Petrosian vs Schweber
[Event "Stockholm Interzonal"] [Site "?"] [Round "0"] [White "Petrosian"] [Black "Schweber"] [Result "1-0"] [ECO "E73"] [Opening "King's Indian: 5.Be2 O-O"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 h6 7. Be3 e5 8. d5 c6 9. h4 cxd5 10. cxd5 Nbd7 11. h5 g5 {Forced as Black would come under a direct kingside attack if he allowed the h-file to be opened.} 12. f3 a6 13. g4 { The White pawn chain from d5-h5 holds the Black army in a complete lock. Black has no space for his pieces and must sit and wait while his opponent finds a plan of attack.} 13... b5 14. a4 b4 {The Black pawn comes rushing forward. However, it's not backed up by a single Black piece.} 15. Nb1 a5 16. Nd2 Nc5 { 16...Ba6 17.Bxa6 Rxa6 18.Nc4 when White keeps all his advantages, more active pieces, better pawn structure and targets to attack a5.} 17. Bxc5 dxc5 { White has traded his good bishop for a different type of advantage: weak c- pawn.} 18. Bb5 Bb7 19. Ne2 Ne8 20. Bxe8 Rxe8 {White has the big advantage of having the two knights in a closed position. The bishops being better in open positions.} 21. Nc4 Ba6 22. Qb3 Qf6 23. Rc1 Bf8 24. Ng3 Bc8 {Played with the idea of trading the bishop for the knight in the event of Nf5. However, Black's pieces have been reduced to total passivity.} 25. O-O Rd8 26. Kg2 Ra7 27. Rf2 {The White rook is headed over to the c-file to put more pressure on the weak Black pawn.} 27... Kh7 28. Rfc2 Qa6 {A miscalculation which costs Black a pawn. However, this wouldn't have changed the result since it was only a question of time before White wins.} 29. Nxe5 Rc7 30. Nc4 Bg7 31. Qd3 Kg8 32. Rd2 Re7 33. e5 {White returns the e-pawn in order to promoter a series of exchanges which will reduce the game to an elementary ending.} 33... Bxe5 34. Nxe5 Rxe5 35. Qxa6 Bxa6 36. Rxc5 Bc8 37. Rxa5 f5 38. gxf5 Bxf5 39. Nxf5 Rxf5 40. Rb5 Rdf8 41. d6 Rxb5 {41...Rxf3 42.d7 would cost Black a rook.} 42. axb5 Kf7 43. d7 {Black resigned. 43.d7 Rd8 44.b6 Ke7 45.b7 b3 46.Kg3 Kf7 47.b8Q Rxb8 48.d8Q wins easily.} 1-0
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OpeningE73 — King's Indian: 5.Be2 O-O
TournamentStockholm Interzonal