Islands Countdown (Ambiguous Kropki Sudoku/Shimaguni)
(Published on 28. September 2022, 06:10 by rockratzero)
Islands Countdown
(Hybrid Irregular Kropki Pairs Sudoku and Shimaguni Shading Puzzle)
Thanks to RockyRoer and Agent for ruleset inspiration
Rules
Irregular Sudoku Rules Apply.
Fill each row, column, and outlined region with the digits 1-9 with no repetition.
Extra Region. Additionally, the circled cells will be filled with another set of digits 1-9 with no repetition.
Shimaguni (Connected) Rules Apply.
Shade a single group of orthogonally connected cells in each region. Shaded groups may not share a bold border. The number of shaded cells in a region is given by the circled digit in that region. All shaded cells must be connected to one another, either orthogonally (within regions) or diagonally (between regions).
Killer Cages. Digits may not repeat in cages. Digits in a cage sum to the small value given in the top left of the caged area.
Kropki Pairs. A grey dot in the grid means that the two cells it connects are either both unshaded or both shaded. If both are shaded, it acts as a black dot connecting digits in a 2:1 ratio. If both are unshaded, it acts as a white dot connecting consecutive digits. All possible Kropkis under this ruleset are given. Links
F-Puzzles Link
SudokuPad/CTC Link
(Hybrid Irregular Kropki Pairs Sudoku and Shimaguni Shading Puzzle)
Thanks to RockyRoer and Agent for ruleset inspiration
Rules
Irregular Sudoku Rules Apply.
Fill each row, column, and outlined region with the digits 1-9 with no repetition.
Extra Region. Additionally, the circled cells will be filled with another set of digits 1-9 with no repetition.
Shimaguni (Connected) Rules Apply.
Shade a single group of orthogonally connected cells in each region. Shaded groups may not share a bold border. The number of shaded cells in a region is given by the circled digit in that region. All shaded cells must be connected to one another, either orthogonally (within regions) or diagonally (between regions).
Killer Cages. Digits may not repeat in cages. Digits in a cage sum to the small value given in the top left of the caged area.
Kropki Pairs. A grey dot in the grid means that the two cells it connects are either both unshaded or both shaded. If both are shaded, it acts as a black dot connecting digits in a 2:1 ratio. If both are unshaded, it acts as a white dot connecting consecutive digits. All possible Kropkis under this ruleset are given. Links
F-Puzzles Link
SudokuPad/CTC Link
Solution code: Digits in column 9, top-to-bottom, followed by shading of the the ascending diagonal (r9c1 to r1c9). Use "S" for shaded, "U" for unshaded. (9 digits, 9 letters, no spaces or punctuation.)
Last changed on on 2. October 2022, 05:19
Solved by thoughtbyte, mnasti2, h5663454, dhv, 85392, cdwg2000, Fw1728, ern3301, Raumplaner, Jesper, fjam, randall, lars, Emckee2006, Selenotropism, Felis_Timon, Jaych, godoffours, nottabird, Jodelbanane, rich_27, cybers
Comments
on 22. November 2022, 00:42 by Emckee2006
This was a very enjoyable hybrid :) I almost got stuck at one point midway through coloring, but luckily I was able to get unstuck :)
on 29. September 2022, 17:17 by Jesper
Fun and approachable hybrid, thanks!
on 28. September 2022, 16:24 by ern3301
Great logical flow ! Cheers to the setter
on 28. September 2022, 06:46 by thoughtbyte
Great combination with a smooth, approachable flow. Thanks.
