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VH+ 050917

 
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Tue May 09, 2017 12:52 pm    Post subject: VH+ 050917 Reply with quote

Enjoy all.....

Code:

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

Play this puzzle online at the Daily Sudoku site
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 868
Location: Rimini, Italy

PostPosted: Tue May 09, 2017 1:34 pm    Post subject: Reply with quote

Hi immpy,

Code:

+--------------+----------------+------------------+
| 46  2    348 | 36   3469  7   | 1    4589  45    |
| 146 78   9   | 16   5     14  | 27   278   3     |
| 5   147  347 | 2    1349  8   | 79   6     47    |
+--------------+----------------+------------------+
| 7   468  1   | 5    28    9   | 3    24    246   |
| 49  4689 48  | 137  12378 123 | 267  12457 24567 |
| 3   5    2   | 4    17    6   | 8    17    9     |
+--------------+----------------+------------------+
| 249 3    47  | 8    2467  5   | 2679 279   1     |
| 8   179  5   | 1367 12367 123 | 4    279   267   |
| 124 147  6   | 9    1247  124 | 5    3     8     |
+--------------+----------------+------------------+


I followed this path:

2-String Kite with number 7 in r6c58, r58c4 and -7 in r8c8;
Empty Rectangle with number 7 in sector 9 connected with number 7 in r37c3 and -7 in r3c9.

Ciao Gianni.
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JC Van Hay



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

PostPosted: Tue May 09, 2017 1:40 pm    Post subject: Reply with quote

Code:
+-------------------+-------------------+----------------------+
| 46   2      348   | 36    34569   7   | 1       4589   45    |
| 146  14678  9     | 16    1456    14  | 2(7)    24578  3     |
| 5    147    34(7) | 2     1349    8   | 9(7)    6      4-7   |
+-------------------+-------------------+----------------------+
| 7    468    1     | 5     28      9   | 3       24     246   |
| 469  4689   48    | 137   12378   123 | 26(7)   12457  24567 |
| 3    5      2     | 4     1(7)    6   | 8       1(7)   9     |
+-------------------+-------------------+----------------------+
| 249  3      4(7)  | 8     2467    5   | 269(7)  279    1     |
| 8    179    5     | 1367  12367   123 | 4       279    267   |
| 124  14(7)  6     | 9     124(7)  124 | 5       3      8     |
+-------------------+-------------------+----------------------+
Jellyfish{7C27R69} -> -{7r3c9}; stte
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Ajò Dimonios



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

PostPosted: Tue May 09, 2017 1:49 pm    Post subject: Reply with quote

Hi everyone

R9C9=8,R6C1=3,R6C2=5,R9C7=5,R8C3=5

Delete 7 in R3C9, since if it were true would impose no 7 in column 7 (contradiction) . Finally solution with basic strategy.

Ciao Paolo
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Tue May 09, 2017 3:07 pm    Post subject: Reply with quote

Kudos to all. You have all amazed me (again). I simply cannot SEE all of your great solving techniques. I will have to digest them some more. I used a finned XY-Wing (146) r12c14 in which the wing proved false, leaving the fin (6) as true in r2c1. Solved with basics from there.
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Thu May 11, 2017 3:57 pm    Post subject: Reply with quote

Gianni, I finally grasped your path. Brilliant. Kudos to you.
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Thu May 11, 2017 10:50 pm    Post subject: Reply with quote

Quote:
Empty Rectangle with number 7 in sector 9 connected with number 7 in r37c3 and -7 in r3c9.


Gianni,

I don't see an ER in box 9. Perhaps we have different understandings of that technique
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Fri May 12, 2017 2:28 am    Post subject: Reply with quote

Hello Marty, maybe it's not a textbook example of an ER, but once the 7 is removed in r8c8 (by the 2-string kite), the 7 can also be removed in r3c9 because it sees both 7s in c3. One directly (same row), and the other through Box 9. Is that not the ER technique at work?

immpy
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Fri May 12, 2017 4:00 am    Post subject: Reply with quote

immpy wrote:
Hello Marty, maybe it's not a textbook example of an ER, but once the 7 is removed in r8c8 (by the 2-string kite), the 7 can also be removed in r3c9 because it sees both 7s in c3. One directly (same row), and the other through Box 9. Is that not the ER technique at work?

immpy


OK.

I was looking at it as a one-stepper rather than as the the 2nd move of a two-stepper.
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