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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Tue Aug 22, 2017 8:00 am Post subject: VH082217 |
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Code: | *-----------*
|7.6|2..|1..|
|..8|...|.6.|
|421|..6|..3|
|---+---+---|
|...|63.|...|
|..4|...|9..|
|...|.47|...|
|---+---+---|
|1..|7..|684|
|.6.|...|2..|
|..2|..5|7.9|
*-----------*
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Ajò Dimonios
Joined: 01 May 2017 Posts: 339 Location: Sassari Italy
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Posted: Tue Aug 22, 2017 11:49 am Post subject: |
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Hi everyone
Code: |
+---------+--------------+------------+
| 7 3 6 | 2 58 4 | 1 9 58 |
| 5 9 8 | 13 7 13 | 4 6 2 |
| 4 2 1 | 589 589 6 | 58 7 3 |
+---------+--------------+------------+
| 2 18 59 | 6 3 189 | 58 4 7 |
| 3 7 4 | 58 1258 128 | 9 15 6 |
| 6 18 59 | 589 4 7 | 3 2 158 |
+---------+--------------+------------+
| 1 5 3 | 7 29 29 | 6 8 4 |
| 9 6 7 | 4 18 138 | 2 135 15 |
| 8 4 2 | 13 6 5 | 7 13 9 |
+---------+--------------+------------+
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Play this puzzle online at the Daily Sudoku site
-8R6C4 and -8R4C6 (locked candidates).
Two solutions after basics.
[(5)R1C9-(5=1)R8C9 and (5)R1C9-(5=8)R1C5-(8=1)R8C5]=>contradiction two singles 1 in line 8=>-5R1C9=>stte.
or
[(5)R3C5-(5)R1C5=(5)R1C9-(5)R3C7=(5)R4C7-(5)R4C3=(5)R6C3-(5)R6C4 and (5-9)R3C5=(9)R3C4-(9)R6C4]=>contradiction R6C4=Ø=>-5R3C5=>stte.
Ciao a Tutti
Paolo |
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ZeroAssoluto
Joined: 05 Feb 2017 Posts: 933 Location: Rimini, Italy
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Posted: Tue Aug 22, 2017 12:54 pm Post subject: |
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Hi everyone,
Code: |
+---------+--------------+-----------+
| 7 3 6 | 2 58 4 | 1 9 58 |
| 5 9 8 | 13 7 13 | 4 6 2 |
| 4 2 1 | 589 589 6 | 58 7 3 |
+---------+--------------+-----------+
| 2 18 59 | 6 3 19 | 58 4 7 |
| 3 7 4 | 58 1258 128 | 9 15 6 |
| 6 18 59 | 59 4 7 | 3 2 18 |
+---------+--------------+-----------+
| 1 5 3 | 7 29 29 | 6 8 4 |
| 9 6 7 | 4 18 138 | 2 135 15 |
| 8 4 2 | 13 6 5 | 7 13 9 |
+---------+--------------+-----------+
|
Play this puzzle online at the Daily Sudoku site
some solutions
W-Wing 1,8 in r6c9, r8c5 connected by number 8 in r1c59 and -1 in r8c9
or
XY-Wing 1,5,8 in r1c9, r8c59 and -8 in r1c5
or
XY-Wing 1,5,8 in r1c5, r8c59 and -5 in r1c9
or
Skyscraper with number 1 in r68c9, r58c5 and -1 in r5c8
Ciao Gianni |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Tue Aug 22, 2017 1:22 pm Post subject: |
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Code: |
+---------+--------------+-----------+
| 7 3 6 | 2 58 4 | 1 9 58 |
| 5 9 8 | 13 7 13 | 4 6 2 |
| 4 2 1 | 589 589 6 | 58 7 3 |
+---------+--------------+-----------+
| 2 18 59 | 6 3 19 | 58 4 7 |
| 3 7 4 | 58 1258 128 | 9 15 6 |
| 6 18 59 | 59 4 7 | 3 2 18 |
+---------+--------------+-----------+
| 1 5 3 | 7 29 29 | 6 8 4 |
| 9 6 7 | 4 18 138 | 2 135 15 |
| 8 4 2 | 13 6 5 | 7 13 9 |
+---------+--------------+-----------+
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Play this puzzle online at the Daily Sudoku site
Fun one
Quote: | M-Wing (58) (8=5)r5c4-r5c8=(5-8)r4c7=r3c7=> -8r3c4
-or- Kite (1) with transport 1r5c5=r8c5-r9c4=r9c8-r8c9=r6c9=> -1r5c8 |
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