[Event "Chigorin Memorial-18"]
[Site "Sochi"]
[Date "1984.10.20"]
[Round "15"]
[White "Boensch, Uwe"]
[Black "Yrjola, Jouni"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2515"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 Na6 8. Nxc4 c5 9. dxc5 Be6 10. Nfe5 Nxc5 11. Be3 Rc8 1/2-1/2