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Monday, May 14, 2012

Winning chess tactics.

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(1) Pawns Square.

[chessfunda.com]


XABCDEFGHY
8-+-+-+-+(
7+-+-+-+-'
6-+-+-+-+&
5zP-+-+k+-%
4-+-+-+-+$
3+-+-+-+-#
2-+-+-+-+"
1+-+K+-+-!
xabcdefghy

It's a Whites move and obviously white will move its pawn to
a6. Because he has guarantee that the Black King would not
catch him. can you guess How White can give such a
guarantee?  For which he will draw a Pawns square such that
the pawn will be on one of the vertex. The square will be
a5d5d8a8.   The king is placed ouside this square and
therefore the king cannot catch the pawn.  1.a6 Ke5 King
knows that he cannot catch the pawn then he should move
the King towards the Centre. His king cann't be checkmated
usless he's actually on the edge of the board somewhere.


(2) Zugzwang



XABCDEFGHY
8-+-+-+-+(
7+-+-+-+-'
6-+-+-mK-+&
5+-+-+LsnP%
4-+-+-mk-+$
3+-+-+-+-#
2-+-+-+-+"
1+-+-+-+-!
xabcdefghy

This situation is from the game Fischer-Taimanov match
game in 1971. 1...Nf3 Black's main aim will be in controlling
the advance of White pawn heading for the h8-square. 2.h6
Ng5 3.Kg6 Now Black king cannot be moved either to e3, g3
or e5 because the Knight will get captured and this will
weaken your position. Therefore, Black is forced to move Nf3.
Such forced move is called as Zugzwang. 3...Nf3 4.h7 Ne5+
5.Kf6 and the pawn can not be stopped from heading the h8
square.


(3) Promoting Combinations


XABCDEFGHY
8-+-+-+-+(
7+p+-+k+-'
6-+-sn-+pzp&
5zP-sN-+-+-%
4-+-+-+KzP$
3+-+-+-zP-#
2-+-+-+-+"
1+-+-+-+-!
xabcdefghy

The Black pawn on b7 is a hinderance on the path of
promoting the White a5-pawn to a-8 square. Therefore, White
will be ready to capture this pawn at the cost of his own
Knight.  1.Nxb7 Nxb7 2.a6 h5+ 3.Kf3 An now Nobody can
stop the White pawn from promoting to Queen.


(4) Promoting combinations


XABCDEFGHY
8-+-+-+-+(
7+-+-+-+-'
6-+-+-+-mK&
5+-+-+-+-%
4-+-+-+R+$
3+-+-mk-+-#
2-+-+-zp-+"
1+-+-+-+-!
xabcdefghy

Here Black pawn is ready to promote to the  f1-square. White
to move. 1.Rg3+ Ke4 [1...Ke2 2.Rg2 Ke1 3.Rxf2 Kxf2 It will
lead to draw.] 2.Rg4+ Ke5 [2...Ke3 3.Rg3+ It will be a
repetion.] 3.Rg5+ White will keep on checking the Black King
and Black will try to move to the f8-square where White rook
will not be able to check.  3...Ke6 4.Rg6+ Ke7 5.Rg7+ Kf8
6.Rg5! f1Q 7.Rf5+ Qxf5 and wins. Line


(5) Zudro - Fogelevich
USSR USSR, 1938


XABCDEFGHY
8-+-+-+-+(
7+-tR-+K+-'
6-+-+-+-+&
5+-zp-+-+-%
4-+-zpk+-+$
3+-+-+-+-#
2-+-+-+-+"
1+-+-+-+-!
xabcdefghy

1...d3 2.Ke6! [2.Rxc5 d2 3.Rc4+ Ke5 4.Rc5+ Kd6 5.Rc8 Kd7]
2...d2 [2...Ke3 3.Rxc5 d2 4.Rd5 Ke2 5.Rxd2+ Kxd2] 3.Rd7
Ke3 4.Rxd2! Kxd2 5.Kd5 c4 6.Kxc4 Line