[Event "Budapest-Moscow"] [Site "?"] [Round "0"] [White "Smyslov"] [Black "Florian"] [Result "1-0"] [ECO "D90"] [Opening "Gruenfeld: Three Knights Variation"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 {This early queen move is justified because it places direct pressure on the center. Even though the queen often travels a bit in this opening, White is usually rewarded by complete control of the center.} 5... dxc4 6. Qxc4 O-O 7. e4 {This is a very strong center and Black has to work very hard to achieve counterplay. This opening figured prominently in some of the World Championship matches between Karpov and Kasparov.} 7... Na6 8. Be2 c5 9. d5 e6 { Black begins the assault on the White center.} 10. O-O exd5 11. exd5 Qa5 { This move is a mistake as the queen has no future on the a5-e1 diagonal. 11... Bf5 Controlling key central squares is more in the spirit of the opening. For example 12.a3 takes b4 away from the Black knight. 12...Re8 13.Rd1 Ne4 14.Be3 Nd6 when White's d-pawn is firmly blockaded.} 12. a3 Bf5 13. Qh4 {With the idea of playing Bh6 thus removing an important Black defender the dark squared bishop.} 13... Rfe8 14. Bh6 Ne4 15. Bxg7 Kxg7 16. Ng5 Nxc3 {This is a mis take as Black removes yet another piece from the protection of his king. Better was 16...Nxg5. 16...Nxg5 17.Qxg5 Qd8 White stands a little better due to Black's knight languishing in exile on a6.} 17. Qxh7+ Kf6 18. bxc3 Kxg5 {White has sacr ificed a piece and the king hunt begins. 18...Rxe2 19.f4 The Black king is caught in a mating net after 19...Qc7 20.d6 Qd7 21.Rae1 Rxe1 22.Rxe1 Re8 23. Re7 Rxe7 24.Qh8+} 19. Qg7 { This quiet move takes away the Black king's retreat squares.} 19... Re4 { 19...Rxe2 20.f4+ Kg4 21.h3+ Kh4 when White has a forced mate in two.} 20. f4+ Rxf4 21. Rxf4 Kxf4 22. Rf1+ Ke3 {The Black king must walk up into White's welcoming army. 22...Ke4 23.Bc4 With a winning attack for White. If you don't see how try defending the Black position against Gambit.} 23. Qe5+ Kd2 24. Bc4 Qxc3 25. Rf2+ {Black resigned as after he moves his king out of check White simply takes off the Black queen.} 1-0