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Study of the Month: April 2021
What is an ‘endgame study’? By definition, it is (unless an author specifies otherwise) a position in which White wins or draws
in exactly one way.
How do you know that there is exactly one way? Endgame tablebases (EGTB) are a proof, but unlike many other genres, there is no way to use brute force or heuristically solve an endgame study to find a complete proof of it being correct. That is where cook hunters come in. A cook is an incorrectness in an endgame study, either a refutation or a dual. A dual first and refutation later might lead to a unique solution, but not to a correct study usually, as the author’s intention is lost. Let’s explore cooks!