Giraffe Hunt 2
(Published on 24. October 2024, 22:08 by ralphwaldo1)
Normal Sudoku rules apply.
Anti-Giraffe: Cells (1,4) apart cannot be the same.
Kropki dots: black dots join digits that are in a 1:2 ratio; white dots join digits differing by 1.
Thermo: digits on the grey line increase from bulb to tip.
Killer Cage: digits in the black cage sum to the small number in the top-left of the cage.
Clone Cages: the blue cages contain the same pair of digits.
Thanks to gdc for setting the diagram so SudokuPad understands the anti-giraffe rule!
N.B. "Giraffe" is the name given in fairy chess problems to the (1,4)‑counterpart to the knight, as can be seen in the bonus chess problem with both knights replaced by Giraffes. (e.g. white Giraffe could play from e8 to f4).
Helpmate in 3 (Black helps White to give mate after BW BW BW)
Knights replaced by Giraffes.
2 solutions
Chess Solutions: (select to display)
1.GId2 b4 2.GIe6 Kc6 3.GIa5 b5 #
1.Ka5 b3 2.GIb2 GIa7 3.GIa6 GIe6 #
Two model mates (each square guarded or blocked exactly once) with wGI, bGI and P exchanging duties between the solutions.
Solution code: (For the sudoku) 6th row.
Comments
on 18. December 2024, 13:14 by Bankey
This was fun, once you get the hang of it. Thanks, @ ralphwaldo1:). Will now try out the first one.
on 17. November 2024, 23:18 by QuiltyAsCharged
I have an anti-giraffe rule in my home: No giraffes allowed. I've never been bitten by a giraffe, so it's surprisingly effective.
In this sudoku, the anti-giraffe rule is also surprisingly effective. Great puzzle!
on 4. November 2024, 00:53 by v8nagrom
I was struggling for a long time but there came a point from where it started to roll and the puzzle kinda solved itself. It was so surprising and satisfying. Thanks!
on 3. November 2024, 23:25 by ViKingPrime
I'm legitimately so pleased that the phrase "by giraffe logic" has entered the sudoku lexicon.
on 30. October 2024, 20:45 by slowbiex
harder than i thought but i love it - thx for setting
on 25. October 2024, 21:42 by ralphwaldo1
SudokuPad link updated with version understanding anti-giraffe.
on 24. October 2024, 23:43 by gdc
Fantastic follow-up to the original giraffe hunt. Silky smooth finish and nice presentation of "the idea".
