Logic Masters Deutschland e.V.

Shade the False Killers

(Published on 12. January 2022, 18:30 by RockyRoer)

The Rules

  1. Normal sudoku rules apply.
  2. Numbers cannot repeat inside a killer cage.
  3. Numbers outside the grid, when given, indicate how many cells in that row or column must be shaded.
  4. Killer cages are either entirely shaded, or entirely unshaded. A killer cage total is shaded if and only if it is value is incorrect.
Example:
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The Puzzle

Play on f-puzzles or on CTC App

Solution code: The shaded cells in the first three rows (?? digits)

Last changed on on 13. January 2022, 00:47

Solved by bigger, Steven R, Jesper, abed hawila, SudokuExplorer, dandbdi, chippers, SirWoezel, coastal222, lerroyy, DJdoku, DVFrank, nullpuppy, Mody, MalkoMann2, cegie, Statistica, bosjo, henrypijames, 0123coolkid, Kabuki73, valdal, rmn, bernhard, marcmees, twobear, Cublaus, PixelPlucker, mnasti2, RubberMittens, killer_rectangle, Vebby, apwelho, Genomico
Full list

Comments

on 18. October 2022, 07:33 by RubberMittens
Very hard but very cool. Love the puzzle and the logic!

on 3. September 2022, 06:35 by mnasti2
I found that quite difficult but expertly crafted!

on 13. January 2022, 01:05 by SudokuExplorer
Fun concept and solves very smoothly, thanks! :-)

on 13. January 2022, 00:47 by RockyRoer
Added rule that repeated digits are not allowed in cages.

Last changed on 13. January 2022, 00:07

on 12. January 2022, 23:58 by SudokuExplorer
Are digits permitted to repeat in an unshaded cage or in a shaded cage?

Reply: numbers may not repeat in cages, regardless of shading.

Difficulty:3
Rating:93 %
Solved:34 times
Observed:4 times
ID:0008SM

Shading puzzle

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Solution code:

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