Cave of Killers
(Published on 22. April 2024, 23:41 by Jay Dyer)
It's far too long since I last posted a puzzle here. I got a little overloaded recently with matters of health and life in general, but am getting things back on track and can hopefully start making puzzles regularly again. This one's been waiting in my backlog for a few months, so it's about time it got published.
Rules
- Normal sudoku rules apply.
- Shade some cells so that the unshaded cells form a single orthogonally connected area, and each connected shaded region touches the grid boundary.
- A circle is always unshaded, and the digit in the circle equals the number of unshaded cells visible in a straight line from that cell, including the cell itself. Shaded cells obstruct the view.
- All corner clues are shaded, and each shaded region contains a corner clue which equals the sum of the digits in that region. Digits may not repeat in a shaded region, and the digit in the clued cell equals the size of the region.
Solve in Sudokupad
Solution code: Row 7
Comments
on 1. May 2024, 17:45 by Pedro Levi
Very nice and clean logic! 3/5 stars for me.
on 25. April 2024, 10:58 by TNGuy
It's very rare to see a puzzle having such an amazing ending. Very well constructed, enjoyable from start to finish!
on 24. April 2024, 15:00 by Franjo
A question: may different shaded regions touch each other?
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No, shaded regions can't touch each other.
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Thank you very much for answering! And now, after solving this jewel of a puzzle, I just realize how silly my question was … Sorry - and again thank you so much for setting and sharing this masterpiece.
on 24. April 2024, 10:49 by Piatato
Very nice and smooth, thanks!
on 23. April 2024, 17:01 by henrypijames
Welcome back, Jay!
on 23. April 2024, 14:39 by MagnusJosefsson
Superb puzzle, very smooth and enjoyable!
on 23. April 2024, 10:23 by Snookerfan
Brilliant! Thank you
on 23. April 2024, 01:19 by SudokuHero
Very nice construction.
on 23. April 2024, 00:30 by MicroStudy
awesome puzzle, glad to have you back, legend
