[Event "Soviet Championship"] [Site "?"] [Round "0"] [White "Furman"] [Black "Spassky"] [Result "0-1"] [ECO "A04"] [Opening "Reti: 1...c5"] 1. Nf3 c5 2. c4 g6 3. e4 Bg7 4. d4 cxd4 5. Nxd4 Nc6 6. Be3 {The game started out as a Reti Opening but play has now transposed into a Sicilian Defense. Learning how to handle transpositions is among the more difficult tasks of studying the opening.} 6... Nh6 {The idea behind this move is to rapidly advance the f-pawn to f5 and attack the White center.} 7. Nc3 O-O 8. Be2 f5 9. exf5 Bxd4 {This may seem surprising, since the fianchettoed bishop is Black's most powerful weapon in this opening variation. But at the time it was thought to be good.} 10. Bxd4 {White plays the obvious move. But capturing at h6 would have been more effective, according to Spassky.} 10... Nxf5 11. Bc5 d6 12. Ba3 {The bishop is now misplaced and has little effect. White will have to invest a lot of time and energy bringing it back into the game on the a1-h8 diagonal.} 12... Nfd4 13. O-O Bf5 14. Rc1 {The threat was Nc2.} 14... Qd7 15. Nd5 Rf7 { Black's pieces are much better coordinated than White's and the f-file can be used to mount an attack on the kingside.} 16. b3 Raf8 17. Bb2 e5 18. b4 Be6 { Now White takes advantage of the retreat of the bishop to take control of the b1-h7 diagonal. Furman perhaps expected Spassky to accept the sacrifice of a pawn at b4.} 19. Bd3 {Spassky has more on his mind than mere pawns.} 19... Bg4 {This is a crushing blow which wins the game for Black. The threat is Nf3+ with a mating attack.} 20. f3 {Now Black gets to sacrifice a different piece! 20.Qd2 Nf3+ 21.gxf3 Bxf3 22.Qg5 Rf4 23.Nxf4 Rxf4 24.h3 Qxh3 25.Bxe5 Rg4+ 26. Qxg4 Qxg4+ 27.Bg3 Qh3} 20... Bxf3 21. gxf3 Nxf3+ 22. Kh1 Qh3 23. Rf2 Ne1 { Black threatens Rxf2, but if the rook leaves the second rank, then there is a mate at g2, while if it moves laterally it opens up the f1-square for invasion. Furman resigned instead of making such a decision.} 0-1