1988-01-29 - Mordue, Tyson 1-0 Jarrett, D
n a Ruy Lopez, Bogolyubov variation, Tyson quickly establishes an advantage. Jarrett tries to break out but leaves Tyson dominating the open lines. More forcing on Black's part leaves White with a passed Pawn on b6, and defending against this intruder leaves the Black army vulnerable to a host of Knight forks.
[Event "BRISTOL LEAGUE CONGRESS"] [Site "?"] [Date "1988.01.29"] [Round "1"] [White "Mordue, Tyson"] [Black "Jarrett, D"] [Result "1-0"] [ECO "C91"] [Annotator "Mordue,Tyson"] [PlyCount "73"] [EventDate "1988.??.??"] {Originally annotated by Alex Easton (AE) in BCT Issue 71, May 1988.} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 {"A common way of avoiding the Marshall Attack (8 c3 d5) - also common is 8 a4." AE } d6 9. c3 Bg4 10. Be3 Qb8 {"I really don't understand this. ...Qb8 is a normal reaction to White's a2-a4 but here it doesn't seem to fit into any sheme. Usual is 10...exd4 11 cxd4 Na5 12 Bc2 and now either 12...Nc4 or 12... c5 with an equal game." AE. This is quite an unusual move. It only appears three times on the database. Contrary to Alex's remark about this being a reaction to a2-a4 this is actually extra support for e5 in the event, as Black actually does, of Black playing ...Nc6-a5 and ...c7-c5. There is an analogous appearance in Fischer-Spassky, 10th match game 1972, but the difference here is that the f3 Knight is currently pinned by the g4 Bishop so e5 is not under threat. However, if White plays h2-h3 then should Black reply ...Bg4-h5 then the first player has the option of unpinning with g2-g4. Alternatively Black could play ...Bg4xf3 but this is giving up the two Bishops for no good reason.} 11. Nbd2 Na5 12. Bc2 c5 {Alex gave this an ? and wrote "I'm sure this is wrong. Black now becomes very static on the Queenside and White's centre looks strong. Also Black will have problems finding a good square for his Knight on a5." 12.. .c5 looks okay to me and, as outlined above, is consistent. Nogueiras Santiago (2555) vs. Granda Zuniga (2525), Havana 1987 went 12...Nd7 13.h3 Bh5 14.Nf1 Nc4 15.Bc1 exd4 16.cxd4 Bg6 17.b3 Ncb6 18.Bf4 Qb7 19.Ng3 Rfe8 20.d5 Bf6 21.Rc1 Nc5 22.Re3 b4 23.h4 h6 24.h5 Bh7 25.Nd4 with an advantage for White, 1-0 in 47 moves.} 13. d5 Nd7 {Fishbein (2460) vs. Fyllingen, Stavanger 1991, continued 13...c4 14.Nf1 Qc7 15.h3 Bd7 16.g4 Ne8 17.Ng3 g6 18.Kh2 Kh8 19.Nd2 Rb8 20.f4 exf4 21.Bxf4 Bf6 22.Nf3 Bg7 23.e5 Nb7 24.Qd2 dxe5 25.Nxe5 Ned6 26. Re2 f6 27. Nxd7 Qxd7 28.Rae1 Rbe8 29.Re6 a5 30.Qe3 Qd8 31.Ne4 Nxe4 32.Bxe4 Qd7 33.Bg2 Rxe6 34.dxe6 Qc8 35.Qb6 Nc5 36.e7 Re8 37.Qc6 1-0. Certainly 13...c4 is more challenging. There is a possibility of Black dropping his offside Knight into d3 via b7 and c5, and if White should play either b2-b3 or b2-b4 Black has the chance to take (en passant if necessary) and play on the Queenside. In the game the point of my reply of 14 b3 is to anticipate ... c5-c4, and to go past with b3-b4 so Black can't play en passant. This will deny Black access to the c5 square.} 14. b3 {"14 b4 also looks tempting." AE. After 14 b4 cxb4 15 cxb4 Nc4 16 Nxc4 bxc4 17 Rb1 is a standard Lopez continuation, except there's normally a White Pawn on h3 and the Black Bishop is on c8. The current situation is probably slightly more in Black's favour, although that's a moot point because the alternative is 14 h3 and play on the Kingside as Fishbein did above. The whole point of the opening line is the discussion over whether Black's Bishop is a help or a hinderance on the Kingside. It usually doesn't do anything for the Queenside defence and in this game it definitely doesn't. Indeed had it been on b7 White's final move would not be legal!} Nb6 15. Nf1 {Now 15...c4? 16 b4 wins a piece - 16...Nb7 17 Bxb6 - while 15...b4 16 c4 followed by a2-a3 gives White an edge on the Queenside. With his Queenside stuck Jarrett decides to play on the Kingside.} f5 16. exf5 Qb7 {"16...Bxf5 17 Bxf5 Rxf5 18 Ng3 is awful for Black." AE. White certainly has a plus because of his undisputed control of e4 and Black's dislocated Knights. Deep Rybka has White at +0.56. Jarrett targets the d5 Pawn now that he has deflected the defending Pawn from e4.} 17. Ng3 {"17 c4! and if 17...bxc4? 18 Bd2 (or 18 Qd2) looks like it wins a piece for little compensation." AE. 17 c4 does give good support to the d5 Pawn and, obviously, 17...bxc4 does not have to be played. Instead we can go back to 17.. .Bxf5 18 Bxf5 Rxf5 19 Ng3 etc. tjis time with the engine giving White a plus of 0.75. The reason why I chose the text is the obvious one - I thought it was even better than 17 c4. To regain his Pawn Black has to open the h1-a8 diagonal and the d-file, both of which I promptly occupy. Also Black's g4 Bishop is in trouble and his Knights look offside. In two moves time Deep Rybka says White has a plus of nearly 1 so I feel my approach is justified. Several years ago during a game in Derby my reasonably-experienced opponent played an optically impressive move 16 Qe1-a5. Calm analysis showed that there was a sensible move which probably gave me a clear plus. After some ten minutes or so I played another move, a capture with 16...Bxf3, to which my opponent quickly made the obvious recapture 17 Rxf3. I made my reply and my opponent sat there or ten minutes in turn, completely stunned. My move won immediately and he conceded without reply. Afterwards he remarked "When I played 16 Qa5 I was expecting the 'sensible move' in reply." I said "I know, but 16...Bxf3 is actually stronger so alarm bells should have been ringing. You should have played 17 gxf3 (wrecking his Kingside Pawns) when I'm still much better." So the moral is clear. If a strong player turns down a strong-looking move then it's highly likely that he thinks the move he is playing is even better!} Qxd5 {Clearly 17...Nxd5?? 18 Be4 costs at least an Exchange after 18...Nxe3 19 Rxe3.} 18. Be4 Qxd1 19. Raxd1 Rad8 20. b4 $6 { Probably better is 20 h3 Bxf3 21 Bxf3 because 21...d5? can now be answered by 22 b4. As per Alex's remark in the next note maybe this position after 21 Bxf3 is "unbalanced and obscure" but I think White is better.} Nac4 21. bxc5 d5 $2 { "Tyson refutes this with his customary energy. After 21...dxc5 the position is unbalanced and obscure, but I feel White has some pull due to the exopsed position of the Bishop on g4 and Black's looser Pawn structure. However, I could find no way to take big advantage of this." AE. It seems that 21... dxc5 is the best way to play the position. Jarrett is trying for more but it backfires.} 22. cxb6 dxe4 23. Rxd8 Rxd8 {"23...Bxd8 is an improvement." AE. Deep Rybka says that 23...Bxd8 is refuted by 24 b7! Ba5 25 Ng5! when White threatens to trap the g4 BIshop and also to play 26 Ba7 Bc7 27 Ne6 winning material.} 24. Bg5 exf3 {If 24...Nxg5 25 Nxg5 g6 26 fxg6 hxg6 27 N3xe4 is very similar to the game with Knight forks everywhere. The b6 Pawn looks vulnerable but it is defended by a lot of tactics.} 25. Bxe7 Rd7 26. Bc5 fxg2 {The immediate 27...g6 may be a small improvement. After the text White has no back rank concerns.} 27. Kxg2 {"Black is given no breathing space. His next move looks forced due to the threat of 28 f2-f3 or 28 h2-h3 and threats with the b-Pawn and a crop of Knight forks finish it quickly." AE. Deep Rybka has White at an impressive +1.78. The opposite-coloured Bishops do not display drawing tendencies, indeed White's is very strong while Black's is in danger of being trapped.} g6 28. Ne4 {Objectively 28 fxg6 fxg6 29 Ne4 is stronger but the reason for doing it this way around will become apparent.} Kf7 29. fxg6+ Kxg6 { A natural reply now but it falls into a trap.} 30. f3 Be6 31. Bf2 {Threatening a very awkward 32 Nc5. Short of time Jarrett played the obvious move.} Rb7 32. Rd1 $1 {And now the point of White's reversal of moves 28 and 29 becomes clear. 32...Nxb6? loses a piece after 33 Rd6 because the Bishop is loose. So White now has his Rook on the open d-file while Black is short on time, moves and ideas.} Kf5 $2 {32...Rb8 preventing White's next is more circumspect. The King is very vulnerable here.} 33. Rd8 {Suddenly there's a threat of 34 Rf8+ Kg6 35 Rf6+ winning the Bishop. Black should just retreat 34. ..Kg6.} Bf7 {[%emt 0:00: 00]} 34. Rd6 $1 {Now the threat is 35 Rf6 mate and if 35...Nxd6 36 Nxd6+ wins at least a piece.} Be6 35. Rxe6 $1 Rg7+ 36. Kh1 Kxe6 37. b7 {If 37...Rxb7 38 Nc5+ or 37...Rg8 38 Ba7 both emerge a piece up. "Typical of what happens when you let Tyson take a run at you." AE} 1-0
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