|Feb-01-15|| ||tpstar: I just found this position in "The Complete Chessplayer" by Fred Reinfeld, without a game citation (per his usual). His comments from Chapter 6 = "Strategy In the Middle Game," translating descriptive to algebraic:|
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THE OVERWHELMING PAWN CENTER
"When a player is able to set up his two center Pawns abreast on the fourth rank, he assures himself of an excellent development for his pieces. Most players are aware of this. What is less well known is that this type of Pawn center has a very hampering effect on the opponent's development.
In Diagram 187, for example, White's overwhelming Pawn center makes it impossible for any Black pieces to move to [f5], [d5] or [c5]. It is no coincidence that Black's pieces are huddled together on the last three ranks. The present lack of mobility is not quite conclusive; but what makes Black's cramped position catastrophic is that there is no prospect of *future* freedom.
White's position is free and comfortable. His Bishop on [b3] has a particularly effective diagonal pointing down to Black's vulnerable spot [f7]. Nor can Black drive away the Bishop with [... Na5] (because of RxN); while [... Be6] is equally impossible (because of [d4-d5]). White's freedom of action, as contrasted with Black's crabbed immobility, is based on the Pawn formation: White's Pawn center tells the story.
How is White to proceed; what is his plan? The process is pretty much the same as the endgame phase: White increases his mobility, seeks new lines, tries to cut down Black's sphere of action more and more. The logical plan for White is to direct more pressure on the center, leading to the opening of a new line. The indicated move for this purpose is [f4]. So White proceeds (from Diagram 187):
18. Ng1 <In order to make way for the [f Pawn].> g5 <With this desperate move he prevents [f4] - but only for the time being. At the same time, [... g5] has weakened the Black King's position and deprived his Knight on [f6] of valuable Pawn support. This is an instructive moment, very typical of such positions. The player with greater freedom threatens to seize even more terrain. The underdog tries to prevent him, but only at the cost of creating an organic weakness in his position.> 19. g3! <White is stubborn. He will advance the [f] Pawn after all.> Bf8 20. f4! gxf4 21. gxf4 exf4 22. Bxf4 Nd8 <White's plans have worked out admirably. His position has become much freer, the opened [f] file beckons for occupation, and Black's King has forfeited much of his security with the departure of the [g] Pawn.> 23. Rf1 Ne6 24. Be3! <The simplest way.> Bg7 25. Rf2 Nh7 26. Raf1 <The relentless pressure accumulates on the [f] file. Black's pieces are still a jumbled mess.> Re7 27. Qd1 Qf8 28. Ngf3 Be8 29. Nh4! <Absolutely decisive, the threat being [Ng6] (fork plus pin!), winning the exchange, or the Queen for a Rook and Knight. Baffled by these troubles, Black commits a fearful blunder. This, by the way, is very common in bad positions. The difficulties, purely technical though they may be, seem to have a definite effect on a player's spirits, and this makes him prone to blunder,> Neg5?? <By further opening up the diagonal of White's Bishop on [b3], Black makes [30 ... fxg6] physically impossible in reply to White's next move.> 30. Ng6! <As Black's [f] Pawn is pinned, he must suffer ruinous loss of material. A very convincing example of the power of an overwhelming center.>"
Thank you Mr. Reinfeld. =)