Wednesday, 25 April 2007

Friday chess puzzle #2: solution

I was surprised how quickly some of you solved last week's Friday puzzle from Asztalos vs Ban, Budapest 1956:

Asztalos vs Ban, Budapest 1956, Chess Tales Friday Puzzle

Obviously White can win Black's queen for his rook, but to win the game he also needs to get his king to the fourth rank first. So, the solution is:

1 Rh2+

Now:

1 ... Kg7; 2 Rg2+ Kany; 3 Rxg8 Kxg8; 4 Kg2 and the king reaches c4 with a straightforward win (see Chess Improvement #3: Your endgame databank).

But, Black has a clever defensive try:

1 ... Qh7;

Now:

2 Qxh7+ would be a mistake, as after 2 ... Kxh7, the Black king reaches c5 with the opposition, i.e. 3 Kg2 Kg6; 4 Kf3 Kf5; 5 Ke3 Ke5; 6 Kd3 Kd5; 7 Kc3 Kc5 with a standard drawn position

However, White can still win: 2 Kg2! and again the White king gets to c4 with a straightforward win: e.g. 2 ... Qxh2+; 3 Kxh2 Kg7; 3 Kg3 Kf6; 4 Kf4 Ke6; 5 Ke4 etc. or 2 ... Kg7; 3 Rxh7+ Kxh7; 3 Kf3

Stay tuned for this Friday's puzzle.

Tuesday, 24 April 2007

Marching the King

A King marching up a crowded chess board is a rare sight, but almost always the sign of a spectacular game. Most often, it is because the King has been driven up the board by the attacking pieces to be lured into a mating net, but occasionally the march is voluntary.

In this post, I've got an illustration of both. They are from two of the best games in chess history. The first sees Mikhail Tal strolling up the board, sacrificing two pawns in the process, to set up a winning ending. The second is a spectacular king hunt by Alexander Kotov; the most beautiful game played at the famous Zurich 1953 Candidates Tournament.

Tal vs Lissitzin, Instructive ChessThis is the postion after 24 moves in Tal vs. Lisitsin, Leningrad 1956 (Game no.2 in Chernev's "The Most Instructive Games of Chess Ever Played"). Tal has sacrificed a pawn to hem in Black's bishop and break up the kingside pawn structure, but Black is not without compensation: his rook is on the open file, his knight is preparing to invade and White's kingside pawns are potentially vulnerable. Tal, though, hit on an inspired idea to exploit Black's weaknesses: he marched his king up the board:

25 Kd2! Ng3; 26 Kc3 f4; 27 Kd4 Bf5; 28 Rd2 Re6; 29 Nc5 Rh6; 30 Ke5! Bxd3; 31 cd Rxh3; 32 Kd6 Rh3+; 33 Kc7

Tal vs Lissitzin, Instructive ChessIn just 8 moves Tal's king has gone from c1-c7 and he has sacrificed a second pawn. However, he now uses the active position of his king to force a won rook ending:

33 ... Nf5; 34 Kb7 Nd4; 35 Rf2 a5; 36 Rxf5 Ne6; 37 Rg4+ Kf8; 38 Kxc6 Nxc5+; 39 Kxc5 Re6; 40 Kxd5

Tal is clearly better in this rook ending; it's instructive to follow his technique in concluding the game:

40 ... Rb6; 41 b4 ab; 42 ab Ke7; 43 Kc5 Rf6; 44 Rd4 Rf5+; 45 Kb6 Rf6+; 46 Kc7 Rf5; 47 Re4+ Kf6; 48 Kc6 Rf2; 49 g4 h5; 50 gh Kg5; 51 b5 f5; 52 Rb4 f4; 53 b6 f3; 54 b7 1-0

The next game, Averbakh - Kotov Zurich 1953 was greeted with quotes such as "unique in chess literature" and "once in a hundred years". This is what Bronstein had to say about the position after White's 30th move:

Averbakh - Kotov, Zurich 1953 Candidates Chess Tournament
"The creative element of chess is generally thought to consist of three things: logic, accurate calculation, and technuique (this last includes a knowledge of theory). There is a fourth ingredient also, however, perhaps the most intriguing of all, although it is often overlooked. I refer to intuition - chess fantasy, if you prefer.

Occasionally a position arises in the course of a game which cannot be evaluated on general principles, such as pawn weaknesses, open lines, better development, etc., since the state of equilibrium has been upset on several counts, rendering an exact weighing of the elements impossible. Attempting to calculate the variations doesn't always work, either. Imagine that White has six or seven different continuations, and Black five or six replies to each move; it's easy to see that no genius on earth could reach even the fourth move in his calculations. It is then that intuition or fantasy comes to the rescue: that's what has given the art of ches its most beautiful combinations, and allowed chessplayers the chance to experience the joy of creating.

It is not true to say that intuitive games were only played in the days of Morphy, Anderssen and Chigorin (as if now, in our era, everything were to be based totally on positional principles and rigorous calculation!): I remain convinced that, even in the games which received the brilliancy prizes at this tournament, not all of the variations were calculated to the end. Intuition has been and remains one of the cornerstones of chess creativity - of which we shall now see proof positive." David Bronstein, International Chess Tournament: Zurich 1953

Kotov began a remarkable combination by sacrificing his queen:

30 ... Qxh3+; 31 Kxh3 Rh6+; 32 Kg4 Nf6+; 33 Kf5

Averbakh - Kotov, Zurich 1953 Candidates Chess TournamentThe king has been driven into the net of Black's remaining pieces, and now 33 ... Ng4! would have finished the game quickly. Although, after the move Kotov played, 33 ... Nd7, White despite his extra Queen was still unable to defend the position.

You can play through the full games Tal vs Lisitsin and Averbakh vs Kotov online.

Monday, 23 April 2007

How much time do you spend playing chess?

I got an email over the weekend from a Chess Tales' reader in Pune, India. Prashant, a medical student, asked "how much time do I spend playing chess, and against whom?"

I'm sharing it with you because, I thought it would be a great question to put to all you Chess Tales readers.

I tend to 'keep my eye in' by playing on the Internet; I use a couple of sites: Buho21 and more often nowadays on Chess Assistant. Both are free to join, check out my previous post about them. Buho21 is also a great place to practice my Spanish, unfortunately I don't have any Russian to use on Chess Assistant.

I only play blitz chess online (between 1 minute and 3 minutes each / game); it seems crazy, but I don't have the patience for anything longer in cyberspace. I had a spell where I was playing a tournament or two everyday online (and probably about 1-2 hours / day), but due to commitments of starting a new company (and writing a blog!) I've not been a regular visitor recently. You can check me out on either site under the handle 'rogercoathup'; please say "hi" and challenge me to a game.

I also play league chess (3 hour long games) for Tynemouth, where I captain one of the teams. I don't find time to get to many club nights though. Other than that, it's tournaments (usually 3 or 4 weekend swisses each year and the county championship). Looking ahead, I'm planning an International tournament in the summer, and a better organised training schedule in preparation. If that goes well, I'd like focus my energy on these higher level events.

Prashant explained that he gets to spend about 2 hours / day playing, and that is against Fritz or ChessMaster on a handeld.

I don't play against computers myself, but do use them when I'm analysing / playing through a game: an early version of the Fritz engine in ChessBase on my PC, or Hi-arcs / Sigma on my Mac. Buho21 used to have a free engine called Sherlock, but it's no longer available.

The handheld is interesting, I saw someone running Fritz on one the other night; she was analysing my game (against her father) whilst we played. In this case it was innocent, but I guess highlights how they could be used surreptitiously.

So what about you guys? Where do you play and how often? How much time do you spend studying game? And, perhaps more interestingly, how much time would you like to spend studying chess?

Sunday, 22 April 2007

More European Chess Championship photos

The Women's section at the European Chess Championships:

Women's Boards, European Chess Championships


Sophie Seeber outside the venue:

Sophie Seeber, European Chess Championships


Pictures by Martin Seeber

Resources for chess news

I'd been planning to post about the best resources on the web for chess news, but instead will just point you to Mark Weeks, who has compiled an excellent and well annotated list on About, "Elsewhere on the web: resources for chess news".

We like Mark at Chess Tales, and not only because we are in his list of the top 21 chess blogs!

Thinking chess books

One of the Chess Tales' readers has asked me if I could recommend a list of "must-have" chess books. I've started thinking hard, but believe me it's not easy. For example, opening books pre-dominate in chess literature, but with so many openings out there, and everybody having their own favourites, it's difficult to make general recommendations. I've set myself a target though: a top 10 by next Sunday. Keep watching this space!

In the meantime, let me talk about a book that came out recently and has been fighting Kasparov's "Life Imitates Chess" toe-to-toe for the review column inches: "The King's of New York" by Michael Weinreb.

This is not your usual chess book, but more a chronicle of the lives, relationships, and ups and downs of a 'wrong side of the tracks' but highly successful school chess team. Edward R Murrow school is in Brooklyn, New York and draws its students from a diverse range of cultures; the chess team, coached by a former hockey professional, includes a Lithuanian and a Puerto Rican amongst others.

I have to admit I haven't read the book, but it would great to hear the thoughts of any Chess Tales' reader who has. Email me on roger AT 21thoughts DOT com.

You can also check out what the newspapers have been saying about the book, whose subtitle is "A year among the geeks, oddballs and geniuses who make up America's top high school chess team":

"Geeks, oddballs and geniuses", Daily Telegraph (UK) 19th April

"Mad hot chessboard", NY Times (US) 4th March

"Chess with God (and others)", The Guardian (UK) 21st April

"He was more fun in the pawn squad", The Guardian (UK) 22nd April

Saturday, 21 April 2007

Chess improvement #3: Your endgame databank



If you want to succeed at Chess, it's crucial to know how to play fundamental endgames, how to convert those final positions and get valuable points on the tournament board. Equally important, a knowledge of fundamental endings will help you earlier in the game, enabling you to spot opportunities to simplify into positions you know are won, or to create drawing chances when all seems lost.

Kasparov referred to this as "investing in your own bank of endgames": the more endgames you know, the more points you will chalk up on the tournament board. This advice is applicable to all players from beginner to World Champion. The number and complexity of the endgames might increase, but the basic principle holds fast.

In this article, I'll introduce you to some of the 'basic' endings, those that I think it is essential for a novice to learn, and that a club player should know (it's amazing how many don't, even very good ones). I'm going to assume that you know how to checkmate with K+Q vs. K, K+R vs. K, K+2B vs. K; if you don't, then make that your starting point instead (see the book recommendations later).

I won't give variations, instead consider it a checklist of positions to test yourself against. If you need advice for any of these positions, post a comment and I'll happily show you the best continuations. Alternatively, look them up in your endgame book; if you don't have one, it might be time to invest. I'll recommend some at the end of the article.

King and Pawn vs. King



Is this a win or draw for White? Well, the answer depends on whose move it is. Can you play it out with both Black or White to play, and know how it finishes with best play? This is the first ending any chess player should learn and essential to master; consult your endgame book, learn it and also about the concept of "the opposition".

To some of you, this may seem trivial, but here's how Scotland's top woman player at an Olympiad handled it:



Seeing that she was going to lose her pawn on d5, she incredibly resigned! Of course, the position is completely drawn: she simply has to ensure that she meets Kxd5 with Kd3 gaining the opposition and drawing.

If the pawn is a rook pawn, then the ending is almost always drawn. Again check your endgame book to discover the additional drawing resources.

By knowing these basic positions you can make much more informed decisions when determining the best continuation earlier in the game.

King, Rook and Pawn vs. King and Rook
Rook endings are the most frequently encountered ending. They are full of complexities and subtleties that would take several lifetimes to master. A rule of thumb is "the active continuation is usually better than the passive continuation", and as for basic endings, there are two that are essential to know how to play.

The first is how to win this position:



The solution was first published by Lucena over 500 years ago, and involves the concept of "building a bridge"

And the second is how to draw this position, first published by Philidor in 1777:




Other essential endings
Do you know how to play King and Queen vs. King and Pawn on the 7th rank? I used it to good effect in the second round at the recent Edinburgh Chess Congress, sacrificing an extra pawn in order to win the race to Queen and reach this won ending (with Black to move):



Knowing this position was won was essential to being able to determine the winning continuation earlier in the game. I was amazed that my opponent, a strong and rapidly improving junior (around 1800 rated), didn't know this ending and questioned me afterwards about whether he could have drawn the position. Do you know how to win from here?

It's also essential to know that this ending with a Rook Pawn or Bishop Pawn is not winning (unless your King is very close). Do you know the defensive resource that gains the draw with the Bishop Pawn?

The final ending I want to show is the Bishop and Rook Pawn of the wrong colour:



Despite the extra material, White cannot win this position. Black simply moves his King between a8 and b7 and the best White can do is deliver a draw by stalemate. Play it out if you are not familiar with this ending.

Knowledge of Bishop and Rook Pawn of the wrong colour has saved me many half points on the tournament table, by directing games into the ending, e.g. by exchanging off more dangerous pawns.

My concluding advice is:

  1. Build your 'endgame databank' by learning these basic endings (and how to recognise a won, drawn or lost position)
  2. Whatever your strength, work to keep expanding your 'databank' by learning further endings

And the book recommendations:

Averbakh's Chess Endings Essential Knowledge is definitely the place to begin; a guide to handling all the fundamental endings I've discussed and many more.

For endgame reference and some training, then
Practical Chess Endings by Paul Keres remains the best.

And finally, for the strong player looking to improve, you might want to give serious consideration to Dvoretsky's Endgame Manual.


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Chess Tales by Roger Coathup: A collection of online articles about chess and chess players.