Rising Tide
(Published on 15. November 2023, 09:00 by Nordy)
Surf's up! Difficulty estimated at 2.5 stars.
Rules:
Normal Sudoku: Place the digits 1 to 9 in every row, column, and 3x3 box.
German Whispers: Along green lines, adjacent digits must have a difference of 5 or greater.
Coral Variant: Some cells are coral and others are water. The high digits and 5 {5,6,7,8,9} are all part of the coral. All coral cells are orthogonally connected. The low digits {1,2,3,4} are all part of the water. There may be multiple bodies of water, and all bodies of water are orthogonally connected to the edge of the grid. No 2x2 area is entirely coral or entirely water.
Solve online:
Solution code: Row 1
Comments
on 18. April 2024, 15:07 by Piatato
Fun and smooth one!
on 18. November 2023, 19:00 by bloogercloge
Really great puzzle! It was my first time doing a coral variant, so it did take me some extra time to spot the next deductions, but generally really smooth!
on 17. November 2023, 02:39 by mathpesto
So much lovely shading logic!
on 15. November 2023, 23:58 by yttrio
Very fun and smooth puzzle, with some nice interactions between the whisper lines and coral constraint!
on 15. November 2023, 20:04 by NRB
Lovely. Loved how you had to bounce around the grid and between colour and sudoku.
on 15. November 2023, 13:55 by Calvinball
Great puzzle! It's cool to see a variant like this have such a smooth and approachable solve.
on 15. November 2023, 09:31 by Schwupel
Great puzzle with a very fitting title. Didnt expect such smooth sailing on the rising ocean!
