Covert Confinement
(Published on 21. January 2022, 07:01 by SSG)
Nurikabe: Shade some cells in the grid such that all shaded cells form a single connected region and no 2x2 square is fully shaded. Each unshaded region must contain exactly one clue cell.
Build-your-own X-Killer: Each unshaded region is an X-killer cage. Digits within the cage may not repeat and must sum to the total given in the corner of the clue cell. Additionally, the digit placed in the clue cell must equal the number of cells in the cage.
Odd: Cells with gray circles must contain odd digits.
f-puzzles: https://f-puzzles.com/?id=ycqauw7h
CTC: https://tinyurl.com/2p8dtxyv
Solution code: Row 4 + Column 6 (18 digits)
Comments
on 8. December 2022, 02:54 by KNT
A wonderful puzzle for my 200th 5 star on this site. Thanks for this, SSG!
on 17. April 2022, 18:22 by kolot
Wonderful puzzle! I loved it.
on 30. March 2022, 17:28 by twobear
Fascinating puzzle!! Thank you!
on 1. March 2022, 22:10 by glum_hippo
Marvelous interactions!
on 22. January 2022, 21:43 by henrypijames
Challenging from start to finish, loved every step of it.
on 21. January 2022, 07:04 by SSG
Fixed CTC hyperlink
