5/28/2022 – Polarchy or Polyarchy is the idea to have the burden of government on the shoulders of multiple people, as opposed to the monarchy that only sees one king or queen with all the burden. In chess, the king remains the sole objective of the game, but in rare cases one might be faced with the constellation that said king is joined not only by one but two queens. | Photo: Pixabay

4/30/2022 – Castling is a fascinating move. According to Wikipedia, "it originates from the 'king's leap', a two-square king move added to European chess between the 14th and 15th centuries, which took on its present form in the 17th century". The intricacies of the rules of castling have inspired many studies. Specialized columnist Siegfried Hornecker presents some of them. | Photos: Pixabay

3/26/2022 – Due to recent events, in these times of turmoil that have divided the world, I will this time not speak on behalf of the WFCC, but on behalf of my own, my personal opinion. | Photos: Pixabay

2/26/2022 – Humans formed belief systems based on stellar bodies. If you ask an astrologer about it, he might tell you his beliefs which of those have the most influence on your life. If you ask a scientist, he will likely name at least two: Sun and Earth. Ancient cultures already measured a phenomenon that - relative to each other - Earth rotates around the sun as well as around its own axis. A full rotation around itself is called a "day", a full rotation around the sun a "year". Relatively speaking, that is in relation to the sun, Earth returns to its current position after one year. One hundred such rotations are called a "century". A man who is on Earth for such a time is called a "centennial". A centennial who contributes to endgame theory is called... Yuri Averbakh. | Photo of Averbakh: Eteri Kublashvili

1/29/2022 – Endgame studies sometimes go to extremes, e.g. by demonstrating a win in 584(!) moves in a study, in which King, Rook, two Bishops (standing on the same colour), and pawn fight against King, Queen and Pawn. But are these and similar studies relevant for the theory of the endgame or practical games? It depends. Siegfried Hornecker takes a closer look.

12/25/2021 – The Serbian name "Darko" comes from "Dar" for "gift". Good wishes are bestowed often upon our children, be it luck with the Biblical name "The son of luck" or "Benjamin", or in this case, the gift of being gifted. A special gift indeed was given to Darko Hlebec, an interesting composing style. Study specialist Siegfried Hornecker presents presents examples of his work and Darko's comments about it.

11/27/2021 – Richard Kenneth Guy was a British mathematician, with a passion for chess. Siegfried Hornecker's "Study of the Month" is all about this great "Guy", his life, and his studies. The professor of mathematics, who composed almost 200 endgame studies for the "British Chess Magazine", died last year at the age of 103. | Photo: Wikipedia

9/25/2021 – In football, the German word "Schwalbe" (the swallow bird, and the football term for "diving") is an attempt by a player to feign a foul by deliberately dropping himself in a tackle with an opposing player to gain an unfair advantage. The Schwalbe in chess, doesn't mean that players fake a fall to the ground, and knock off the chess pieces to work out a mate in four. Columnist Siegfried Hornecker shows us the way on how to solve chess problems with the thematic idea of the Schwalbe, and takes us on a journey about the history of the German chess problem society. | Photo: www.dieschwalbe.de

8/29/2021 – A special kind of magic trick is to turn one thing into another — a.k.a. a switcheroo. In endgame studies, one such transformation is turning a stalemate into a checkmate. Columnist Siegfried Hornecker shows phenomenal examples which made use of this fantastic ‘magic trick’. | Pictured: Ernest Pogosyants

7/31/2021 – In a multifaceted column, Siegfried Hornecker looks at a young Austrian chess player who went missing in the Alps and never returned, how geometry on the chessboard is vastly different from a Euclidean two-dimensional plane, a curious episode from the 1951 World Championship match between Botvinnik and Bronstein, and a couple of endgame studies created by women composers. | Pictured: Julius Perlis

6/26/2021 – In a fascinating look at the possibilities granted by knight moves in endgame studies, practical games and mathematical problems — exploring, among others, underpromotions, stalemates and magic squares — columnist Siegfried Hornecker demonstrates the width of potential finesses that can be created with one of the two types of minor pieces appearing on a chessboard.

5/29/2021 – In his latest column, Siegfried Hornecker writes about the work of judges in endgame studies tournaments. He first introduces how computers have also made their way into this field, before noting that, however, “it will always be down to an individual judge, or a panel of judges, to finally evaluate a composition”. | Pictured: Clifford E. Berry and the Atanasoff-Berry Computer, or ABC, c. 1942 | Photo: Iowa State University