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 "Unknown110"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[ECO "A00"]
[FEN "8/8/8/2R1Kbk1/4ppp1/8/5P2/8 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... e3 ( { Black can try: } 1... g3 2. fxg3 fxg3 3. Rc1 Kg4 4. Kd4 g2 5. Ke3 Kg3 6. Re1 Kh2 7. Kf2 e3+ 8. Kxe3 g1=Q+ 9. Rxg1 Kxg1 { Draw. } ) ( { Black
can also try: } 1... f3 2. Kd4 Kf4 3. Ra5 Bg6 4. Ra8 g3 5. Rf8+ Kg4 6. fxg3 Kxg3 7. Ke3 Kg4 8. Rf4+ Kg5 9. Rf8 { Likely draw. } ) 2. fxe3 f3 ( { Black can
also try: } 2... fxe3 3. Rc1 g3 4. Kd4 e2 5. Ke3 Bg4 6. Rg1 Kh4 7. Rh1+ Bh3 8. Kxe2 g2 9. Rg1 Kg3 10. Ke3 Be6 11. Rxg2+ Kxg2 { Draw. } ) 3. Kd4 g3 4. e4 g2 5. Rxf5+ Kg4 6. Rf6 g1=Q+ 7. Ke5 Qa1+ 8. Ke6 Qxf6+ 9. Kxf6 f2 10. e5 f1=Q+ { Black wins with a large material advantage. } 0-1