Chaos checks


In september last year, I wrote about ‘Vinken’ or ‘Checks’, a Sanders puzzles publication. My main comment was that it was a nice puzzle variation, but that the puzzles were slightly too easy. Sanders puzzels corrected this in later issues.

I did come up wit a slight variation, though the puzzle I designed didn’t make the puzzle difficult enough for my tast. Anyway, I’d like to present this variation to the world.

The rules are simple:
– every row and column, and every 9 sized area, contains 3 checks.
– the checkmarks are never adjacent horizontally or vertically. They may be adjacent diagonally.
– some checkmarks have been pre-filled, as well as some empty squares.

Here are three examples.
puzzle 1*
As you can see some checks and some empty positions have been given. You hve to derive the position of the remaining checks.
Vinkies-chaos 9x9 nr1 exercise

puzzle 2*
This time only some empty positions have been given as clues.
Vinkies-chaos 9x9 nr2 exercise

puzzle 3**
Again only some empty positions have been given as clues.
Vinkies-chaos 9x9 nr3 exercise

You can check your solutions here

A new puzzle is published every Friday.

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