U Cannot Be Serious: Avant-Garde Strategy in Chess - Basman & WellingU Cannot Be Serious: Avant Garde Strategy in Chess by Michael Basman & Gerard Welling This book is written with the intention to introduce the reader to the creative chess ideas of Michael Basman. He gave up more intense regular tournament chess around the turn of the millennium, to concentrate his energy on the development of school chess. And that is what he is mainly known for in recent times, as the motor who made the UK Chess Challenge blossom.