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VH+080117

 
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Tue Aug 01, 2017 4:59 pm    Post subject: VH+080117 Reply with quote

This one was interesting....enjoy.

Code:

+-------+-------+-------+
| 4 6 . | . . . | . . . |
| . . 9 | 1 . 3 | 6 . . |
| . . 5 | . . 6 | . 4 . |
+-------+-------+-------+
| . . 3 | 6 . . | . 1 . |
| . 7 . | . 2 . | . 8 . |
| . 5 . | . . 7 | 9 . . |
+-------+-------+-------+
| . 4 . | 5 . . | 8 . . |
| . . 6 | 8 . 9 | 1 . . |
| . . . | . . . | . 3 5 |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

PostPosted: Tue Aug 01, 2017 7:01 pm    Post subject: Reply with quote

Code:
+---------------------+---------------------+------------------+
| 4     6        128  | 279    5789   258   | 3     279   1289 |
| 7     28       9    | 1      4      3     | 6     5     28   |
| 1238  28-3(1)  5    | 279    789    6     | 27    4     1289 |
+---------------------+---------------------+------------------+
| 289   28(9)    3    | 6      58(9)  458   | 45    1     7    |
| 69    7        14   | (39)   2      145   | 45    8     36   |
| 168   5        148  | (34)   18     7     | 9     26    236  |
+---------------------+---------------------+------------------+
| 123   4        127  | 5      137    12    | 8     69    69   |
| 5     (23)     6    | 8      37     9     | 1     7(2)  4    |
| 1289  28(19)   1278 | 27(4)  6      (124) | 7(2)  3     5    |
+---------------------+---------------------+------------------+
3r8c2 2r8c2
      2r8c8 2r9c7
            2r9c6 1r9c6 4r9c6
                        4r9c4 4r6c4
                              3r6c4 3r5c4
                                    9r5c4 9r4c5
                  9r9c2                   9r4c2
                  1r9c2                         1r3c2-> [3r8c2==1r3c2] => -3r3c2; stte
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Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy

PostPosted: Wed Aug 02, 2017 1:31 pm    Post subject: Reply with quote

Hi everyone

Code:

+-----------------+--------------+------------------+
| 4     6    1278 | 279 5789 258 | 3    2579 123789 |
| 7     28   9    | 1   4    3   | 6    5    278    |
| 12378 1238 5    | 279 789  6   | 27   4    123789 |
+-----------------+--------------+------------------+
| 289   289  3    | 6   4589 458 | 2457 1    7      |
| 169   7    14   | 349 2    145 | 345  8    346    |
| 1268  5    1248 | 34  138  7   | 9    26   236    |
+-----------------+--------------+------------------+
| 12379 4    127  | 5   137  12  | 8    2679 269    |
| 5     23   6    | 8   37   9   | 1    27   4      |
| 12789 1289 1278 | 247 6    124 | 27   3    5      |
+-----------------+--------------+------------------+

Play this puzzle online at the Daily Sudoku site

My solution with one step after basics
[(7)R3C7-(7=2)R9C7-(2)R9C4C6=(2)R7C6-(2)R7C3;
(7)R3C7-(7)R9C7=(7)R8C8-(7=3)R8C5-(3)R8C2=(3-1)R3C2=(1)R9C2-(1=7)R7C3;
(7)R3C7-(7)R9C7=(7)R8C8-(7=3)R8C5-(3)R7C5;
(7)R3C7-(7)R9C7=(7-2)R8C8=(2-3)R8C2=(3-1)R3C2=(1)R9C2-(1)R9C6=(247)R9C467-(2=1)R7C6-(1=7)R7C5;]=>contradiction two 7 in line 7 (R7C3, R7C5)=>-7R3C7=> solution stte.

Ciao a Tutti
Paolo
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

PostPosted: Wed Aug 02, 2017 3:12 pm    Post subject: Reply with quote

Hi Paolo,

"...=(247)R9C467-(2=1)R7C6-(1=7)R7C5 ..." ???

JC
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Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy

PostPosted: Wed Aug 02, 2017 8:11 pm    Post subject: Reply with quote

Hi everyone
Sorry I made a mistake in the last chain.

You can replace the last two chains with

(7)R3C7-(7)R1C8=(7)R8C8-(7=3)R8C5-(3=2)R8C2-(2)R234C2=(2)R4C1-(2)R3C1=(2)R1C3-(2)R1C48=(9)R1C8-(9)R1C4=(7)R1C4-(7) R9C4=(7)R7C5;

that together with the first two chains

(7)R3C7-(7=2)R9C7-(2)R9C4C6=(2)R7C6-(2)R7C3;
(7)R3C7-(7)R9C7=(7)R8C8-(7=3)R8C5-(3)R8C2=(3-1)R3C2=(1)R9C2-(1=7)R7C3; =>-7R3C7=> solution stte.


Ciao a Tutti
Paolo
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