Author's selection of his 157 best chess compositions with detailed explanatory comments (13 two-movers, 15 three-movers, 3 moremovers, 39 helpmates, 52 selfmates and 35 fairy problems). In the whole history of chess composition, there have been less than hundred Grandmasters. Israeli chess composer Uri Avner (1941-2014) was definitely one of the very best, especially in the selfmate genre (the only one who won 4× the first place in the World Chess Composition Tournament). Edited by Jacques Rotenberg and Raffi Ruppin, problem comments by Kjell Widlert. 2 pictures.