This one just has tough strategies

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Re: This one just has tough strategies

Postby Leren » Sat Mar 09, 2019 10:46 am

Solves with basics. Leren
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Re: This one just has tough strategies

Postby Mathimagics » Sat Mar 09, 2019 12:47 pm

Hi Andrew,

This is your 5th puzzle in this series, each one in a new thread (topic) … soon we'll be drowning in them ! 8-)

Please use "Post Reply", not "New Topic" for each puzzle you want to talk about … you can then post as many puzzles as you want (or think are worth a look!)
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Re: This one just has tough strategies

Postby International_DBA » Tue Mar 12, 2019 9:17 am

Sorry I didn't understand how the forum worked. Here is a tough puzzle. Do the members here prefer the more difficult puzzles?
https://andrews-sudoku.blogspot.com/201 ... tough.html
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Re: This one just has tough strategies

Postby Leren » Tue Mar 12, 2019 9:59 am

Code: Select all
*--------------------------------------*
| 6 4 8 | 9 d12d   3    | 5  c12c  7   |
| 9 7 5 | 4  126   6-12 | 3   8    12  |
| 1 2 3 | 5  78    78   | 46  9    46  |
|-------+---------------+--------------|
| 7 6 9 | 3  48-2  258  | 1   245  258 |
| 2 3 1 | 7  468   568  | 9   456  568 |
| 5 8 4 | 1  9     26a  | 67  267b 3   |
|-------+---------------+--------------|
| 8 1 2 | 6  57    9    | 47  3    45  |
| 4 5 6 | 8  3    a17   | 2  b17   9   |
| 3 9 7 | 2  5-1   4    | 8   156  156 |
*--------------------------------------*

Cute solution : Overlapping Skyscrapers on digits 1 & 2 => - 12 r2c6, - 2 r4c5, - 1 r9c5 ; stte

Alternatively solves with just the Skyscraper on 1 followed by basics and BUG+1.

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Re: This one just has tough strategies

Postby International_DBA » Tue Mar 12, 2019 12:17 pm

Well done.
Some of my earlier puzzles use a BUG but I hadn't considered it for this one.
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Re: This one just has tough strategies

Postby International_DBA » Tue Mar 12, 2019 12:27 pm

I have just given some thought to a reply I received earlier.
I would be quite happy if a moderator could delete all my topics.
Then I could start a new one called "Andrew's Puzzles" and post all my puzzles there rather than in separate topics.
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