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VH Christmas Day 2021

 
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Sat Dec 25, 2021 12:26 pm    Post subject: VH Christmas Day 2021 Reply with quote

Code:
+--------------+---------------+--------------+
| 6   7   9    | 58  148 45    | 12  125 3    |
| 18  5   38   | 9   2   36    | 7   16  4    |
| 12  23  4    | 56  13  7     | 69  8   59   |
+--------------+---------------+--------------+
| 57  9   57   | 2   6   1     | 3   4   8    |
| 4   8   1    | 35  9   35    | 26  7   26   |
| 3   6   2    | 4   7   8     | 19  15  59   |
+--------------+---------------+--------------+
| 58  1   358  | 7   38  9     | 4   26  26   |
| 9   24  6    | 1   5   24    | 8   3   7    |
| 278 234 378  | 368 348 2346  | 5   9   1    |
+--------------+---------------+--------------+


After basics.

Quote:
XY wing on <126> r15c7 and r6c8 so r3c7 < > 6
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Sat Dec 25, 2021 12:51 pm    Post subject: Reply with quote

An interesting view would be to look at the ANP (Almost Naked Pair) <125> formed by r1c78.

If the ANP is true then r2c8 < > 1

If the ANP is false then r1c8 = 5 so r6c8 = 1 and r2c8 < > 1

Whether the ANP is true or not, r2c8 < > 1 stte.
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TomC



Joined: 30 Oct 2020
Posts: 349
Location: Wales

PostPosted: Sat Dec 25, 2021 3:28 pm    Post subject: Reply with quote

Another way is XYZ <125> gives r2c8 <> 1
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TomC



Joined: 30 Oct 2020
Posts: 349
Location: Wales

PostPosted: Sat Dec 25, 2021 3:31 pm    Post subject: Reply with quote

Or r7c8 <> 6 as short XY chain gives r5c7 = 6 and then no room at the inn for baby <6> in stable 3
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Sat Dec 25, 2021 5:31 pm    Post subject: Reply with quote

Myrrh pincers for 6 at r5c7 and r7c9 and via a frankincense XY chain,
r5c9 < > 6.
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TomC



Joined: 30 Oct 2020
Posts: 349
Location: Wales

PostPosted: Sat Dec 25, 2021 5:54 pm    Post subject: Reply with quote

I thought they looked more like prancers for 6
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 868
Location: Rimini, Italy

PostPosted: Sat Dec 25, 2021 6:07 pm    Post subject: Reply with quote

Hi everyone and happy holidays,

other options:

XY-Wing 3,5,6 in r25c6,r3c4 and -5 in r1c6,r5c4
XY-Wing 1,6,9 in r2c8,r36c7 and -1 in r1c7,r6c8
XY-Wing 1,2,6 in r1c7,r27c8 and -2 in r1c8
XY-Wing 3,5,6 in r2c6,r35c4 and -3 in r5c6
Skyscraper with number 3 in r3c25,r7c35 and -3 in r2c3,r9c2
Skyscraper with number 3 in r2c36,r7c35 and -3 in r3c5,r9c6

Ciao Gianni
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Sat Dec 25, 2021 6:52 pm    Post subject: Reply with quote

TomC wrote:
I thought they looked more like prancers for 6


That’s a red nosed ripper ! 😂
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Sat Dec 25, 2021 7:00 pm    Post subject: Reply with quote

Buon Natale Gianni!
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 868
Location: Rimini, Italy

PostPosted: Sat Dec 25, 2021 8:17 pm    Post subject: Reply with quote

Hi

Thanks, best wishes to you too.
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