In 1969 Moutashar's focus became the square and black/white colour schemes: Using the square as a starting point and with a strict adherence to rhythmic, systemized mathematical compositions, he created a series of paintings known as ‘Zones’. Moutashar produced a series of these throughout the 1970s. Through these new geometric and kinetic abstract paintings, Moutashar was able to reconnect with Islamic art and his own cultural heritage. The mathematical and organisational principles of Islamic art had always fascinated him – in later years he would develop similar links between geometry and Arabic calligraphy.