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Chess Problem Curiosa
Robert F.A. Zwaal is a Professor of Biochemistry at the Cardiovascular Research Institute Maastricht, Medical Faculty, Maastricht University, in The Netherlands. His site contains some fairly esoteric (for me, anyway) topics, including "Regulation and physiology of membrane phospholipid asymmetry" and "Membrane phospholipid dependent reactions in blood coagulation." We're more interested in the page containing "Chess Problem Curiosa". Curious, indeed! One of his problems we featured in a previous issue of The Chessville Weekly, and it generated more reader mail than any other to date. Chess Problem Curiosa has seventeen more to offer, gathered from various sources, including the famous Professor Raymond Smullyan (author of, among other things, Chess Mysteries of the Arabian Knights and The Chess Mysteries of Sherlock Holmes), as well as some of Zwaal's own compositions. All of the problems contain some very unusual situations, or requirements, such as "White to move and not checkmate in one", or the seemingly innocuous "White gives mate in one", which is not nearly so easy as it sounds. Chess Problem Curiosa is a pleasurable site to visit: the pages load quickly, and the diagrams are easy to see. The pieces used in the diagrams are not exactly Staunton, but they are easy enough to understand, and do not hinder the enjoyment of the problems. See the diagram below, which is from the Chess Problem Curiosa site. We'll
conclude this short review by leaving you with another problem from Robert's
collection, credited to some fellow named "unknown":
White begins and wins For the solution to this problem, click here. Enjoy all of the problems at Chess Problem Curiosa!
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