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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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 Posted: Sun Sep 03, 2017 6:22 am Post subject: VH090317 |
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| Code: | *-----------*
|.27|9.8|.3.|
|...|.1.|.68|
|.1.|..3|...|
|---+---+---|
|..5|3..|4..|
|.6.|...|.2.|
|..2|..4|1..|
|---+---+---|
|...|5..|.8.|
|95.|.2.|...|
|.3.|8.9|65.|
*-----------*
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Ajò Dimonios
Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
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| Posted: Sun Sep 03, 2017 7:56 am Post subject: |
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Hi everyone
| Code: |
+-------------+-----------+-------------+
| 46 2 7 | 9 46 8 | 5 3 1 |
| 5 49 3 | 24 1 7 | 29 6 8 |
| 8 1 69 | 26 5 3 | 279 4 279 |
+-------------+-----------+-------------+
| 1 789 5 | 3 789 2 | 4 79 6 |
| 47 6 49 | 1 79 5 | 8 2 3 |
| 3 789 2 | 67 6789 4 | 1 79 5 |
+-------------+-----------+-------------+
| 2467 47 46 | 5 3 1 | 279 8 2479 |
| 9 5 8 | 47 2 6 | 3 1 47 |
| 247 3 1 | 8 47 9 | 6 5 247 |
+-------------+-----------+-------------+
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Play this puzzle online at the Daily Sudoku site
[(4-6)R1C1=(6)R3C3-(6)R7C3 and (4)R1C1-(4)R5C1=(4)R5C3-(4)R7C3]=>contradiction R7C3=Ø=>-4R1C1=>solution stte.
Ciao a Tutti
Paolo |
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Ajò Dimonios
Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
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| Posted: Sun Sep 03, 2017 8:37 am Post subject: |
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Hi everyone
Other solutions
[(4-7)R5C1=(7)R46C2-(7)R7C2 and (4)R5C1-(4)R5C3=(4)R7C3-(4)R7C2]=>contradiction R7C2=Ø=>-4R5C1=>solution stte.
or
or -9R2C2 in correspondence biunivoca with -4R1C1
or -4R7C2 in correspondence biunivoca with -4R1C1
or-4R7C3 in correspondence biunivoca with -4 R5C1
Ciao a Tutti
Paolo |
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ZeroAssoluto
Joined: 05 Feb 2017
Posts: 1017
Location: Rimini, Italy
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| Posted: Sun Sep 03, 2017 12:27 pm Post subject: |
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Hi everyone,
| Code: |
+-------------+-----------+-------------+
| 46 2 7 | 9 46 8 | 5 3 1 |
| 5 49 3 | 24 1 7 | 29 6 8 |
| 8 1 69 | 26 5 3 | 279 4 279 |
+-------------+-----------+-------------+
| 1 789 5 | 3 789 2 | 4 79 6 |
| 47 6 49 | 1 79 5 | 8 2 3 |
| 3 789 2 | 67 6789 4 | 1 79 5 |
+-------------+-----------+-------------+
| 2467 47 46 | 5 3 1 | 279 8 2479 |
| 9 5 8 | 47 2 6 | 3 1 47 |
| 247 3 1 | 8 47 9 | 6 5 247 |
+-------------+-----------+-------------+
|
Play this puzzle online at the Daily Sudoku site
some solutions:
W-wing 4,7 in r5c1,r7c2 connected by number 4 in r57c3 and -7 in r4c2,r6c2,r7c1,r9c1
or
W-Wing 4,6 in r1c1,r7c3 connected by number 4 in r5c13 and -6 in r3c3,r7c1
or
W-Wing 4,7 in r5c1,r9c5 connected by number 4 in r1c15 and -7 in r5c5,r9c1
or
XY-Wing 4,6,9 in r1c1,r35c3 and -4 in r5c1
or
XY-Wing 4,6,9 in r2c2,r37c3 and -4 in r7c2
Ciao Gianni |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Sep 03, 2017 6:36 pm Post subject: |
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| I used the 47 W-Wing in b48. |
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immpy
Joined: 06 May 2017
Posts: 574
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| Posted: Mon Sep 04, 2017 1:37 am Post subject: |
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Yes, I also spotted that first W Wing.
Nice puzzle. |
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