**Prasad - Koshy,Varugeese [B33]**

Madras, 1995

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1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 Be6

[This is the main alternative to Sveshnikov's 8...b5 and probably the really playable alternative. Other moves seem rather dubious, for example: 8...Be7 9.Nc4 Nd4

*(9...Be6 10.Bxf6 gxf6 11.Ne3 Qd7 12.Ncd5 Bd8 13.Qh5*gave White a typical light-squared bind in the game Blue-Plater, Hilversum 1947*;*while*9...0–0 10.Bxf6 Bxf6 11.Qxd6 Be6 12.0–0–0 Bg5+ 13.Kb1 Qf6 14.Qc5*left Black with inadequate compensation for his pawn in Estrin-Goldenov, USSR 1956*)*10.Bxf6 Bxf6 11.Nd5 b5 12.Ndb6 Rb8 13.Nxc8 Rxc8 14.c3 Ne6 15.a4!± gave White a clear advantage in Averbakh-Korchnoi, USSR Ch. 1950.; 8...d5 is well met by 9.Nxd5 Bxa3 10.bxa3 Qa5+ 11.Qd2*(11.Bd2*is also possible*)*11...Qxd2+ 12.Kxd2 Nxd5 13.exd5 Nd4 14.Bd3 with an extra pawn and the two bishops.]**9.Nc4 Rc8 10.Bxf6 gxf6**
[Black can avoid weakening his pawn structure with 10...Qxf6 but this loses time. White can keep an edge with 11.Nb6!

*(*and not*11.Nxd6+ Bxd6 12.Qxd6 Rd8 13.Qc5 Nd4 14.Bd3 Qg5„*with excellent counterplay*)*11...Rb8 12.Ncd5 Qd8 13.c3 Tolnai-Honos, Hungarian Team Ch. 1995 continued 13...Be7 14.g3 0–0 15.Bg2 Qe8 16.0–0 Kh8 17.a4 Bd8 18.b4 Ne7 19.a5 Qc6 20.Rc1± with a clear edge.]**11.Ne3 Bh6**[By exchanging off the knight on e3, Black rids himself of his bad bishop and weakens White's control of the d5- and f5-squares. Even so, it does not seem quite enough equalise. An alternative is 11...Ne7 , after which Anand-Morovic, Las Palmas 1993 continued 12.Bd3 Bh6 13.0–0 Bxe3 14.fxe3 Qb6 15.Qc1 Ng8! 16.Kh1 Now Mrovic suggested 16...h5!?*(*in the game he stood worse*16...Qc5 17.Qd2 h5 18.Rad1 h4 19.h3 Kf8 20.Qe2)*after which 17.Nd5 is well met by*(*In my view should keep the tension with*17.Rb1!? ;*or*17.a3*, when the defects in Black's position remain.*)*17...Bxd5 18.exd5 Ne7 19.e4 f5! with for both sides.]**12.Bd3 Bxe3**[Black can transpose into the note to Black's 11th with 12...Ne7 ]**13.fxe3 Qb6 14.Qc1 Na5?!**[A natural move, going for counterplay on the c-file, but White's play on the f-file may prove more effective. Black can still transpose into the note to his 11th with 14...¤e7. Another way to defend the f6-pawn is with 14...h5 15.0–0 Rh6 , but this still seems better for White after 16.Kh1 Ne7 17.a3 h4 Oll-Sermek, Moscow Olympiad 1994 and now 18.h3! leaves Black struggling.]**15.0–0 Ke7 16.Qe1 h5**
[16...Nc4 17.Nd1 would transpose back into the game but this may represent a more accurate move order from Black's point of view as it avoids the pofential perils of 16...h5 17.b3.]

**17.Nd1**[17.b3 was played in a game Ki.Georgiev-Shirov, Biel 1992 when Karpov suggested that Black had to play 17...Rxc3!*(*the game resulted in a quick defeat for Black after*17...Qc5 18.Nd5+ Bxd5 19.exd5 Qxd5 20.Rd1 Rcg8 21.Qf2 Rh6 22.Bg6!!*1–0*)*18.Qxc3 Qxe3+ 19.Kh1 Nc6 20.Rae1 Qc5 21.Qd2*(21.Qxc5 dxc5*leaves Black with good compensation for the exchange because the bad bishop on d3*)*21...Nb8! 22.Rf3 Nd7 , when it is very difficult for to make progress.]**17...Nc4?!**[Going for active counterplay but the knight ends up the poor a3-square. Maybe 17...Qc7 is worth a thought, intending to bring the knight back via c6 to b8 and then out again to d7. That f6-pawn needs protecting.]**18.b3 Na3 19.c4 Qc5 20.Nc3 b5 21.Nd5+ Bxd5 22.cxd5 Qc3**[After 22...Nc2 there follows 23.Bxc2 Qxc2 24.Qh4 Rh6 25.Rxf6 etc.]**23.Qh4 Rh6 24.Rxf6 Rxf6 25.Rf1 Rf8 26.Qxf6+ Kd7 27.Rd1 Qb2 28.h4!**
A very deep move, setting up an evelual endgame win based on the poor position of Black's knight.

**28...a5 29.Qf1 Ke7 30.Rc1 Qd2 31.Rc7+ Kd8 32.Qc1! Qxc1+ 33.Rxc1 Kd7 34.Rc6 Rc8 35.Rxc8 Kxc8 36.g4 Kd7 37.gxh5 Ke7 38.Kg2**.An elegant game by Prasad.**1–0**