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 "Unknown198"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "1R6/2r2p2/2P4p/1Pk1p1p1/3p4/P1pK1P1P/6P1/8 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... f5 2. Re8 ( { White can try: } 2. Kc2 e4 3. fxe4 fxe4 4. Rb7 Rc8 5. c7 Kc4 6. b6 d3+ 7. Kc1 Kb3 8. Rb8 d2+ 9. Kd1 e3 10. Rxc8 c2+ 11. Ke2 d1=Q+ 12. Kxe3 c1=Q+ 13. Ke4 Qf4# ) 2... Kxb5 3. Rxe5+ Kxc6 4. Rxf5 Kd6 5. Kxd4 c2 6. Rd5+ Ke6 7. Re5+ Kf6 8. Re1 c1=Q 9. Rxc1 Rxc1 { Black wins with a large material
advantage. } 0-1