PRACTICAL CHESS ENDGAME or BRIAN'S CHESS FOLLY.

15/8/99

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.

ALL RIGHTS RESERVED

Thanks to Peter Berelos, Herryk Kalafut, Mike Fitch and Paul Cheng
THIS WEEK

POSITION 102

White to Play & WIN

 

  FORSYTH NOTATION:7n/p6p/1pp2k2/2P1pPpB/6P1/2P5/P6P/2K5: 


LAST WEEK, POSITION 101

Joseph Peckover (1896-1982) Endgame Study Composer. Born in England but emigrated to New York in 1921. Endgame Editor for the American Chess Quarterly 1961-65. Composed over a hundred endings many of which were of a high standard.

Joseph Peckover, 1954

White to Play & DRAW

 

FORSYTH NOTATION:6B1/4n3/1k6/6B1/8/5K2/3p4/3r4:  

Whites only drawing chance is to bring about a Rook vs Bishop ending. This type of ending is usually drawn providing the defending King does not get caught in the wrong corner. These are the corners which are the same colour as the Bishop. As the defending King is not likely to be near the corner he has good drawing chances. A knowledge of this basic ending helps in the solving of this remarkable but difficult study. 

1.Bb3! ...

This is the only move to meet Blacks threats.

1.Ke2? Rb1 2.Kxd2 Nxg8-+

1...Rb1

1...Rh1 2.Bxe7=;

1...Re1 2.Bxd2=

2.Bc2 ...

2.Bxe7? Rxb3+ 3.Ke2 Re3+! and Black wins.

2...Nd5

The Rook can be left on b1 for the moment.

2...Rb2? 3.Bxe7 Rxc2 4.Ke2=;

2...d1Q+? 3.Bxd1 Rxd1 4.Bxe7=;

2...Nf5? 3.Ke2 Nd4+ 4.Kxd2 Rb2 5.Be3=

3.Ke2 ...

Now white is threatening to take the Rook on his next move.

3.Bxd2? Rb2 and the ending is lost.

3...d1Q+

4.Bxd1 Nc3+

Black puts all his hope in this move but it is only good enough to draw.

5.Kd2 Nxd1

The problem is the Knight will not be allowed to escape alive. Other moves are no better.

5...Rxd1+ 6.Kxc3=;

5...Ne4+ 6.Kc2=

6.Kc2 Rb5

6...Nc3 7.Kxc3=;

6...Ra1 7.Bc1 Nf2 8.Kb2 (8.Be3+? Kc6 9.Bxf2 Ra2+-+) 8...Ra5 9.Be3+=

7.Bc1! Rd5

8.Bd2! Nb2

9.Be3+ Kb5

10.Kxb2 DRAW 

A recent development to the study of the endgame has been the use of databases for the analysis of many basic endings. This would be very useful in checking some of the analysis in the above ending.

It seems that everyone is now familar with the tremendous project of Ken Thompson who made his perfect analysis of important 5-piece endings available on CD-ROM. This work has been recently extended by other researchers who have looked at the idea of programs using the information from tablebases in the search analysis of a position. This means the program sees a tablebase position early on in its calculations and so it is able to make an effective evaluation of piece exchanges which lead to the 4 or 5 man ending. 

Some recent programs include algorithms which generate their own tablebases. An example is the Hiarcs 7.32 and Crafty 16.6 programs which use a TB alorithm developed by Eugene Nalimov of Microsoft. This is a welcome development because it leads to a accurate computer evaluation of many pre-tablebase positions. The only drawback of course is as these tablebases are self-generated they take up a lot of RAM. This may not be a problem in the future because as the technology improves the use of memory will become even more efficient than it is today.

Click here for the NEW weekly >> CUMULATIVE COMPETITION


ATTENTION

If anyone has doubts that their entry for the Summer Competition has not been submitted properly please send me an e-mail and I will check that it has been received. Thanks


Important Dates


  SPECIAL MILLENNIUM ENDGAME SOLVING COMPETITION

The competitor's 3 highest scores only will count. The winner will be announced in FEBRUARY 2000. The prize will be £100 or equivalent. In the case of a tie the prize will be shared.The MILLENNIUM COMPETITION closes with the Christmas event. No new participant can be considered for the prize.

 

Patrick Peschlow of Germany wins the EASTER Endgame Solving Tournament scoring grade A and leads the race for the millennium prize. There is a tie for second place between David Rowe, Mike Fitch and Henryk Kalafut scoring B+

 

 

 

 

The overall scores for the millennium prize are as follows:

Patrick Peschlow GERMANY

David Rowe ENGLAND

Mike Fitch USA

Henryk Kalafut USA/POLAND

 

 

A A

B+B+

B+

B+

 


ARCHIVES

8/8/99

Position 100

Mikenas

1/8/99

Position 99

Roycroft

25/7/99

Position 98

Sultan Khan

18/7/99

Position 97

Zakhodyakin

11/7/99

Position 96

Mieses

4/7/99

Position 95

Moravec

27/6/99

Position 94

Znosko-Borovsky

20/6/99

Position 93

J. Ban

13/6/99

Position 92

Lilienthal

6/6/99

Position 91

Marwitz

30/5/99

Position 90

Tarrasch

23/5/99

Position 89

Selman

16/5/99

Position 88

Bogoljubow

9/5/99

Position 87

Blackburne

2/5/99

Position 86

L.Pachman

25/4/99

Position 85

Chigorin

18/4/99

Position 84

Bernstein

11/4/99

Position 83

Riumin

28/3/99

Position 82

Rauzer

21/3/99

Position 81

Mason

14/3/99

Position 80

Bron

7/3/99

Position 79

Pillsbury

28/2/99

Position 78

Troitzky

21/2/99

Position 77

Teichmann

14/2/99

Position 76

Horwitz

7/2/99

Position75

Yates

31/1/99

Position 74

J.Behting

24/1/99

Position 73

Tartakower

17/1/99

Position72

Rinck

10/1/99

Position 71

Em Lasker

3/1/99

Position 70

Rossolimo

27/12/98

Position 69

Foltys

20/12/98

Position 68

Przepiorka

Pre 20/12/98 Archives

mailto: brigosling@aol.com

BRIAN'S CHESS LINKS