Challenger Gary Kasparov launched the chess equivalent of a seventh-inning rally yesterday in the ninth game of the World Chess championship. A game that had been solid but rather dull for its first 30 moves suddenly erupted into frenzied activity when Kasparov, playing white, began to trade pieces and launched a two-pronged attack on the kingside and in the center.

Kasparov's late flurry of activity changed a static to a dynamic situation in which Karpov began to feel pressure. The challenger heightened the pressure by making a last-minute decision (literally, with only a minute on his clock) to continue the game for a couple of moves beyond move 40, where it would normally have been adjourned.

White/Black--Kasparov/Karpov

1. e4e5 2. Nf3Nc6 3. Bb5a6 4. Ba4Nf6 5. 0-0Be7 6. Re1b5 7. Bb3d6 8. c30-0 9. h3Bb7 10. d4Re8 11. Nbd2Bf8 12. a4h6 13. Bc2Nb8 14. Bd3c6 15. Nf1Nbd7 16. Ng3Qc7 17. Bd2g6 18. Qc1Kh7 19. b3Bg7 20. Qc2Nf8 21. Be3Ne6 22. Rad1Rac8 23. Bf1Bf8 24. Rd2Qb8 25. Qb1Ba8 26. b4Bb7 27. axb5axb5 28. Red1Qc7 29. Rc1Bg7 30. Rcd1Rcd8 31. dxe5dxe5 32. Rxd8Rxd8 33. Rxd8Nxd8 34. c4bxc4 35. Bxc4Ne8 36. Qa2Nd6 37. Bb3Nb5 38. h4Nd4 39. Bxd4exd4 40. h5Qe7 41. Qd2c5 42. Qc2(sealed) Adjourned