Alphabet Xoup: K

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Alphabet Xoup: K

Postby m_b_metcalf » Tue Feb 28, 2023 2:16 pm

Code: Select all
 . 1 . . . . 2 . .
 . 2 . . . 3 . . .
 . 4 . . 5 . . . .
 . 6 . 7 . . . . .
 . 3 8 1 . . . . .
 . 9 . . 4 . . . .
 . 5 . . . 2 . . .
 . 8 . . . . 5 . .
 . 7 . . . . . 9 .   moderate

 . 1 . . . . 2 . .
 . 2 . . . 3 . . .
 . 4 . . 5 . . . .
 . 6 . 7 . . . . .
 . 8 9 1 . . . . .
 . 3 . . 8 . . . .
 . 5 . . . 4 . . .
 . 9 . . . . 6 . .
 . 7 . . . . . 8 .   A magnificent pearl

 . 1 . . . . 2 . .
 . 2 . . . 3 . . .
 . 4 . . 5 . . . .
 . 3 . 6 . . . . .
 . 7 8 1 . . . . .
 . 9 . . 4 . . . .
 . 5 . . . 2 . . .
 . 8 . . . . 3 . .
 . 6 . . . . . 7 .   extemely hard


And, for good measure, a very hard, minimal version, with only 15 clues:
Code: Select all
 . . . . . . 2 . .
 . 3 . . . 4 . . .
 . . . . 5 . . . .
 . 4 . 6 . . . . .
 . 7 5 1 . . . . .
 . . . . 2 . . . .
 . 8 . . . 3 . . .
 . 5 . . . . 7 . .
 . . . . . . . 6 .   very hard
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m_b_metcalf
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Re: Alphabet Xoup: K

Postby Leren » Tue Feb 28, 2023 6:12 pm

Only the moderate puzzle solved without recourse to forcing chains for me. Let's see what others have to say.

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Re: Alphabet Xoup: K

Postby Leren » Tue Feb 28, 2023 7:53 pm

I added a couple of clues to Mike's pearl puzzle that makes it solvable without forcing chains but still challenging.

Code: Select all
 . 1 . . . . 2 9 .
 . 2 . . . 3 . . .
 . 4 . . 5 . . . .
 . 6 . 7 . . . . .
 . 8 9 1 . . . . .
 . 3 . . 8 . . . .
 . 5 . . . 4 . . .
 . 9 . . . . 6 . .
 1 7 . . . . . 8 .

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Re: Alphabet Xoup: K

Postby philvo » Wed Mar 01, 2023 6:19 am

Nice series of X-sudokus.
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Re: Alphabet Xoup: K

Postby Hajime » Wed Mar 01, 2023 6:56 am

Code: Select all
.1....2...2...3....4..5.....3.8......761......9..4.....5...2....8....9...6.....7.  SE=10.0
.1....2...2...3....4..5.....3.5......789......9..6.....5...2....8....3...6.....1.  SE=1.5
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Re: Alphabet Xoup: K

Postby m_b_metcalf » Wed Mar 01, 2023 7:27 am

Hajime wrote:
Code: Select all
.1....2...2...3....4..5.....3.8......761......9..4.....5...2....8....9...6.....7.  SE=10.0

Good find, well done.

Mike
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Re: Alphabet Xoup: K

Postby urhegyi » Tue Mar 07, 2023 5:51 am

And, for good measure, a very hard, minimal version, with only 15 clues:
Code: Select all
 . . . . . . 2 . .
 . 3 . . . 4 . . .
 . . . . 5 . . . .
 . 4 . 6 . . . . .
 . 7 5 1 . . . . .
 . . . . 2 . . . .
 . 8 . . . 3 . . .
 . 5 . . . . 7 . .
 . . . . . . . 6 .   very hard


Here one with only 14 clues:
Code: Select all
......5..
.1...7...
....2....
...9.....
.368.....
....5....
.9...3...
.7....2..
.......8.
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