Unclassified objects cycle present geometrical structures in strong black and gray transitional tones, intended to illustrate some unclassified abstract objects. Interplay of sharp geometrical structures and black and gray tones leads to intensive feeling of volume of these prints.

These algorithmic images are generated by computer programs. Technically, this cycle is based on successive covering of a plane with rectangles, where positions of rectangles in the plane, their sizes and level of gray color applied to them are governed by mathematical models based on periodic functions.