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 "Unknown230"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "r5r1/ppp2pk1/3p4/2bNp2Q/2BnP3/3P4/PPP2qPP/2RK3R b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Qxg2 ( { Black can try: } 1... Rh8 2. Qg5+ Kf8 3. Qe7+ Kg8 ( 3... Kg7 4. Qg5+ Kf8 5. Qe7+ Kg7 6. Qg5+ { Draw. } ) 4. Nf6+ Kg7 5. Qxf7+ Kh6 6. Ng4+ Kg5 7. Qg7+ Kf4 8. Nxf2 { White wins with a large material advantage. } ) 2. Qxf7+ Kxf7 3. Nf4+ Ke7 4. Nxg2 Rxg2 { Black wins with a large material
advantage. } 0-1