One of the things that got me into playing chess was solving the chess puzzles in our local newspaper. They're pretty fun, usually revolving around how to either create a fork (an attack on two pieces at the same time) or end a game by checkmate. Sometimes they're created by chess theorists, but sometimes they also come from real life games.
This one is a bit of both. I'm sure somebody else has noticed this, but the chess puzzle given here is from my own analysis of the game found at Chessgames.com. In this game, Gaprindashvili vs. Veroci-Petronic (1974), women's world chess champion Nona Gaprindashvili (white) passed up a possible checkmate for a draw by perpetual check. From the position given, it's white to move and mate in 4.
Chess Puzzles
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