PRACTICAL CHESS ENDGAME or BRIAN'S CHESS FOLLY . 1/6/98


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 toValentin Albillo.

ALL RIGHTS RESERVED


THIS WEEK

Black to Play & WIN 

POSITION 41 

 

  FORSYTH NOTATION:8/3n4/2n3pp/1p1kp3/5P1N/4K1P1/1B5P/8: 


LAST WEEK, POSITION 40

For 50 years Walter Korn (1908-1997) was responsible for Modern Chess Openings. This book is a particular favourite of many chessplayers. An agebraic edition came out in 1990 (MCO 13). His other great passion was endgame studies. He was a FIDE international Judge for Chess Composition. In 1975 he wrote American Chess Art which contains 250 studies and is a good introduction to this department of the game.

Manchester Guardian 1950

White to Play & WIN 

 

  FORSYTH NOTATION:1k3b2/1r6/3PP3/3K4/5B2/8/p3p3/8: 

Computer analysis of this study indicates that the composer did not choose the best defence for Black. This makes the study unsound. White still wins but the solution is long and difficult. Although no longer a study (this may be arguable) it is still a very interesting position to analyse because it simplifies into a fascinating QBvQ ending.

1.e7!

[1.d7+ Ka7 2.Be3+ Ka6 3.d8Q e1Q 4.Qa8+ Kb5 5.Qxb7+ Ka4 6.Qc6+ Kb3=]

1...Bxe7!

[The composers intended solution is 1...e1Q 2.e8Q+ 2...Qxe8 3.d7+ Ka7 4.dxe8Q a1Q 5.Be3+ Rb6 (5...Ka6 6.Qa8+ Kb5 7.Qxb7+ Ka5 8.Qa7+ Kb5 9.Qxa1+-) 6.Bxb6+ Kxb6 7.Qb8+ Ka6 8.Qa8+ Kb6 9.Qxa1+- and white wins.The move 1....Bxe7! makes the win much more difficult.]

[1...Rxe7 2.dxe7+ Kb7 3.e8Q+-]

2.dxe7+ Ka7

3.Be3+!!

[Queening the e-pawn first only leads to a draw. 3.e8Q Rb5+ 4.Qxb5 e1Q (4...a1Q and black is mated in 6 moves begnning with Be6+) 5.Qa4+ Kb7 6.Qxa2= Thompson database ]

3...Ka6

[3...Ka8 4.e8Q+ Rb8 5.Qa4+ Kb7 6.Qc6#]

4.e8Q e1Q

5.Qa8+ Kb5

6.Qxb7+

Black finds himself in a cage.There is no escape.

6...Ka4

[6...Ka5 7.Qa7+ Kb5 8.Qc5+ Ka4 9.Qc2+ Kb5 10.Qc4+ Ka5 11.Qxa2+ Kb5 12.Qc4+ Ka5 13.Qc5+ Ka4 14.Qc2+ Kb5 15.Qc6+ Kb4 16.Bc5+ The c-file is mined so 16...Kb3 17.Qb5+ Kc2 18.Qa4+ Kb1 19.Qb3+ Kc1 20.Ba3+ Kd2 21.Bb4+ Ke2 and White mates in 5 moves.]

7.Qc6+ Ka3

[7...Kb3 8.Qc4+ Kb2 9.Bd4+ Ka3 10.Qd3+ Kb4 (10...Ka4 11.Qc2++-) 11.Bc5++-]

8.Bc5+ Kb2

[ Crafty 12.9 (Unix, no endgame databases) Valentin Albillo; found all the earlier moves of the main variation but now deviates 9.Bd4+ Kb1 10.Qb5+ Kc1 11.Qb2+ Kd1 12.Qxa2 but this only leads to a draw according to the Thompson database ]

9.Qb5+

9...Kc1

10.Qc4+ Kb2

11.Bd4+ Ka3

12.Qd3+ Kb4

[12...Ka4 13.Qc2++-]

13.Bc5++- Ka5 14.Qa3+ Kb5 15.Qb3+ Ka5 16.Qxa2+ Kb5 17.Qb3+ Ka5 18.Qb6+ Ka4 19.Qa6+ Kb3 20.Qa3+ Kc2 21.Qa4+ Kd3 22.Qc4+ and white wins.

Let us ignore the a-pawn and consider this ending generally. The ending QBvQ is usually drawn but here the White pieces were a formidable force. Even the White King was a great help because it had a centralised position and stopped the enemy King from escaping from its cage. White was also greatly helped by the passive position of the Black Queen. The checks had to be continuous. Any let up would allow Black to draw because the Queen could start checking. My advice is if you find yourself with a similar ending over the board then play on because the defence is difficult and you may well win. 


Easter Endgame Solving Tournament

Click here >> winners + solutions

Summer Solving Tournament starting in July and lasting for six weeks. Positions to solve on long holiday journeys or when sunbathing on the beach !!


24/5/98

Position 39Rubinstein

17/5/98

Position 38Hooper

10/5/98

Position 37Petrosian

03/5/98

Position 36O. Frink

28/4/98

Position 35Ed Lasker

21/4/98

Position 34Reinfeld

05/4/98

Position 33Mattison

29/3/98

Position 32S. Flohr

 

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