Normal 6x6 sudoku rules apply. (Place the digits 1-6, once each, in every row, column and 2x3 block.) The digit in a coloured square indicates how many circles of that colour contain a digit bigger than itself.
Normal 6x6 sudoku rules apply. (Place the digits 1-6, once each, in every row, column and 2x3 block.) The digit in a coloured square indicates how many circles of that colour contain a digit bigger than itself.