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May 14 VH

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ZeroAssoluto

Joined: 05 Feb 2017
Posts: 936
Location: Rimini, Italy

Posted: Tue May 14, 2024 9:11 am Post subject: May 14 VH

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Hi everyone,

Code:

+---------------+--------+--------------+
| 2 78 9 | 3 4 17 | 18 6 5 |
| 367 3467 5 | 2 8 17 | 134 9 137 |
| 1 3478 34 | 6 5 9 | 348 378 2 |
+---------------+--------+--------------+
| 3567 9 2 | 8 1 56 | 35 37 4 |
| 4 35 13 | 7 9 2 | 1358 138 6 |
| 8 567 16 | 4 3 56 | 9 2 17 |
+---------------+--------+--------------+
| 35 2 8 | 1 7 4 | 6 35 9 |
| 356 3456 346 | 9 2 8 | 7 135 13 |
| 9 1 7 | 5 6 3 | 2 4 8 |
+---------------+--------+--------------+

Play this puzzle online at the Daily Sudoku site

Quote:

.
Skyscraper with number 7 in r2c1,r3c8 SL in r4c18 and -7 in r2c9,r3c2
or
Skyscraper with number 7 in r3c8,r6c9 SL in r36c2 and -7 in r2c9,r4c8
or
Skyscraper with number 7 in r3c2,r4c1 SL in r34c8 and -7 in r2c1,r6c2
or
Skyscraper with number 7 in r4c1,r6c9 SL in r2c19 and -7 in r4c8,r6c2
or
Simple Colors With number 7 (r2c1,r2c9,r3c2,r4c8,r6c2) / (r3c8,r4c1,r6c9) and -7 in r2c19,r36c2,r4c8
or
Finned X-Wing with number 7 r26c29 fr13c2 and -7 in r2c1

Ciao Gianni

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TomC

Joined: 30 Oct 2020
Posts: 358
Location: Wales

Posted: Tue May 14, 2024 10:09 am Post subject:

Thanks Gianni But doesn't a XY wing solve this in one move? No fancy stuff! I know draw/play says its not easy after this XY wing but it is!

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TomC

Joined: 30 Oct 2020
Posts: 358
Location: Wales

Posted: Tue May 14, 2024 10:23 am Post subject:

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For something a bit more fancy remove <1> from r5c8 to solve

Quote:

If r5c8=1, r5c3=3, r3c3=4, r8c3=6

Leads to a <35> UR in r78c17

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ZeroAssoluto

Joined: 05 Feb 2017
Posts: 936
Location: Rimini, Italy

Posted: Tue May 14, 2024 3:13 pm Post subject:

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Hi TomC

the xy-wing then required a naked pair and I preferred to focus only on the unique moves.

TomC wrote:

Thanks Gianni

But doesn't a XY wing solve this in one move? No fancy stuff!

I know draw/play says its not easy after this XY wing but it is!

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