No Chess Grandmaster is normal; they only differ in the extent of their madness.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown80"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "8/8/3p4/p2P3p/P1P2k2/8/7K/8 w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. c5 Ke5 2. c6 Kxd5 3. c7 Ke4 4. c8=Q { White wins with a large material advantage. } 1-0