This book contains chess compositions of two Ukrainian chess composers Gennady Kozyura and Valery Kopyl for the period from 2003 to December 2020. Collaborative problems are arranged chronologically on chess charts and broken down into two sections. This is the first part of the publication of the works of Gennady and Valery. The publishing house plans to publish the second part of the collection, which will include the individual problems of the composers.
