Mining For Diamonds
(Eingestellt am 11. Juli 2025, 23:34 Uhr von LJ Jamie)
Chat, here's another puzzle with the pink diamonds. The rules are simple:
(A) Normal Sudoku rules apply
(B1) For every 2x2 quadrant covered by a pink diamond, the four digits (which may repeat if otherwise permitted) must sum to 20 or more.
(B2) The Negative Constraint is that quadrants without pink diamonds must sum to less than 20.
(C) Adjacent digits on green German Whisper lines must differ by at least 5.
Here is the SudokuPad link, and have fun!
Lösungscode: Row 1 left-to-right
Kommentare
am 16. Juli 2025, 18:49 Uhr von nbdurie
Super Nice Puzzle!
am 16. Juli 2025, 14:04 Uhr von Snuggles
I ended up with two independent combinations which were difficult to disambiguate. Neither affected the solution code.
am 15. Juli 2025, 03:38 Uhr von NotSoMagnifique
What a gem indeed!
am 12. Juli 2025, 05:31 Uhr von VitP
i can confirm that the solution checker matches my (correct) solution, both at puzzle end, and on this page.
the previous puzzle of this type felt quite hard, but this one was quite easy, mortly because i now know the procedure:
1) put a colour splash in a fixed corner of every quad that matches the constraint.
2) now systematically scan ONLY those quads that are not YET satisfied.
[!CREATOR COMMENT!] I am happy you enjoyed it! Interestingly, I didn't use colors to solve it, but it's cool whenever people have different approaches.
am 12. Juli 2025, 00:50 Uhr von mvondras
Ditto. Really like the puzzle though.
am 12. Juli 2025, 00:19 Uhr von sfield
I solved it. It said my solution was wrong. I can't find any mistakes after checking carefully manually. And my solution code works. Maybe check the online solution for a typo?
