[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.28"]
[Round "14"]
[White "Donner, Jan Hein"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 Nbd7 7. Qd2 c6 8. Nf3 e5 9. O-O Re8 10. d5 c5 11. Ne1 Qe7 12. Nd3 Qf8 13. f3 a6 1/2-1/2