Cageless killer sudoku...

We all know what regular killer sudoku puzzles are, but there are is a variant of them called cageless killer sudoku.

These puzzles have all elements of a killer sudoku in place, apart from the dotted cages. So the numbers are there, but not the dots around the cells that they belong to (the cages).

They are actually usually easier than normal killer sudoku if they are not impossible - one thing or the other.

It is an interesting variant, but not one that I particularly find that interesting, I do prepare the standard killer sudoku puzzles to this particular variant - not of those things that is an interesting idea, but not a particularly good one!