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Saturday, September 3, 2011

Middle Game Strategy Part 16

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Black to Play
P. Biyiasas -- Silman 
Berkeley 1983


White has two Bishops but not active. If White plays c4
white's a3 pawn may become passed.   g4 is the best suppot point for Black's
Knight to put pressure on White Knight on e3.  White has a3 s the backword
pawn but well defended.  White can also play d5 to put extra pressure on e4
square.} 1... Ng4  Nf5 $2 {( It's a blunder Better is} (2. Nxg4 Bxg4 3. a4
Rxa4 4. Rxa4 bxa4 5. Qxa4 Ra8 6. Qc2 Qc6 7. Be3 Qc4) 2... Nxf5 3. exf5 Bd5 4.
Bxd5 Qxd5 5. Qe2 Nf6 6. Bb2 Ne4 {(Black hastens to dominate the c4 square,
which will lead to a crushing Knight versus bad Bishop situation. )} 7. Rfd1
Qc6 8. Rd3 {(White Bishop is hanging which is vulnerable to attack.)} d5 9.
Rad1 Qc4 10. Kg2 c6 {(White is completely lost.)} 11. h5
11. g4 Nd6 12. h5 Qb3 13. Ra1 Nc4 14. Bc1 f6 15. Qd1) ({Crafty 19.01: 3)} 11.
Kg1 Nd6)  11. Rh1 Nd6 12. Rd2 Qb3 13. Qd1 Qxd1 14. Rhxd1 Nc4
15. Re2 Nxb2 16. Rxb2 Rxa3) 11... Nd6 12. g4 Qb3 13. Ra1 Nc4 14. Bc1 f6 15. Qd1

Black to Play
Alden -- Lars Nilsson
Sweedish League 1972


Even though White's postion is good its back rank is too weak.
*Black Rook on d8 and Queen on e4 are ready to exploit the position.    *The
f1 square is strongly defended by White to protect its king from back rank
weakness.    Black's strategy would be to deflect or remove one of these two
defending pieces to exploit the back rank weakness.} 1... Qc6 {With a double
attack winning the rook or if the queen is captured, mating.} 2. Kg1 (2. Qxc6
Rd1+ 3. Rf1 Rxf1#) (2. Bd5 Qxf6 3. Qxf6 gxf6 4. Bf3 e4 5. Bg4 f5 6. Bh5 e3)
2... Qxf6 3. Qxf6 gxf6 4. Kf2 Kg7 5. Be6 Kg6 6. g4 Rd2+ 7. Kg3 e4 8. h3 *

White to play
Short -- Karpov
Linaras Math 1992

{Black has an isolated pawn on a6 guarded by Knight on b4.  It also has a
backward pawn on c7  Black's d5 pawn is also haveing insufficient support.  c6
is the weak square and defended by Knight on b4.  The Black Knight on b4 seems
to be well placed in view of Back therefore, Black should have a strategy to
deflect it. so that a6, c6 and d5 will become weak.} 1. Na2 {White plays Na2
to get rid off Black Bishop on b4.} c5 2. dxc5 Nxc5 3. Nxb4 Rxb4 4. Bc6 Qb6 5.
Bxd5 Rxb2 6. Qc4 Rc2 7. Qg4 Qc7 8. Nd4 Rc3 9. Nc6 Re8 10. Bd4 Rc2 11. Nb4 0-1

Exploiting Open Lines

Middle game strategy Part 15

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