PRACTICAL CHESS ENDGAME 10/06/2001

Editor: Brian Gosling

ALL RIGHTS RESERVED

Welcome to this active site. Each week I am going to present to you a endgame position for you to solve or to workout the best continuation. Computer analysis will also be considered. Some of these positions will come from actual historical games. Others will be composed endgame studies, but all the solutions will be relevant to the practical game. The new position will occur each SUNDAY and I will always be pleased to receive POSITIVE feedback about the positions and the analysis and I will try to acknowledge these where relevant.

Thanks to Antonio Senatore, Henryk Kalafut, Paul Cheng, John Beasley and Gerard O'Reilly.
THIS WEEK

POSITION 195

Black to play & WIN

  FORSYTH NOTATION:5k2/p1p3p1/1p2p3/8/7P/5PP1/P4P2/6K1:


LAST WEEK, POSITION 194

Alfred Crosskill, (1829-1904).

English Endgame analyst of basic endings such as Queen against Rook, and Rook and Bishop against Rook. He wrote an important work under the pen-name Euclid called An analysis of the chess ending King and Queen against King and Rook (1895) which has to a great extent been ignored by modern analysts of the endgame.

Alfred Crosskill, 1890

White to play & WIN

 

    FORSYTH NOTATION:8/3k4/6r1/2QK4/8/8/8/8:

Crosskill showed that this ending QvR is not easy to win against accurate play. Black can set up with his Rook what has become known as the third rank defence. The stronger side without any prior knowledge of this ending and its subtlety, would find this defence difficult to break down. The winning procedure consists in driving the enemy King to the side of the board and then into the corner. When the King is in the corner the Rook can be forced away from the protection of the King.

1.Qa7+ Ke8

1...Kd8 2.Qf7 Ra6 (or 2...Rb6 3.Qf4 with a mirror image of the position after move 4 of the main line.) 3.Kc5 Kc8 4.Qe7 Kb8 5.Qd7 Ra7 6.Qd8+ Kb7 7.Kb5 Ra1 8.Qd5+ Kc8 9.Qg8+ Kc7 10.Qg7+ wins;

2.Qc7 Rh6

2...Rf6 3.Ke5 Rg6 4.Qc4! leads to the main line;

3.Ke5 Rg6

The mirror position is No 78 in John Nunn's book: Secrets of Pawnless Endings 1994.

4.Qc4! ...

A quiet move seems to defy logic but White sets up a 'zugzwang' position which will force Black to abandon the third-rank blockade.

4...Ke7

5.Qh4+! Kf7

6.Qh7+ ...

Black can no longer maintain the blockade on the third rank.

6...Rg7

7.Qf5+ Kg8

8.Ke6 Rb7

White has no fewer than six moves at this point leading to mate in 14 moves.

9.Qd5...

This was Crosskill's choice in his original analysis.

9...Rf7

Notice the alignment of the pieces along the white diagonal. It is visual aids like this that help the memory. White wants to reach this position with Black to move. Position No209 in Freeborough's Chess Endings (1891).

10.Qe5 Rf8

White triangulates with the Queen.

11.Qd4 Rf7

12.Qd5 ...

A very important position.The alignment again and now Black is forced to give way.

12... Rg7

13.Kf6+! Kh8

The King is cornered and now the Rook is forced away from the protection of the King.

14.Qh1+Kg8

15.Qh5...

Philidors position. He demonstrated over two hundred years ago that this position is a forced win !! The Rook is lost.

15...Rg1

16.Qe8 Kh7 17.Qe4+Kh8 18.Qa8+ Kh7 19.Qa7+White wins the Rook and Black is soon mated. 

A hundred years after his work was published, modern computer endgame databases confirm that much of Crosskill's analysis of the ending QvR was indeed correct.


Easter Endgame Competition:

Edyta Grylak (USA) Wins with Gerard O'Reilly (GB) Second.

>> Results and Solutions

 * www.chessending.com *

 

Antonio Senatore wins the Cumulative in May.

Click here for the weekly >> CUMULATIVE COMPETITION   

A Book Prize will be Awarded to the Highest Placed Newcomer.


  COMPETITIONS for 2001

1. Cumulative 2001 Prizes: 1st £100 or equivalent, 2nd £50, 3rd £30; 4th £20. (Total Prize Money=£200) Entries limited to 20 solvers. This event will run from 7/1/2001 to 30/12/2001. Present CUMULATIVE COMPETITION rules apply but note the prizes will go to those participants who climb the ladder the greatest number of times during the year. The relative position of the solver's name on the ladder will decide the allocation of prizes.

2. Endgame Solving Tournaments 2001. The nature of these events are changing. They will be directed at mainly new or intermediate solvers and will not be too difficult. No money prizes but a book prize for the highest placed newcomer. Events will take place at Easter, Summer and Christmas each consisting of 5 positions to solve. Present strict rules will apply; no computer analysis.


ARCHIVES

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Position 159

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Position 157

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Position 155

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Position 154

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Position 153

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Position 152

Botvinnik (2)

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Position 151

Havasi (2)

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Position 150

Capablanca (4)

23/7/00

Position 149

Berger

16/7/00

Position 148

Tarjan

9/7/00

Position 147

Reek

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Position 146

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Position144

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Position 143

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Position 140

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Position 139

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Position 138

Capablanca (2)
Pre 7/5/00 Archives

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