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immpy
Joined: 06 May 2017
Posts: 571
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 Posted: Tue May 09, 2017 12:52 pm Post subject: VH+ 050917 |
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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 . |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site |
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ZeroAssoluto
Joined: 05 Feb 2017
Posts: 943
Location: Rimini, Italy
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| Posted: Tue May 09, 2017 1:34 pm Post subject: |
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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 |
+--------------+----------------+------------------+
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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
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| Posted: Tue May 09, 2017 1:40 pm Post subject: |
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| 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
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| Posted: Tue May 09, 2017 1:49 pm Post subject: |
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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: 571
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| Posted: Tue May 09, 2017 3:07 pm Post subject: |
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| 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: 571
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| Posted: Thu May 11, 2017 3:57 pm Post subject: |
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| 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
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| Posted: Thu May 11, 2017 10:50 pm Post subject: |
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| 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: 571
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| Posted: Fri May 12, 2017 2:28 am Post subject: |
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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
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| Posted: Fri May 12, 2017 4:00 am Post subject: |
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| 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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