Anticamel Coloring Book
(Published on 30. December 2024, 21:26 by gdc)
This weeks setting challenge by Scojo was about anti-knight and irregular grids. I took some artistic freedom and went for anti-camel and chaos construction instead. Inspired by the puzzles by Lubaf and ralphwaldo1. Thanks to the CtC discord for testing. Hope you enjoy!
- Chaos Construction: Divide the grid into 9 regions of orthogonally connected cells. Place the digits 1-9 once each in every row, column and region.
- Anti-Camel: Digits separated by a camel move (in fairy chess) may not contain the same digit. A camel moves 3 steps forward and 1 step to the side.
- Internal X-Sums: A digit in a circle counts the number of cells it sees of its own region in its row and column combined, including itself. Region borders and elephants block vision. If given, a 2-digit number in a rectangle gives the sum of all 'seen' digits.
Example: Anti-Camel
In fairy chess, a camel in the center of the grid could move to all the red squares. It is similar to a chess knight, but makes a (3,1) leap rather than a (2,1) leap. In an anti-camel sudoku, the central digit can not repeat in any of the red squares.
Solution code: The digits in the region containing the 10-clue in reading order (9 digits)
Comments
on 3. January 2025, 01:56 by ViKingPrime
I must confess, I'm pro-camel myself... nevertheless, another brilliant puzzle! You're on a hot streak.
on 1. January 2025, 12:09 by MCMCHammer
A very nice puzzle, ending was quite tricky unless I missed an easier path.
The anticamel rule brought some really interesting logic.
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gdc: I added a hidden comment with the intended logic for the end-solve. It is certainly not easy.
on 1. January 2025, 05:52 by virus_dave
Thank you, thoroughly enjoyable, and since it's now 10 to midnight, looks like it'll be my final solve of 2024. Thanks & Happy New Year!
on 31. December 2024, 20:27 by gdc
another end-solve update - last one for this year :-)
on 31. December 2024, 17:00 by Sinuit
Perfect puzzle to be the last one I‘m solving this year. Three star chaos construction is just the best!
And I loved the fact, that „elephants block vision“ :-)
on 31. December 2024, 16:37 by Chaka
Really awesome!
on 31. December 2024, 16:09 by Snookerfan
Superb puzzle! I had a little trouble with the anticamel scanning, which turned out to be very important. Thank you
on 31. December 2024, 13:32 by marcmees
Very nice, with tricky ending. thanks
on 31. December 2024, 11:44 by zonny
Awesome puzzle that gives joy at each deduction!
on 31. December 2024, 07:48 by LehanLehan
Quality as always, thank you very much and Happy new year.
on 31. December 2024, 06:26 by gdc
update end-solve
