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very hard VII

 
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AjÚ Dimonios



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

PostPosted: Mon Aug 28, 2017 8:18 am    Post subject: very hard VII Reply with quote

Hi everyone


Code:

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

Play this puzzle online at the Daily Sudoku site


Ciao a Tutti

Paolo
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JC Van Hay



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

PostPosted: Mon Aug 28, 2017 9:33 am    Post subject: Reply with quote

Code:
+-------------------+--------------------+------------------+
| 78(9)   2   5789  | 1589  3     1459   | 6      78   145  |
| 378     1   3578  | 58    2568  56(24) | 5(4)   278  9    |
| 6       4   58(9) | 7     1258  15(29) | 15     28   3    |
+-------------------+--------------------+------------------+
| 278     9   6     | 4     57    3      | 258    1    258  |
| 4       5   1     | 2     9     8      | 3      6    7    |
| 278     3   78    | 6     157   15     | 9      4    258  |
+-------------------+--------------------+------------------+
| 3-1(9)  8   349   | 139   (12)  7      | (124)  5    6    |
| 5       67  49    | 189   1268  169(2) | 12478  3    1248 |
| 13      67  2     | 1358  4     156    | 178    9    18   |
+-------------------+--------------------+------------------+
Kraken 2C6 :
1r7c5 2r7c5
1r7c7 2r7c5 4r7c7
            4r2c7 4r2c6
      2r8c6       2r2c6 2r3c6
                        9r3c6 9r3c3
                              9r3c1 9r7c1 -> 1r7c57==9r7c1 => -1r7c1; 9 singles
Code:
+--------------+-------------------+-------------------+
| 789  2  5789 | 89(15)  3     49  | 6     78   5-4(1) |
| 378  1  3578 | 8(5)    2568  246 | (45)  278  9      |
| 6    4  589  | 7       1258  29  | 15    28   3      |
+--------------+-------------------+-------------------+
| 27   9  6    | 4       57    3   | 8     1    25     |
| 4    5  1    | 2       9     8   | 3     6    7      |
| 278  3  78   | 6       57    1   | 9     4    25     |
+--------------+-------------------+-------------------+
| 39   8  349  | 19      12    7   | 124   5    6      |
| 5    7  49   | 189     1268  269 | 124   3    124    |
| 1    6  2    | 3       4     5   | 7     9    8      |
+--------------+-------------------+-------------------+
Wing :
1r1c9 1r1c4
      5r1c4 5r2c4
            5r2c7 4r2c7 -> 1r1c9==4r2c7 => -4r1c9; stte
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AjÚ Dimonios



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

PostPosted: Mon Aug 28, 2017 3:50 pm    Post subject: Reply with quote

Hi everyone

Code:

+-------------+----------------+----------------+
| 789 2  5789 | 1589 3    1459 | 6     78  1458 |
| 378 1  3578 | 58   2568 2456 | 2458  278 9    |
| 6   4  589  | 7    1258 1259 | 1258  28  3    |
+-------------+----------------+----------------+
| 278 9  6    | 4    57   3    | 258   1   258  |
| 4   5  1    | 2    9    8    | 3     6   7    |
| 278 3  78   | 6    157  15   | 9     4   258  |
+-------------+----------------+----------------+
| 139 8  349  | 139  12   7    | 124   5   6    |
| 5   67 49   | 189  1268 1269 | 12478 3   1248 |
| 13  67 2    | 1358 4    156  | 178   9   18   |
+-------------+----------------+----------------+

Play this puzzle online at the Daily Sudoku site

R7C7=4=>singles to the error=>-4R7C7=>solution stte.

Ciao a Tutti
Paolo
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