OAK (Over-Algebraic-Killer)

Over: more candidates allowed than the row length

Algebraic: cage totals do not have to be sums: note some of us were creating these before KenKen hit the English speaking streets

Killer: a debased way of saying samunamupure (noting of course that sudoku is a debased way of saying number place)

This is a basic Ken-Ken 6*6 however instead of the candidates being 1 to 6 they are a set of six numbers from 0 to 9 and part of the puzzle is, of course, to derive which six.

OAK 1

This is easy-peasy to get you going.

The cages without a sign are sum cages, however they can be treated as unknown-operator and the puzzle is still straightforward.

OAK 2

This one is harder. Note I allow a certain element of T&E in eliminating candidates.

The cages without a sign are sum cages.

If you wish to work on a solver use the first six rows and columns of a 12*12 Latin square.