No one will regret the time dedicated to chess, as it will help in any profession.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Spasskij"] [Black "Larsen"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "6k1/1p3p2/p2prPq1/8/7p/2Q5/PP3RP1/6K1 w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. Qc8+ Kh7 2. Qxe6 fxe6 3. f7 Qh6 4. f8=Q Qxf8 5. Rxf8 { White wins with a large material advantage. } 1-0