Logic Masters Deutschland e.V.

Count me out ! [Deconstruction]

(Eingestellt am 14. April 2023, 01:18 Uhr von Christounet)

Following my previous 11x11 deconstruction puzzle counting cells in regions, I thought I would try and make one counting cells outside regions !

This serie also includes puzzles involving dots, german whispers, position sums and thermos.


Rules :

- Normal sudoku deconstruction apply : Fill the grid with nine non-overlapping 3x3 square regions, such that each region contains the digits 1-9 once each and no digit repeats in any row or column. Cells outside regions do not contain digits.

- Arrow clues : if a cell with one or more arrows is in a region, its digit is equal to the total number of empty cells (without digits) that appear in the grid in the indicated directions combined.

The puzzle :

Penpa

Sudokupad


Difficulty should be a bit higher than the previous one, around 3-4/5, depending if you are familiar with deconstruction and irregular sudoku or not. If you have trouble visualizing line of sights of certain clues at some point, I suggest using the line tool to draw them and facilitate the count. Note : the rule of leftovers can be used but is not necessary here. Do as you please !

Enjoy ! And consider leaving a comment if you appreciate the puzzle !

You can check out my other puzzles here if you liked this one.

Lösungscode: Row 10 of the grid, all digits, X for empty cells.

Zuletzt geändert am 4. April 2024, 09:11 Uhr

Gelöst von Steven R, h5663454, Paquet Voleur, karlmortenlunna, GabePuzzles, AvonD, Leaub, Jaych, jkuo7, francklg88, Koalagator2, tuturitu, heliosfant, DVFrank, madhupt, alwaysbcoding, bansalsaab, misko, ... Tacosian, Bellsita, cat, dunder, Paletron, Sewerin, zakkai, SterlingWest, Las4one, Unknown, Piatato, Snookerfan, isajo4002, Chad, han233ing, JDP678, ophelias, steeto, DreamBoyJJ, MusiKaiser
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Kommentare

am 18. Juli 2024, 19:41 Uhr von isajo4002
That was brutal

Zuletzt geändert am 15. Juli 2024, 14:24 Uhr

am 15. Juli 2024, 14:11 Uhr von Snookerfan
Superb puzzle! Thankfully I found it after I missed it before. Thank you
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@Snookerfan : Glad you found it too :)

Zuletzt geändert am 10. Juli 2024, 13:17 Uhr

am 10. Juli 2024, 13:17 Uhr von Piatato
Awesome concept, absolutely brutal (clear 5/5) yet fair puzzle :)

Zuletzt geändert am 3. Mai 2023, 18:13 Uhr

am 3. Mai 2023, 17:55 Uhr von Silverstep
As stated by others, this puzzle is easier than it looks. I'd put it at low 3/5 for difficulty. There are no advanced techniques, and each step requires very short lookahead.

I did it in subfifty ;)
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@Silverstep : As you can read in the description, I also estimated it around 3-4/5, but it got rated higher by some solvers. Don't know what subfifty means. I hope you had a good time solving it nonetheless.

Zuletzt geändert am 30. April 2023, 20:39 Uhr

am 30. April 2023, 20:00 Uhr von Agent
Very nice and original deconstruction logic!
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@Agent : Thanks ! Glad you liked the puzzle :)

Zuletzt geändert am 22. April 2023, 22:18 Uhr

am 22. April 2023, 10:25 Uhr von BloodbuzzCorio
Christounet great puzzle! I did rate it 5 stars for difficulty - certainly all of the logic was fair and very rewarding, but I had to work hard for quite a few of the steps to reveal themselves!
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@BloodbuzzCorio : Thanks, I'm glad you got through despite the difficulties you encountered. Diagonal scanning did make it quite challenging at some steps, which is why I advised to use the line tool to help with lines of sight. The other one I set counthing cells inside regions was definitely easier regarding exploration.

Zuletzt geändert am 17. April 2023, 15:58 Uhr

am 17. April 2023, 15:47 Uhr von peacherwu2
What a beauty! Very original!
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@peacherwu2 : Thanks ! Glad you found this original :)

Zuletzt geändert am 16. April 2023, 11:21 Uhr

am 15. April 2023, 14:00 Uhr von heliosfant
Thank you so much for this great puzzle. Your deconstruction ones are the best of the best.
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@heliosfant : Thanks, I feel really rewarded by that kind comment.
You should try these 2 if you havent't already : 000DG3 and 000D3V
Also, check out the last one from tallcat !

Zuletzt geändert am 16. April 2023, 11:12 Uhr

am 14. April 2023, 16:11 Uhr von karlmortenlunna
Very nice and tricky puzzle.
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@karlmortenlunna : Thanks ! Glad you liked it.

Zuletzt geändert am 14. April 2023, 15:09 Uhr

am 14. April 2023, 14:41 Uhr von Paquet Voleur
Might be me or the puzzle, but I found this one to be a lot trickier than its Count Me In counterpart. I kept overlooking possibilities, reducing options in known cells based on values in posible cells, forgetting scenarios & ruling out cells that could have been included, and other such entertaining errors that made this puzzle quite a journey. I put five stars for difficulty, but I realize I might be the problem. Very satisfying once the proper path has been found (without using the rule of leftovers, once again: I should probably pay more attention). Thanks for setting and sharing!
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@ Paquet Voleur : It is true that this one is a lot trickier than the previous one ! I purposefully decided to rely a lot less on the usual "fixed" cells of the 11x11 grid for the key deductions, which makes it less obvious where you have to look, but there's definitely a logical path, and I'm glad you made it through with satisfaction !

Schwierigkeit:5
Bewertung:99 %
Gelöst:51 mal
Beobachtet:21 mal
ID:000DKQ

Lösung abgeben

Lösungscode:

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