Unzicker vs Taimanov
[Event "Saltsjobaden"] [Site "?"] [Round "0"] [White "Unzicker"] [Black "Taimanov"] [Result "0-1"] [ECO "B33"] [Opening "Sicilian: Open, 2...Nc6"] {The pieces take over the duty of guarding the square in front of the backward pawn} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nf3 h6 8. O-O Be7 9. Re1 O-O 10. h3 a6 11. Bf1 b5 12. a3 Bb7 13. b3 Rc8 14. Bb2 Rc7 { Preparing on the one hand to double Rooks on the c-file; on the other hand to redouble his pressure against e4 and d5 by means of ...Qa8} 15. Nb1 (15. Nd5 Nxd5 16. exd5 Nb8 {The backward pawn is screened}) 15... Qa8 $1 { A very effective layout of hte Black pieces} 16. Nbd2 Nd8 17. Bd3 Ne6 18. Rc1 Rfc8 19. Nh2 {Black's pressure down the half-open c-file, combined with his attack on the e-pawn, holds White completely on the defensive. The idea of this Knight move is to prop up the e-pawn by Pf3 if the need arises} 19... Nd7 20. Nhf1 Ndc5 21. Ng3 g6 22. Ne2 $2 (22. Ndf1 Nxe4) 22... Bg5 $1 (22... Nxe4 23. Nxe4 Bxe4 24. Bxe4 Qxe4 25. Nc3 Qd4 26. Qxd4 exd4 27. Nd5 $16 { White has the better game with firm control of the d5 square}) 23. Nc3 Nd4 24. Ncb1 (24. -- Nxd3 25. cxd3 Bxd2 26. Qxd2 Nxb3) 24... d5 $1 {This advance of the backward pawn has automatically been made possible by the systematic pressure of the Black pieces against the square in front of it} 25. exd5 Nxd3 26. cxd3 Rxc1 27. Bxc1 Bxd5 {The extraordinary thing about this game is that Black, who up to now has been demonstrating that his own backward pawn was no disadvantage, now proceeds to show that White's backward pawn is a very great disadvantage. The isolated White d-pawn in fact shows all the characteristics of a backward pawn, but only in the negative sense.} 28. f3 Rc2 $1 29. a4 (29. Rxe5 Bxf3 30. gxf3 Rxc1 31. Qxc1 Nxf3+) 29... b4 30. Kh1 Qc6 { Hardly a move for White} 0-1
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OpeningB33 — Sicilian: Open, 2...Nc6