The set contains 30 different cubes, plus a 6 x 5 grid and a puzzle/solution booklet. Each cube features the same 6 base colours. The order of these colours varies from cube to cube. Every side on every cubefeatures part of a *line*. The line appears in 10 different colours. Th epuzzle all require the lines and/or base colours to be connected in different ways, following increasingly complex rules. 5+