[Event "Karlsbad"] [Site "Karlsbad"] [Round "0"] [White "Maroczy"] [Black "Rubinstein"] [Result "1/2-1/2"] [ECO "C10"] [Opening "French: Rubinstein, 4...Nd7"] {Rubinstein following in the footsteps of Steinitz} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 c5 8. dxc5 Bxc5 9. O-O O-O 10. Bg5 Be7 11. Qe2 {A familiar sort of position. White has teh advantage due to his Kingside attacking chances as well as a Queenside pawn majority, which can be important in the ending. We shall see how Rubinstein begins to build a satisfactory defence. The first task is to develop his QB} 11... Qc7 { Protecting the b-pawn and thus prepares to develop the Queen Bishop on d7} ( 11... b6 $2 12. Bxf6 Bxf6 13. Qe4 $18) (11... Bd7 12. Bxf6 Bxf6 13. Qe4) 12. Rad1 Rd8 {Further preparation for ... Bd7 is perhaps superfluous. It seems overcautious, and preference should have been given to 12. ... Bd7, especially as it would have enabled d8 to be occupied by the Queen Rook} (12... Bd7 13. Bxf6 Bxf6 14. Bxh7+ Kxh7 15. Qd3+ g6 16. Qxd7 Qxc2 $11) 13. c4 $1 {Not only beg inning to mobilize the Queenside majoriy but also depriving Black of his use of d5} 13... Bd7 14. Bd2 {This brings to light another advantage of White's previous move. The B is going to take up an ideal post at c3, from which post it can play an active role in a Kingside attack} 14... Rac8 15. Bc3 Be8 { Thus Black has completed his development} 16. Qc2 {White "sacrifices two tempi in order to force a weakening of Black's Kingside, but how important this weakening will be, compared to the loss of time, is difficult to say.} (16. Ne5 ) 16... h6 17. Ne5 {With such an advanced post as this, it is routine to be able to build up a Kingside attack} 17... Nd7 { This is the correct method. The outpost Knight must be removed} 18. Nxd7 (18. -- Nc5) 18... Bxd7 19. Qe2 Bc6 (19... -- 20. Qg4 Bf8 21. Bf6 Re8 22. Qe4 { Black will have to weaken his King position further. We know from Steinitz that weaknesses must be avoided if at allpossible}) 20. Qg4 (20. f4 $1) 20... Bf8 21. f4 {White threatens to reinforce the attack by Pf5} 21... Rxd3 $1 { Precisely the right moment Black plays his trump card. For the sacrificed exchance he gets a pawn and retains the Bishop pair, while at the same time one of White's most dangerous attacking pieces is annihilated. We discussed this sort of exchange sacrifice in Chapter4} 22. Rxd3 Be4 { It is now White's turn to think of defence} 23. Rd2 (23. Rg3 Qxc4 24. Bxg7 $2 Bf5 25. Qh5 Bxg7 26. Qxh6 Bg6 27. Qg5 Bd4+ {the defence triumphs}) 23... Qxc4 24. Rfd1 Bd5 {With the fall of the c-pawn, Black has the d5 square again available for his pieces} 25. h3 f5 26. Qg6 Qxf4 (26... Qxa2 27. Rxd5 exd5 28. Qe6+) 27. Rxd5 $1 { The Bishop is too powerful, and White is glad enough to give back the exchange} 27... Qe3+ $1 28. Kh1 exd5 29. Qxf5 Rd8 30. Rxd5 Qc1+ 31. Kh2 Bd6+ 32. Be5 Bc7 $1 {The last defensvie move in this game. Black's troubles are now over} 33. Rxd8+ Bxd8 34. Qd7 Qg5 35. Bg3 (35. Bxg7 Qf4+) 35... Qe7 36. Qxe7 Bxe7 37. Be5 Kf7 38. Kg3 g6 39. Kf4 Ke6 40. Ke4 h5 41. b3 1/2-1/2