Ryszard Winiarski was a Polish artist and stage designer, best known for his geometric and monochromatic compositions exploring the intersection of art, mathematics and probability theory. He is regarded as one of the leading figures in Polish post-war conceptual art and devoted much of his artistic practice to investigating the role of chance and probability in the creative process.

Winiarski initially studied at the Warsaw University of Technology before pursuing painting at the Academy of Fine Arts in Warsaw. His technical and mathematical background profoundly influenced his artistic practice. By combining the geometric language of Constructivism with mathematical systems, he created works in which randomly generated patterns and statistical distributions were translated into visual compositions.

His works are often characterised by grids and small black-and-white squares, with each individual form contributing to a larger, systematically structured whole. Over time, he also developed colour compositions and experimented with alternative materials and forms of expression. Rather than allowing traditional artistic intuition and technique to determine the composition, Winiarski explored how rules, probability and chance could serve as the starting point for artistic creation.

Winiarski occupies a prominent position in the field of European post-war geometric and conceptual art. Through his sustained exploration of the relationship between art, science and chance, he developed a distinctive artistic practice in which mathematical principles became the foundation for an independent and innovative visual language.