Ключевые слова: 3d, aperture, arm, arrangement, background, block, burr, connected, cross, dimensional, empty, finger, form, game, geometric, geometry, goal, hand, hole, interlocking, isolated, jigsaw, logic, manycolored, mechanical, multicoloured, object, opening, orifice, pentominoe, piece, pieces, place, placing, problem, putting, puzzle, shape, solid, solution, task, three, threedimensional, tile, tiling, toy, varicolored, white, wood, wooden,