[Event "Chigorin Memorial-03"]
[Site "Sochi"]
[Date "1963.06.13"]
[Round "11"]
[White "Bobotsov, Milko Georgiev"]
[Black "Bilek, Istvan"]
[Result "1/2-1/2"]

1. d4 c5 2. d5 e5 3. e4 d6 4. c4 Be7 5. Nc3 Nf6 6. Bd3 O-O 7. Nge2 Ne8 8. f3 Nd7 9. g4 Bh4+ 10. Ng3 Kh8 11. Be3 a6 12. Qd2 Rb8 13. O-O g6 14. a3 Nc7 15. b4 b5 16. cxb5 Nxb5 17. Nxb5 axb5 18. Ne2 c4 19. Bc2 Nb6 20. Nc3 Bd7 21. Kh1 Na4 22. Bxa4 bxa4 23. Rg1 f5 24. gxf5 gxf5 25. Bh6 1/2-1/2