Nurimisaki Killer
(Published on 27. March 2023, 18:51 by Jay Dyer)
Rules
- Normal sudoku rules apply.
- Shade some cells so that no 2x2 area is fully shaded or unshaded, and the unshaded cells form a single connected area. Any dead-end unshaded cell (i.e. one which is bordered on three sides by shaded cells or the grid boundary) contains a digit equal to the number of unshaded cells visible in a straight line from that cell, including itself (shaded cells block the view).
- All clues are in shaded cells. Each connected area of shaded cells contains exactly one clue, which equals the sum of the digits in that area. Digits may not repeat within one of these areas.
Solution code: Row 2 and column 2.
Comments
on 23. November 2023, 11:18 by Snookerfan
Great puzzle with a powerfull constraint! It made me smile a few times. Thank you
on 19. November 2023, 10:32 by Dot
Love it!
on 22. June 2023, 13:29 by Christounet
The building of the killers, with the powerful rule of dead ends, was an amazing experience ! Thanks :)
on 11. May 2023, 05:37 by twobear
Amazing! Thank you!
on 6. May 2023, 13:59 by thrutch
That was an amazing journey.
on 7. April 2023, 20:06 by Agent
Great puzzle, the first digits did an insane amount of work.
on 30. March 2023, 12:03 by abed hawila
Brilliant!
on 29. March 2023, 14:29 by AdamGaffney96
My first ever 5 star solve, only took a cool 100 minutes! The logic is absolutely stunning all the way through and flows surprisingly well once you grasp the ruleset. Absolutely beautiful work.
on 29. March 2023, 11:06 by madhupt
Brilliant puzzle! I had to literally inch my way through. Got badly stuck at several points but small pieces of very intricate logic took me ahead. Thanks a lot for sharing
on 28. March 2023, 21:14 by Bootenks
Very lovely puzzle. I liked the flow along the solving path.
on 28. March 2023, 17:20 by Jay Dyer
Added rule clarification (that clues are always shaded).
on 28. March 2023, 14:48 by Piatato
I figured they had to. Very nice hybrid! :)
on 28. March 2023, 13:41 by Piatato
Must all clues be inside of a shaded area?
on 27. March 2023, 21:42 by Knickolas
Another remarkable puzzle as one would expect coming from Jay. I loved how you used the dead-end constraint! Thanks for the fun :)
