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ZeroAssoluto
Joined: 05 Feb 2017 Posts: 941 Location: Rimini, Italy
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Posted: Wed Jun 19, 2024 2:15 pm Post subject: Jun 19 VH |
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Hi everyone,
Code: |
+-----------+----------+----------+
| 1 5 3 | 7 6 9 | 4 2 8 |
| 49 8 7 | 45 3 2 | 6 19 159 |
| 2 49 6 | 45 8 1 | 3 7 59 |
+-----------+----------+----------+
| 7 69 89 | 2 1 68 | 5 3 4 |
| 46 246 28 | 9 5 3 | 7 18 16 |
| 5 3 1 | 68 7 4 | 2 89 69 |
+-----------+----------+----------+
| 3 7 45 | 68 9 568 | 1 46 2 |
| 69 269 29 | 1 4 7 | 8 5 3 |
| 8 1 45 | 3 2 56 | 9 46 7 |
+-----------+----------+----------+
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Play this puzzle online at the Daily Sudoku site
Quote: |
XY-Wing 4,6,9 in r25c1,r4c2 and r3c2<>9
or
XY-Wing 4,6,9 in r34c2,r5c1 and r2c1,r5c2<>4
or
W-Wing 6,9 in r4c2,r8c1 SL with 9 in r48c3 and r5c1,r8c2<>6
or
W-Wing 6,9 in r4c2,r8c1 SL with 9 in r2c1,r3c2 and r5c1,r8c2<>6
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Ciao Gianni |
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TomC
Joined: 30 Oct 2020 Posts: 358 Location: Wales
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Posted: Thu Jun 20, 2024 8:48 am Post subject: |
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Look for a deadly pattern to solve this one
Quote: |
There is a 45-56-46 triple in rows 7 and 9
If r7c6 = <56> then the puzzle is invalid as it would have two solutions
So r7c6 = <8> to solve
Alternatively, you could say that r4c6<>8 or r7c4<>8 as this would trigger the deadly pattern
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