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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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 Posted: Sun Mar 15, 2020 10:42 pm Post subject: Mar 16 VH |
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| Code: |
+----------------------+-------------------+------------------------+
| 1 467 3467 | 8 5 9 | 367 367 2 |
| 2 5 9 | 37 4 36 | 13678 13678 38 |
| 378 678 3678 | 237 1 236 | 59 59 4 |
+----------------------+-------------------+------------------------+
| 9 2 c78 | 1 6 358 | 3578 4 38 |
| 6 478 5 | 34 9 38 | 2 378 1 |
|b48 3 1 | 45 2 7 | 589 589 6 |
+----------------------+-------------------+------------------------+
|a47 1 4-7 | 25 8 25 | 36 36 9 |
| 38 68 368 | 9 7 1 | 4 2 5 |
| 5 9 2 | 6 3 4 | 18 18 7 |
+----------------------+-------------------+------------------------+
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XY-Wing: (7=4)r7c1 - (4=8)r6c1 - (8=7)r4c3 => - 7r7c3; stte |
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ZeroAssoluto
Joined: 05 Feb 2017
Posts: 943
Location: Rimini, Italy
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| Posted: Mon Mar 16, 2020 9:18 am Post subject: |
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Hi everyone,
| Code: |
+--------------+-----------+----------------+
| 1 467 3467 | 8 5 9 | 367 367 2 |
| 2 5 9 | 37 4 36 | 13678 13678 38 |
| 378 678 3678 | 237 1 236 | 59 59 4 |
+--------------+-----------+----------------+
| 9 2 78 | 1 6 358 | 3578 4 38 |
| 6 478 5 | 34 9 38 | 2 378 1 |
| 48 3 1 | 45 2 7 | 589 59 6 |
+--------------+-----------+----------------+
| 47 1 47 | 25 8 25 | 36 36 9 |
| 38 68 368 | 9 7 1 | 4 2 5 |
| 5 9 2 | 6 3 4 | 18 18 7 |
+--------------+-----------+----------------+
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Play this puzzle online at the Daily Sudoku site
possible also
XY-Wing 4,7,8 in r6c1,r47c3 and -4 in r7c1
or
UR 5,9 in r36c78 and r6c7=8
Ciao Gianni |
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williamholiday
Joined: 01 Apr 2011
Posts: 28
Location: Connecticut USA
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| Posted: Mon Mar 16, 2020 10:36 am Post subject: |
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Also xyz wing 358 pr4c6, r4c3-8
health and happiness to all! |
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immpy
Joined: 06 May 2017
Posts: 571
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| Posted: Mon Mar 16, 2020 1:06 pm Post subject: |
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Another possibility with the power and elegance of a Sue de Coq. Certainly not needed (required) or necessary, but present and identifiable.
Sue de Coq: r46c7 - {35789} (r3c7-{59}, r4c9-{38}) => r5c8<>3,8 (=7!)
cheers...imp
...liking the UR (59) which closes this puzzle well also.... |
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Earl
Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
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| Posted: Mon Mar 16, 2020 1:53 pm Post subject: Mar 16 VH |
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Or do it the hard way:
Type II UR36 R1,7
R1C7 or C8 must be a 7, so R2C4 = 7
Early Earl |
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