Polugaevsky, Lev VS Ivkov, Borislav 1972.12.14

[Event "Palma de Mallorca Gran Torneo-08"]
[Site "Palma de Mallorca"]
[Date "1972.12.14"]
[Round "14"]
[White "Polugaevsky, Lev"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nf3 g6 3. Nc3 d5 4. d4 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 a6 8. Bf4 b5 9. Qxc7 Qxc7 10. Bxc7 Bb7 11. e5 Nd5 12. Nxd5 Bxd5 1/2-1/2