Author: Will Singleton
Date: 19:46:57 12/10/02
Go up one level in this thread
On December 10, 2002 at 20:08:21, Laurence Chen wrote:
>Hope this position will help to clarify Space advantage
>
>1. e4 c6 2. Nc3 d5 3. Nf3 g6 4. d4 Bg7 5. h3 a6
>6. Bf4 Nf6 7. e5 Ng8 8. Qd2 b5 9. Be2 h6 10. O-O-O e6
>
>[d]rnbqk1nr/5pb1/p1p1p1pp/1p1pP3/3P1B2/2N2N1P/PPPQBPP1/2KR3R w kq - 0 10
>
>Andy Soltis in his book, "The Art of Defence" comments as follows:
>"It doesn't take long to conclude that White has a very strong game. He has
>developed nearly all his pieces while Black's only developed piece, his king's
>bishop, bites on granite. Black's queenside is full of holes on dark squares
>and he has just locked in his queen's bishop. A quick mating attack is assured,
>you might conclude. And you'd be right!"
>
>What does your chess engine think about this position?
>
>11. g4 Nd7 12. Bg3 Bf8
>13. Rdf1 Nb6 14. Nd1 a5 15. Ne1 b4 16. Nd3 Nc4 17. Qe1 Qb6 18. b3 Qxd4 19. bxc4
>Qa1+ 20. Kd2 dxc4 21. Nf4 Qxa2 22. Ke3 Bb7 23. Qd2 g5 24. Nh5 c3 25. Qd3 Rd8
>26. Qe4 Bc5+ 27. Kf3 Rd4 28. Qe3 Qd5+ 0-1
>Andy Soltis: "Yes, Black delivered the mate. And in less than 20 moves from the
>diagram!"
>
>Below is the complete game.
>
>[Event "Latvian Championship"]
>[Site "."]
>[Date "1961.??.??"]
>[Round "?"]
>[White "Khliavin"]
>[Black "Zhdanov"]
>[Result "0-1"]
>[ECO "B15"]
>[Annotator ""]
>[PlyCount ""]
>[TimeControl ""]
>
>{256MB, Elect2002.ctg} 1. e4 c6 2. Nc3 d5 3. Nf3 g6 4. d4 Bg7 5. h3 a6
>6. Bf4 Nf6 7. e5 Ng8 8. Qd2 b5 9. Be2 h6 10. O-O-O e6 11. g4 Nd7 12. Bg3 Bf8
>13. Rdf1 Nb6 14. Nd1 a5 15. Ne1 b4 16. Nd3 Nc4 17. Qe1 Qb6 18. b3 Qxd4 19. bxc4
>Qa1+ 20. Kd2 dxc4 21. Nf4 Qxa2 22. Ke3 Bb7 23. Qd2 g5 24. Nh5 c3 25. Qd3 Rd8
>26. Qe4 Bc5+ 27. Kf3 Rd4 28. Qe3 Qd5+ 0-1
>
>Here Black chooses to under-develop his pieces, and move some of his pieces back
>to its original squares, and several times. This gave White a huge space
>advantage, but such advantage was not good at all. Why? Because the pieces
>which White had developed did not meet the demands of the pawn structure.
>Hence, the space advantage was useless, it had no value. White's developed
>pieces are unable to take advantage of his space advantage, therefore, White has
>to loose Time re-developing his pieces. What good is to have an advantage which
>cannot be exploited? Just because one has space advantage does not translate
>into a winning advantage. Because Black pieces are back to its original
>squares, Black is able to regroup and put his pieces in squares which are more
>useful. Hope this position helps demystifying some ideas about Space as an
>advantage. Look at the Modern Defence as an example where Black chooses
>deliberately to have a space disavantage and allow White to build a huge space
>advantage. These games are see-saw battles where White tries to mantain his
>space advantage and Black tries to destroy it. See Gruenfeld Defence, too.
>
>Regards,
>
>Laurence
Here's what my program thinks (it doesn't know anything about space).
[Event "Computer chess game"]
[Site "MICRON amd 1.6ghz"]
[Date "2002.12.10"]
[Round "-"]
[White "Amateur 2.4"]
[Black "Crafty-19.1"]
[Result "1-0"]
[TimeControl "40/600"]
[FEN "rnbqk1nr/5pb1/p1p1p1pp/1p1pP3/3P1B2/2N2N1P/PPPQBPP1/2KR3R w kq - 0 1"]
[SetUp "1"]
{--------------
r n b q k . n r
. . . . . p b .
p . p . p . p p
. p . p P . . .
. . . P . B . .
. . N . . N . P
P P P Q B P P .
. . K R . . . R
white to play
--------------}
1. h4 Nd7 2. h5 g5 3. Be3 Nb6 4. Nh2 a5 5. Bd3 Bf8 6. f4 b4 7. Ne2 Nc4 8.
Bxc4 gxf4 9. Bxf4 dxc4 10. g4 a4 11. g5 a3 12. b3 c3 13. Qe3 Ba6 14. Ng3
Ne7 15. Qf3 Nd5 16. Ne4 Qd7 17. Ng4 O-O-O 18. Nxh6 Bb5 19. Nd6+ Bxd6 20.
exd6 Nxf4 21. Qxf4 Rhf8 22. Qf6 Qe8 23. Qe7 Rd7 24. Qxe8+ Rxe8 25. g6 fxg6
26. hxg6 Rg7 27. Nf7 Reg8 28. Ne5 Rd7 29. Nxd7 Kxd7 30. Rdg1 Kxd6 31. Rh7
Be2 32. Rb7 Bf3 33. g7 c5 34. Rf7 Bd5 35. Rg6 cxd4 36. Rf8 Rxg7 37. Rxg7
Be4 38. Rb8 Kc5 39. Rc7+ Kd6 40. Ra7 Bf3 41. Rxb4 Ke5 42. Rxa3 Ke4 43. Ra5
Be2 44. Rc5 e5 45. a4 Kf4 46. Rxc3 Kf5 47. Rd3 Ke6 48. a5 Kd5 49. a6 Kc5
50. a7 Kxb4 51. Rg3 Kc5 52. a8=Q Bh5 53. Rg5 Bf7 54. Qa7+ Kb5 55. Rxe5+ Kc6
56. Qc5+ Kb7 57. Re7+ Kb8 58. Rxf7 d3 59. Qf8#
{White mates} 1-0
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