery Puzzle No 29

Postby Cenoman » Sun May 16, 2021 6:44 pm

Code: Select all
 +----------------------------+----------------------------+---------------------------+
 | t1357    2        1567     |  9      T13457   13457     |  46-15   8       46-137   |
 |  9      B1357    B157      |  6       4-1357  8         |  1245   t1357    12347    |
 |  8-1357  68-1357  4        | b357     2      b1357      |  1569   T13567   13679    |
 +----------------------------+----------------------------+---------------------------+
 |  3578    356789   256789   |  1       3457    2345679   |  24568   356     23468    |
 |  4       13567    12567    |  2357    8       23567     |  1256    9       1236     |
 |  1358    135689   125689   |  2345    345     234569    |  7       1356    123468   |
 +----------------------------+----------------------------+---------------------------+
 |  6       14578    1578     |  34578   9       13457     |  18      2       178      |
 |  178     14789    3        |  2478    147     1247      |  1689    167     5        |
 |  2       15789    15789    |  578     6       157       |  3       4       1789     |
 +----------------------------+----------------------------+---------------------------+

What Phil and RSW have demonstrated eventually, is that the puzzle has a double JE pattern
JE4: (1357) r2c23, r1c5, r3c8; r3c46, r1c1, r2c8
Eliminations in cells seeing all four base cells, and all four target cells, are enough to solve the puzzle:
=> -1357 r3c12, r2c5, -15 r1c7, -137 r1c9; lclste
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