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[Event "Arnprior Open"] [Site "?"] [Date "2013.05.04"] [Round "2"] [White "Upper, John"] [Black "Langer, Herb"] [Result "0-1"] [ECO "E94"] [WhiteElo "2251"] [BlackElo "1757"] [Annotator "John Upper"] [PlyCount "130"] [EventDate "2013.05.04"] [EventRounds "5"] [EventCountry "CAN"] [Source "CFC"] [SourceDate "2013.06.05"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 {When I first started to play, I choose the g3 lines against the King's Indian. Back then it seemed to me that the mainline "Mar del Plata" lines, even if objectively favourable for White, were too easy for Black to play. Strategically it seemed like a no-brainer: prep your pawn storm and sac a piece on the White pawn chain. Tactically it also seemed too easy: Black has so little space that there are really very few choices about where to put the pieces, and so even a little familiarity with it goes a long way for Black. I still think that's more-or-less right (perhaps less right for those facing professional-quality opening preparation), but last year I decided to change my White repertoire, and that meant no g3 here.} d6 5. Be2 O-O 6. Nf3 Nbd7 7. O-O e5 8. Be3 Ng4 9. Bg5 f6 10. Bh4 c6 {Diagram [#]} 11. h3 {White has fundamentally different ways to continue: exchange on e5 and play for the d-file (especially the square d6), or d5 followed by Queenside expansion. I spent some time trying to figure out which was best, only to discover at home that they're equally playable. I decided to try d4-d5, and played h3 because with a closed center Black might want to play ...h5 to support the Kingside pawnstorm, and immediatley forcing ...Nh6 stops that.} ( 11. Qc2 Nh6 12. dxe5 dxe5 13. b4 Nf7 14. Rfd1 Qe7 15. c5 Re8 16. Nd2 Nf8 {1/ 2-1/2 (60) Shishkin,V (2507)-Onischuk,V (2349) Kiev 2005}) (11. b4 Qe7 12. dxe5 dxe5 13. c5 Re8 14. Nd2 Nh6 15. Nc4 $14 {1-0 (26) Shirov,A (2705) -Pragua,C (2126) Hamburg simul 2005}) (11. d5 Qe7 12. Ne1 Nh6 13. f3 c5 14. Nb5 g5 15. Bf2 f5 16. Nc7 Rb8 17. Ne6 Rf7 {1/2-1/2 (17) Roiz,M (2200)-Petrosian,D Tallinn 1997}) 11... Nh6 12. d5 c5 13. Ne1 Qb6 14. Nd3 f5 15. f3 f4 16. Rb1 Bf6 17. Bf2 Qd8 {Diagram [#] I think White has a much better version than the regular KID: White has made all the usual prep moves on both sides of the board, and Black is nowhere near to a Kingside attack: the Nh6 prevents ...h5 helping the pawn storm, the Bf6 gets in the way of the Ns. If that's right, then it's no longer the usual KID opposite side race, and White should probably go for a slower Queenside build up -- including the a-pawn or doubling on the b-file -- so that when the break comes, it's a knockout.} 18. b4 b6 19. Nb5 Qe7 20. Nc7 Rb8 21. Ne6 (21. Qa4 $142 cxb4 22. Ne6 $1 (22. Qxa7 $4 Rb7 $19) 22... Nc5 23. Ndxc5 dxc5 24. Nxf8 Kxf8 $16) 21... Re8 22. Qa4 Rb7 23. bxc5 $14 Nxc5 24. Nexc5 bxc5 ({Here I noticed that I'd miscalculated; I thought I might have this line:} 24... dxc5 25. Nxc5 bxc5 26. Bxc5 {overlooking that} Qxc5+ $1 {is check}) 25. Rxb7 Bxb7 {Diagram [#]} 26. Qxa7 $2 {Ironically, now Black gets the active major piece invasion on the Queenside.} (26. Rb1 $142 Bc8 {I didn't see a way to make progress here, but Houdini rates White as better after} 27. Rb8 $1 { when White still has a Queenside initiative.}) 26... Ra8 27. Qb6 Rxa2 $11 { Black had spend a total of 8 minutes up to here.} 28. Nc1 (28. Nxc5 $1 dxc5 29. Bxc5 $44) (28. Rb1 Rxe2 29. Qxb7 Qxb7 30. Rxb7 Rc2 $11) 28... Ra6 29. Qb5 Bc8 30. Nb3 Qd7 31. Rb1 (31. Qxd7 Bxd7 32. Bxc5 dxc5 33. Nxc5 Ra7 34. Rb1 Nf7 $15) 31... Bd8 {After this I had 16 minutes (plus increment) for the rest of the game; Black had an hour and 16 minutes.} 32. Qxd7 Bxd7 {Diagram [#]} 33. Nxc5 $5 (33. Bxc5 $142 dxc5 34. Nxc5 Rb6 $1 {I didn't see a good continuation here, which is why I played 33.Nxc5. Houdini rates it equal after several precise moves from Black:} (34... Rd6 $143 35. Rb8 Nf7 36. Ra8 $1 $36) (34... Bb6 35. Rxb6 $8 Rxb6 36. Nxd7 $16) (34... Ra7) 35. Ra1 Be8 36. Ra8 Nf7 $13 37. Ne6 Rxe6 $22 38. dxe6 Bb6+ 39. Kf1 Nd6 $8 $11 {White might try c5 and Bb5/c4, but it's probably unwinnable.}) 33... dxc5 34. Rb8 Nf7 35. Bxc5 $6 (35. Bh4 $142 Ra1+ ( 35... g5 $2 36. Bxg5 $16) 36. Kh2 Rb1 37. Ra8 Ra1 $1 $14 {Is an amusing deflection, which (of course) I didn't see.}) 35... Kg7 36. Bf2 Ra2 37. Bf1 Kf6 38. c5 Rc2 39. Rb7 (39. c6 {is fine, but gives no winning chances after:} Bxc6 40. dxc6 Rxc6 $11) 39... Ba4 40. Ra7 Be8 41. Ra6+ Ke7 42. Re6+ $138 Kf8 $8 43. Ra6 Rc1 44. c6 $8 {Preventing ...Bb5. now Black's R keeps White's K and one of the Bs out of the game, while White's R and pawns neutralize Black's minors. During the game I didn't see a way for either side to play for a win, though that didn't stop me from trying.} Bc7 45. g3 g5 46. Kg2 $6 Rc2 $1 47. Bd3 Rd2 48. Bf1 Ke7 49. Kg1 Rd1 $6 {pins the wrong B.} (49... Kd6 $142 $15) 50. Bc5+ Nd6 51. Ra7 Kd8 $8 52. gxf4 gxf4 53. Ra8+ Ke7 {Diagram [#]} 54. Rc8 $6 ({More practical, given the time situation, and objectively no worse, is:} 54. Ra7 Kd8 55. Ra8+ Nc8 56. Bf2 {threatens Bh4#} Bd6 $8 57. Bb6+ Bc7 58. Bf2 $11) 54... Bb6 $1 55. Rxe8+ Kxe8 56. Bxb6 Nc4 {Diagram [#]Playing on increment and surprised at how uncoordinated my pieces are, I couldn't find the only saving line.} 57. Bf2 $4 (57. Bc7 $8 $13 Ne3 58. d6 {Black has to play a perpetual. The mainline here assumes both sides play the most uncompromising moves, which leads to quite a pretty finish.} Nxf1 ({the simplest way for Black to force the draw is:} 58... Rxf1+ 59. Kh2 Rf2+ $11) 59. d7+ Ke7 60. Bxe5 ({The simplest way for White to force the draw is:} 60. d8=Q+ Rxd8 61. Bxd8+ Kxd8 $11 ) 60... Ne3+ 61. Kh2 (61. Kf2 Rd2+ 62. Ke1 Rd1+ 63. Ke2 Rd2+ $8 64. Ke1 $8 $11) 61... Rd2+ 62. Kh1 Rc2 63. Bf6+ Kf7 64. d8=Q Rc1+ 65. Kh2 Rc2+ 66. Kg1 Rc1+ 67. Kf2 Rc2+ 68. Ke1 Ng2+ 69. Kd1 Ne3+ $11) 57... Nd2 (57... Ne3 {sets up a promotion net similar to Kramnik-Anand (WCh).} 58. Bxe3 fxe3 59. Kg2 Rd2+ $19) 58. d6 Rxf1+ 59. Kg2 Rxf2+ $8 $19 60. Kxf2 Nc4 61. d7+ Kd8 62. Ke2 Na5 63. Kd3 Nxc6 64. Kc4 Kxd7 65. Kd5 h6 (65... h6 66. h4 h5 $22) 0-1

#9385 by Noname

21:26, June 17, 2013 by Noname

#9384 by Noname

20:01, June 17, 2013 by Noname

#9383 by zzz

18:43, June 17, 2013 by zzz

[Event "Newfoundland Open"] [Site "?"] [Date "2013.04.21"] [Round "5"] [White "Hambleton, Aman"] [Black "Berson, Jordan"] [Result "1-0"] [ECO "D85"] [WhiteElo "2465"] [BlackElo "2017"] [Annotator "MacKinnon,Keith"] [PlyCount "51"] [EventDate "2013.??.??"] [SourceDate "2009.08.18"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 {The Grunfeld is one of the most fashionable openings of late. Theory has extended deep into the middlegame - and, in some cases, the endgame.} 4. cxd5 Nxd5 5. Bd2 {Aman steers away from the typical 5. e4. It is generally wise for the higher-rated player to avoid long theoretical battles.} (5. e4 Nxc3 6. bxc3 Bg7 {is the usual starting point for an opening being played frequently at all levels. Black will play ...c5 and contest the centre, and white will try to maintain his imposing pawns on e4 and d4}) 5... Bg7 6. e4 Nxc3 (6... Nb6 7. Be3 {white looks good as his centre will hold. I am a strong believer in looking at the results from a given position, and they confirm that white scores well here.}) 7. Bxc3 {For me, someone only mildly familiar with the Grunfeld, this is an interesting concept. White denies black his usual idea and opposes the long diagonal.} O-O 8. Qd2 {It appears that white may have some designs on queenside castling, but this is rarely the case. } Nc6 (8... c5 $1 {as played in Dreev-Roiz 2009. Black scored an easy draw in that game} 9. d5 Bxc3 $11 {The position looks strong for black. White appears overextended in the centre} 10. bxc3 (10. Qxc3 e6) 10... Qd6) 9. Ne2 {A conservative approach. It delays any potential fireworks in the centre} (9. Nf3 Bg4 10. d5 Bxf3 11. gxf3 Ne5 12. Be2 c6 {White will be unable to keep his centre intact.} 13. f4 Nd7 14. dxc6 Bxc3 15. Qxc3 Rc8 {and black is at least equal}) 9... b6 10. d5 Ne5 11. Nd4 Bb7 12. f4 Ng4 13. Be2 (13. Rd1 e6 $5 { Black needs to contest the centre or else white’s position will only improve.} 14. dxe6 Bxd4 15. Qxd4 Qxd4 16. Rxd4 fxe6 17. Bc4 Rae8 18. Bb5 $14) 13... Nf6 14. Bf3 {It is not often that you see the bishops on f3 and c3} e6 15. Nc6 { only move. He must have planned to enter the ensuing ending before playing 13. Be2} Bxc6 {While at first glance, it appears necessary to take the knight, black could perhaps have left it there a while longer. It’s possible that a desire to simplify drove this decision} (15... Qd7 {I am left wondering what white’s plan was after this move.} 16. Bxf6 ({perhaps} 16. O-O-O exd5 17. exd5 Bxc6 18. dxc6 Qe6 $13) 16... Bxf6 17. e5 Bxc6 $1 18. dxc6 Qxd2+ 19. Kxd2 Bg7 { Which leads to a roughly equal ending with chances for both players. Black’s immediate idea is to play ...f6}) 16. dxc6 Qxd2+ 17. Kxd2 {Now, white is firmly in the driver’s seat. He has the two bishops and his king is active} Rfd8+ 18. Ke3 Ne8 $2 {A serious mistake. Black now entombs his knight} (18... Kf8 {Why ...Kf8 you may ask? Black needs to improve his knight’s position, and the route to take is via g8-e7!}) 19. e5 Bf8 20. Rhd1 Bc5+ 21. Ke2 h5 {The point being to prevent g4 which would make it impossible for black to activate his knight. But the thing is, without controlling d4, it doesn’t matter if his knight can get to f5} 22. b4 $1 Bf8 23. Rd7 $18 Bg7 24. Rad1 Nd6 (24... Rdc8 25. f5 $1 exf5 (25... gxf5 26. Bxh5) 26. Bd5) 25. exd6 Bxc3 26. Rxd8+ 1-0