At the beginning of 2017 Siegfried Hornecker, who later wanted to be called Sarah, published his first "Study of the Month" on the ChessBase website, which has appeared regularly ever since. These were knowledgeable and entertaining columns in which Hornecker introduced a wide audience to the world of studies, compositions and problems. However, it has now been announced that Hornecker died on Saturday 22 March, shortly after his/her 38th birthday, as a result of sepsis. An obituary by Martin Minski. | Photo: Martin Minski