[Event "Candidates Curacao"] [Site "?"] [Round "0"] [White "Tal"] [Black "Petrosian"] [Result "0-1"] [ECO "C11"] [Opening "French: Burn, 5.Nxe4"] 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Nbd7 6. Nxf6+ Nxf6 7. Nf3 c5 8. Qd3 Be7 9. Bxf6 Bxf6 10. Qb5+ { A bad move which wastes time while developing the Black pieces.} 10... Bd7 11. Qxb7 {Vulnerable b-pawns are often referred to as poisoned pawns because the time wasted in capturing them is often used by the opponent to develop forces and punish the greedy consumer.} 11... Rb8 12. Qxa7 Rxb2 13. Bd3 {White gives back the extra pawn fearing the Black bishop on f6. Now we see how the pawn he ate earlier turns out to be "poisoned".} 13... cxd4 14. O-O Bc6 {The tactics have cleared with Black standing better thanks to his two center pawns.} 15. Qa3 {White desperately tries to keep the Black king from castling.} 15... Qb6 16. Bc4 Rb4 {A good move which blocks the White queen from the a3-f8 diagonal.} 17. Qd3 O-O 18. a3 Ra4 19. Rfd1 Qa7 20. Ra2 Rxc4 { White resigned as 21. Qxc4 Bd5 followed by Bxa2 would leave White a piece down. } 0-1