[blind-chess] Re: Annotated Game #150 - Rod Macdonald - Joachim Ebisch, DESC 2013
- From: Rebecca Blaevoet <amrywoddyddiauheulog@xxxxxxxxx>
- To: "blind-chess@xxxxxxxxxxxxx" <blind-chess@xxxxxxxxxxxxx>
- Date: Mon, 1 Jul 2013 18:28:19 -0400
Well done Paul
Rebecca Blaevoet
Sent from my iPhone
On 2013-06-30, at 9:01 PM, "Paul Benson" <paul.benson@xxxxxxxxxxxxxxx> wrote:
> Annotated Game #150:
>
> German Email Chess Club (DESC) Team Championship 2013
> Round 1, Group 6
> DESC-2 - CJPR-1, Board 4
> White: Rod Macdonald (USA, CJPR-1)
> Black: Joachim Ebisch (Germany, DESC-2)
> Result: 1/2-1/2
> ECO: C64 - Ruy Lopez Opening, Classical Defense
> Time Control: 10 moves in 30 days for each player
> Notes by R.J. Macdonald with supplementary comments by P.J. Benson
>
> 1. e4 e5
> 2. Nf3 Nc6
> 3. Bb5
>
> (The Ruy Lopez Opening.)
>
> 3. ... Bc5
>
> (This is the Classical Defense. Far more common is 3. ... a6, the Morphy
> Variation.)
>
> 4. 0-0 Qf6
>
> (4. ... Nd4 5. b4 is the Zaitsev Variation. Alternatively, after 5. Nxd4 exd4
> 6. b4 Bb6 7. Na3 Ne7 8. Nc4 0-0 9. Nxb6 axb6 10. Bb2 d5 11. Qf3 Qd6 12. a3 c5
> 13. Rae1 white has a slight advantage.)
>
> 5. Nc3 Nge7
>
> (5. ... a6 6. Nd5 Qd8 7. Ba4 Nge7 8. Nxe5 Nxe5 9. d4 Nxd5 10. exd5 Qh4 11. c3
> b5 12. Bc2 Ng4 13. h3 Bd6 is strong for white.)
>
> 6. Nd5 Nxd5
> 7. exd5 Ne7
> 8. d4
>
> (Alternatives for white include (a) 8. Re1 0-0 9. Rxe5 d6 10. Re1 Bg4 11. d4
> Bxf3 12. Qxf3 Bxd4 13. Qxf6 Bxf6 14. Bc4 Rab8 15. g4 Rfe8, and (b) 8. Qe1 a6
> 9. Bc4 h6 10. Qxe5 Qxe5 11. Nxe5 b5 12. Bb3 f6 13. Nf3 Bb7 14. Re1 Kd8 15. d4
> Bd6 16. g3 Bxd5. In both cases white retains a slight advantage.)
>
> 8. ... exd4
> 9. Bg5
>
> (White is in no hurry to regain the black pawn on d4. It will be left alone
> for a while, restricting the activity of the black dark square bishop as the
> middlegame proceeds.)
>
> Key Move Diagram:
> r1b1k2r/
> ppppnppp/
> 5q2/
> 1BbP2B1/
> 3p4/
> 5N2/
> PPP2PPP/
> R2Q1RK1
> Position after white's 9th move.
>
> 9. ... Qb6
>
> (Better is 9. ... Qd6 10. Bxe7 Kxe7 11. Re1+ Kf8 12. Qd2 a6 13. Bd3 b6 14. a3
> a5 15. Bc4 Bb7 16. Nxd4 Qh6 17. Re3 Re8 18.Rae1, with a slight advantage for
> white.)
>
> 10. Bxe7
>
> (10. Qe2 f6 11. Bd2 O-O 12. b4 Bd6 13. a4 c6 14. dxc6 dxc6 15. Bc4+ Kh8 16.
> a5 Qd8 17. Nxd4 Ng6 18. Qh5 Bxh2+ 19. Qxh2 Qxd4 20. Bd3 Qe5 21. g3 Bf5 22.
> Bc3 Qd5 23. Rad1 Bxd3 24. Rxd3 Qf5 1-0 in 53 moves, as in the game O.
> Grigoryeva (1980) - E. Polosin (1907), Cheliabinsk 2009.)
>
> 10. ... Kxe7
>
> (10. ... Bxe7 11. Nxd4 O-O 12. Nf5 Bf6 13. Bd3 Qxb2 14. Qf3 Qa3 15. Nh6+ Kh8
> 16. Qf5 Qxd3 17. cxd3 Bxa1 18. Rxa1 gxh6 19. Qf6+ Kg8 20. Re1 d6 21. Re3 1-0
> in 120 moves, as in the game J. Simo (2033) - B. Huang, Stillwater 2007.)
>
> Key Move Diagram:
> r1b4r/
> ppppkppp/
> 1q6/
> 1BbP4/
> 3p4/
> 5N2/
> PPP2PPP/
> R2Q1RK1
> Position after black's 10th move.
>
> 11. Ng5!
>
> (Calmly leaving the white bishop on b5 en prise. This must have been quite a
> surprise for black.)
>
> 11. ... Qg6
>
> (This is black's best choice, though it leaves white with a strong position.
> 11. ... g6 12. Qf3 f5 13. Qf4 Bd6 14. Qh4 Kf6 15. Ne4+ Kf7 16. Qf6+ Kg8 17.
> Nxd6 Qxd6 18. Qxd4 b6 19. Rfe1 Bb7 20. Bc4 h6 21. Re5 Rh7 22. Rae1 Rf7 is
> quite strong for white. Of course, taking the bishop on b5 wouldn't do
> because of 12. Re1+, with mate to follow after either 12. ... Kf6 13. Qf3+
> Kg6 14. g4, or 12. ... Kf8 13. Qh5.)
>
> 12. Qd2
>
> (12. Ne4 Bb6 (12. ... Qxe4? 13. Re1 Qxe1+ 14. Qxe1+ Kd8 15. Qe4 is very
> strong for white) 13. Re1 Kd8 gives white a solid advantage.)
>
> 12. ... Kd8
>
> (12. ... Kf8 13. Rae1 h6 14. Ne4 is very strong for white.)
>
> 13. Rfe1
>
> (So white is still a pawn down. The white compensation is a lead in
> development combined with the black king having no obvious safe location for
> a while to come.)
>
> 13. ... h6
>
> (Also worth a try is 13. ... f5 14. Nf3 Qf6 15. Ba4 c6 16. dxc6 bxc6 17. Re5
> Bd6 18. Re2 Rb8 19. Nxd4 Ba6 20. Ree1, with a solid advantage for white.)
>
> 14. Ne4 Bb6
>
> Key Move Diagram:
> r1bk3r/
> pppp1pp1/
> 1b4qp/
> 1B1P4/
> 3pN3/
> 8/
> PPPQ1PPP/
> R3R1K1
> Position after black's 14th move.
>
> 15. Re2
>
> (Preparing to double rooks down the fully open file. However 15. d6!? cxd6
> 16. Qf4 gives white a solid advantage as the development of the black
> queenside will be a tortuous task.)
>
> 15. ... d6
>
> (This Consolidates c5. White now has a slight edge.)
>
> 16. Rae1 a6
> 17. Bd3 Qh5
>
> (Black threatens to win material: Qh5xd5.)
>
>
>
> 18. Qf4 Bd7
>
> (If 18. ... Qxd5 19. Nf6 with a Double attack: h8/d8. OR IF 19. ... Qc6 20.
> Qg3 WITH A VERY STRONG ADVANTAGE FOR WHITE.)
>
> 19. Qg3
>
> (White threatens to win material: Qg3xg7. 19. Nf6!? Qg5 20. Qxg5 hxg5 21.
> Nxd7 gives white a slight advantage.)
>
> 19. ... Qg4
>
> (This gives black equality. In order to maintain the initiative, white must
> resort to desperate measures. So, what can white do to make life difficult
> for black?)
>
> 20. Nxd6!
>
> (Bravely played. The full ramifications of this positional piece sacrifice
> are not easy to calculate. White will keep the initiative for some time, the
> uncoordinated black forces will find unravelling a most uncomfortable
> process.)
>
> 20. ... cxd6
>
> (Declining with 20. ... Qxg3 21. Nxf7+ Kc8 22. hxg3 leaves white a pawn up
> with black still being behind in development.)
>
> 21. Qxd6
>
> (Black has won a piece for a pawn, but his king is in a very open center.)
>
> 21. ... Bc7
>
> (Black threatens to win material: Bc7xd6.)
>
> 22. Qe7+
>
> (White attacks both the black king on d8 and the black pawn on f7.)
>
> 22. ... Kc8
> 23. d6!
>
> (An important pawn advance to take control of dark squares, and also with
> gain of tempo on the bishop. The black king must be kept restricted while the
> white forces regroup for the attack.)
>
> 23. ... Ba5
>
> (Black threatens to win material: Ba5xe1.)
>
> Key Move Diagram:
> r1k4r/
> 1p1bQpp1/
> p2P3p/
> b7/
> 3p2q1/
> 3B4/
> PPP1RPPP/
> 4R1K1
> Position after black's 23rd move.
>
> 24. b4!
>
> (Offering a pawn for an open line to assist the attack on the queenside.)
>
> 24. ... Bd8
>
> (Black threatens to win material: Bd8xe7. Less advisable is 24. ... Bxb4 25.
> Rb1 a5 26. a3 with a solid advantage for white.)
>
> 25. Qxf7 Qg5
> 26. Re5
>
> (White threatens to win material: Re5xg5. This rook is now ready to swing
> over to the queenside.)
>
> 26. ... Qf6
>
> (Black wishes to trade queens to relieve some of the pressure. White must not
> permit this.)
>
> Key Move Diagram:
> r1kb3r/
> 1p1b1Qp1/
> p2P1q1p/
> 4R3/
> 1P1p4/
> 3B4/
> P1P2PPP/
> 4R1K1
> Position after black's 26th move.
>
> 27. Rc5+
>
> (27. Qc4+!? Kb8 28. Qxd4 offers equal chances.)
>
> 27. ... Bc6
>
> (Both sides have equal chances now, but white has more pieces to throw into
> the attack...)
>
> 28. Qc4 Kb8
>
> (28. ... Qxd6?? (the pawn must remain untouched) 29. Re6 Qc7 30. Rexc6 bxc6
> 31. Rxc6 would be decisive for white.)
>
> Key Move Diagram:
> rk1b3r/
> 1p4p1/
> p1bP1q1p/
> 2R5/
> 1PQp4/
> 3B4/
> P1P2PPP/
> 4R1K1
> Position after black's 28th move.
>
> 29. Rxc6!?
>
> (Here we go again... White is now going to be a rook down for 3 pawns.
> However, the presence of opposite colour bishops means the white light square
> bishop is virtually unchallengeable, and at some point black must seriously
> consider returning an exchange to eliminate the white bishop.)
>
> 29. ... bxc6
> 30. Qxc6 Rf8
>
> (The headlines read: "Move 30 - black develops a rook at last".)
>
> 31. f3 Ra7
>
> (Having enjoyed developing one rook, black now clearly has a taste for it.)
>
> 32. Bxa6 Qf5
>
> (The only way for black to defend the threatened mate on c8 which does not
> immediately lose material.)
>
> 33. Re5!?
>
> (Trying to deflect the black queen away from the defence of c8. The white
> activity is now too much for black to ignore, material must be returned to
> dissipate the attack.)
>
> 33. ... Rxa6!
>
> (Avoiding 33. ... Qxe5 34. Qc8#.)
>
> 34. Qb5+
>
> (34. Rb5+ Rb6 35. Rxb6+ Bxb6 36. Qxb6+ Ka8 37. Qa6+ Kb8 38. Qb6+ Ka8 39. Qa6+
> Kb8 40. Qb6+ is a draw by 3 fold repetition.)
>
> 34. ... Rb6
> 35. Rxf5 Rxb5
> 36. Rxb5+ Kc8
>
> (For the first time in the game white has a material advantage, 4 pawns for a
> bishop. However, the pawn on d6 which was previously considered strong when
> white was attacking, is now weak as it will be difficult to defend from a
> combined attack by the black king and rook.)
>
> 37. a4
>
> (37. Kf1 Bf6 achieves equality.)
>
> 37. ... Rf6
>
> (Black threatens to win material: Rf6xd6. 37. ... Kd7 38. a5 Kxd6 39. Kf2
> also leads to equality.)
>
> 38. Rd5
>
> (White threatens to win material: Rd5xd4.)
>
> 38. ... Kd7
> 39. Kf1
>
> (At this point white offered a draw, which black declined. 39. Rxd4?? would
> lead to disaster after 39. ... Bb6 40. c3 Rxd6 with a very strong advantage
> for black.)
>
> 39. ... Rxd6
> 40. Rxd6+ Kxd6
>
> (Material equality is re-established, white having 3 pawns for the black
> bishop. Black now has chances to place some pressure on white.)
>
> 41. Ke2 Kd5
> 42. Kd3 Be7
>
> (42. ... Bc7 43. g3 Bd6 44. c4+ dxc3 45. Kxc3 Be5+ 46. Kd3 Bd6 47. Kc3 and
> black might be advised to head for repetition of the position.)
>
> 43. c4+ dxc3
> 44. Kxc3
>
> (With the elimination of the black d4 pawn, the white king now has the
> freedom to wander wherever it pleases.)
>
> 44. ... Bd6
> 45. g3
>
> (This controls f4.)
>
> 45. ... Be5+
> 46. Kb3 Bd4
> 47. a5
>
> (This push gains space and forces black to maintain forces on the queenside.)
>
> 47. ... Bf2
>
> (47. ... Bg1 48. h3 Bf2 49. g4 g5 50. Kc3 Be1+ 51. Kb3 should lead to a draw
> with correct play.)
>
> 48. a6
>
> (A strong pawn. 48. Kc3 Be1+ 49. Kb3 Bf2 should lead to a draw with correct
> play.)
>
> 48. ... Kc6
>
> (If black is to make progress, then the white queenside pawns must be
> eliminated. This in turn, will give the white king the opportunity to head
> back to the kingside, in order to eliminate the remaining black pawns. Ah,
> has anyone noticed a little problem awaiting black over on the kingside?)
>
> 49. Kc4 Kb6
> 50. b5 h5
> 51. g4 hxg4
>
> (Instead 51. ... h4 52. h3 will then leave white with simple job of trading
> off the black g7 pawn, and the previously hinted black kingside problem has
> arisen.)
>
> 52. fxg4 g5
>
> Key Move Diagram:
> 8/
> 8/
> Pk6/
> 1P4p1/
> 2K3P1/
> 8/
> 5b1P/
> 8
> Position after black's 52nd move.
>
> 53. Kd3
>
> (This loses material, but enables white to draw the game. other drawing lines
> include: (a) 53. h3 Bg1 54. Kb4 Bc5+ 55. Kc4; (b) 53. Kb4 Bc5+ 54. Kc4 Bf2;
> (c) 53. Kd5 Kxb5 54. h4 gxh4 55. a7 Bxa7; (d) 53. Kc3 Kxb5 54. h4 gxh4 55. g5
> Ba7 56. g6 h3 57. g7 h2 58. g8Q h1Q 59. Qc4+ Kb6 60. Qe6+ Kb5.)
>
> 53. ... Kxb5
> 54. h4 gxh4
>
> (White wins after 54. ... Bxh4 55. a7 and the pawn promotes. Now black is
> left with a rook's pawn and a bishop which is of the opposite colour to that
> of the potential promotion square, often referred to as "the impotent pair",
> as providing the defending king can sit on the promotion square, then a draw
> will result.)
>
> 55. Ke2 Bc5
> 56. Kf3 Kxa6
> 57. g5 Be7
> 58. g6
>
> (Black has to watch this pawn.)
>
> 58. ... Bf6
> 59. Kg4 Bg7
> 60. Kxh4 Kb6
>
> (Yes, black does not have sufficient material to force checkmate. Black has
> been refusing offers of a draw for some time now, and as emails cost nothing,
> why stop here?)
>
> 61. Kg5 Kc6
> 62. Kf5 Kd5
> 63. Kf4 Ke6
> 1/2-1/2
> áy¹b×!zË&j)b b²Õb{ b²Ø§~æjب©Ýr§ì¨º» ¶Ø§Èm¶ÿÃ
> ç¥Ël¢¸?+-ý¹b×!zË ËZÈb½ë!¶Úÿ 0~·+-²àýªÜ+Þ³öåw\
> ë,
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