[Event "Bucharest Int 10th"]
[Site "Bucharest"]
[Date "1971.06.15"]
[Round "4"]
[White "Bobotsov, Milko Georgiev"]
[Black "Averbakh, Yuri L"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 h6 5. Bxf6 Qxf6 6. Nc3 c6 7. e3 Nd7 8. Bd3 Qd8 9. O-O Be7 10. e4 dxc4 11. Bxc4 O-O 12. Qe2 Re8 13. Rad1 b5 14. Bd3 Bb7 15. e5 b4 16. Ne4 Qb6 17. Nfd2 Qxd4 18. Nc4 Nxe5 19. Nf6+ Bxf6 20. Bh7+ Kxh7 21. Rxd4 1/2-1/2