Nearly Finished: lessons from the chess endgame

[First published in The Vacuum]

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“Finished, it’s finished, nearly finished, it must be nearly finished.” – Samuel Beckett, Endgame



Sometimes, after the initial emergence of the armies onto the field and their first battles, there is not yet a checkmate, nor even a likely winner. Perhaps the Queens have been swapped, and some other pieces also exchanged, and the forces available to each side are equal, or approximately so; then we enter a new phase, the endgame. The armies have each suffered too many losses for there to be the possibility of a direct attack on the king, but the game can still be won. The goal now is to recruit extra troops, by promoting a pawn to a Queen; perhaps a pawn can already see a route through to the touchdown, but more usually the side with the advantage must adopt a slower approach, jockeying for position and seeking to create a combination of threats that cannot all be met at once.


 

 

 

“If you have any doubt what to study, study endgames. Openings teach you openings. Endings teach you chess.“

— Stephan Gerzadowicz, Thinker’s Chess.


 

 

“Well, hmmm, endgames, yes, they are important, Yaaaaawwwwnnnnn!”

— Norbert Friedrich


The normal values of chess are transformed in the endgame. Pawns that may be cheerfully offered in a gambit in the opening phase are now carefully shepherded. The King, who until now has been hiding fretfully in his castle while the fearsome Queens stalk the board, now ventures out and takes a full share of the battle, being more effective in the attack, it is said, than a Bishop or a Knight. Formerly, speed and accuracy were essential to success, but now, there is no need for hurry.


The endgame is often deprecated by club players, who often regard an exchange of queens with a shrug and the expectation of an early trip to the bar. But this neglect and disdain is unjustified. In some respects the endgame is chess in its pure form. It’s a long way from any help from prepared moves in opening books, a long way from the thud-and-blunder of the middlegame. The simplified positions of the endgame allow for much deeper analysis, more exact judgements, a greater role for logic. There are chess endgame studies, a branch of chess where composed endgame positions show the full potential of the chess pieces in carefully contrived set pieces of analytical geometry, and show the beauty inherent in the rules of chess in a way that a routine tournament game may not. It is also the phase where the differences between players of different levels are said to be seen most sharply.


 

 

 In order to improve your game, you must study the endgame before everything else, for whereas the endings can be studied and mastered by themselves, the middle game and the opening must be studied in relation to the endgame.

– Jose Raul Capablanca, World Champion 1921-1927

 A characteristic of this kind of endgame is the switching of the attack from wing to wing. This is not a random thing. The broad pattern of this game is that White (Capablanca) first draws Black’s (Kupchik’s) King and Rook over to defend the Queen’s-side; Black’s King’s-side is then less well-defended; so White switches his attack to the King’s-side; in trying to defend himself there too, Black becomes disorganised; White finishes with a two-pronged attack on both wings.

– David Hooper


The rules of chess limit the longest game that is possible. A draw can be claimed if 50 moves (50 each by White and by Black) care made without a pawn being moved or a piece being taken. So, the longest chess game theoretically possible is 5949 moves, but in fact the longest game actually played was a mere 269 moves, contested between Nikolic and Arsovic at Belgrade in 1989. This monster is quite the exception; most games, even games featuring an endgame phase, reach some sort of decision long before then.


The greatest player of chess endgames was also perhaps the greatest ever player of chess, a Cuban genius called José Capablanca, World Champion from 1911-1927. He learned the game at four years old by watching his father play, and revealed his grasp of the game by laughing when he saw an illegal move made. His claim to understand how to play was at once challenged, and he promptly won the game. He was a truly natural player; someone once said, “chess was his mother tongue”. Some like it hot… Capablanca was always supernaturally cool. His play has been variously described as deft, subtle, accurate, intuitive. How did Capablanca approach the endgame? His naturally calm and elegant style was ideally suited to this phase of the game. He was never in a hurry; he seemed always immediately to understand what to do, always in control; he played quickly and confidently, making moves that seemed quiet and even slow, but which collectively were irresistible.

  Suddenly Capablanca came into the room. Learning the reason for the dispute the Cuban bent down to the position, said ‘Si, si,’ and suddenly redistributed the pieces all over the board to show what the correct formation was for the side trying to win. I haven’t exaggerated. Don Jose literally pushed the pieces around the board without making moves. He just put them in fresh positions where he thought they were needed.

 Suddenly everything became clear. The correct scheme of things had been set up and now the win was easy. We were delighted by Capablanca’s mastery…

— Alexander Kotov, Think Like a Grandmaster


 

 

 

 

 

 Whether this advantage is decisive or not does not interest Capablanca. He simply wins the ending! That’s why he is Capablanca!

— Max Euwe , World Champion 1935-37


The things that came so easily to Capablanca come rather harder to the rest of us but are to be sought after – perhaps not just in the realm of chess. Capablanca not only understood how to play the chess but also the man. From a grasp of the overall position comes a plan, and the plan can be implemented in a number of steps… Perhaps the steps must be taken in a particular order, and at once, but more often there is time to play slowly. One can feint, delay, undo and then repeat manoeuvres… The psychological difficulties inherent in defending a slightly inferior position against an opponent who is in no hurry to press matters should never be underestimated. The books on the chess endgame may emphasise theoretical considerations, technical recipes that some players repeat like magic charms: “in an endgame with just kings and a rook each with a rook’s pawn for one side, the game is drawn if the pawn has advanced to the seventh rank, but may be won if the pawn is no further than the sixth…”. Theoretically marginal positions account for a small proportion of endgames actually played. The practical endgame is more often decided by judgement and character than a prior consultation with a book of spells.


There are players who specialise in the endgame; then comes the phase where they renew their focus, and new opportunities to play for a win present themselves. Perhaps the position is equal, but likewise, we believe, is the start position of a game of chess, and that is worth playing: so, let us play some more chess, and I will play better than you… This type of game is sometimes disparagingly referred to as an “endgame grind”, but this doesn’t give proper respect to the skill that professional players bring to garnering points late in a session. They can find ways of making life difficult for their opponents even in the most placid of positions, their pieces drift into slightly better places, you find your options becoming more and more restricted until finally you die of asphyxiation or lash out through boredom or frustration. If you want to win tournaments, particularly the unforgiving “weekend Swiss”, every possible half-point must be harvested; there are no prizes for conceding draws against undistinguished opposition. The killer instinct of a top player is never more clearly shown than in the endgame: it is the instinct of a cat with a mouse. Simon Webb once wrote about playing a “dead drawn” position against Tony Miles in this sort of mood: he described being in turn puzzled, frustrated, impatient… he lost.


 

 

 

 … I was surprised to see that Capablanca did not initiate any active manoeuvres and instead adopted a waiting game. In the end, his opponent (Ragozin) made an imprecise move, the Cuban won a second Pawn and soon the game.

 ‘Why didn’t you try to convert your material advantage straight away?’ I ventured to ask the great chess virtuoso. He smiled indulgently: ‘It was more practical to wait’.

— Mikhail Botvinnik, World Champion 1948-63

 It was night. I went home and put my old house clothes on and set the chessmen out and mixed a drink and played over another Capablanca. It went fifty-nine moves. Beautiful, cold, remorseless chess, almost creepy in its silent implacability.

When it was done I listened at the open window for a while and smelled the night. Then I carried my glass out to the sink sipping it and looking at my face in the mirror.

‘You and Capablanca,’ I said.


— Raymond CHANDLER, The High Window, final sentences.


What can we learn from chess? Lessons from life, perhaps, but also lessons about ourselves. Shallowness, muddle-headedness, vagueness, haste, unfounded hopes and fears; all are rapidly exposed and punished on the chess board. Benjamin Franklin wrote how chess can teach us “foresight, circumspection, and caution”; EM Forster regarded the chessboard as “a forcing house where the fruits of character can ripen more fully than in life”, and these two sides of the coin are surely both true. Poker is said to reveal personality, but how much more starkly does the game of chess, where nothing is hidden, in the end.

Samuel Beckett’s Endgame can be read at samuel-beckett.net/endgame.html

P.S. Endgamers do Endgame: https://www.youtube.com/watch?v=K52vD4WBdLw&t=5534s

Queen against Pawn

Not much of a contest? Well, this can be tricky if the Pawn is nearly a Queen itself – as might happen if you had a Pawn each and both were racing to promote. If your Pawn became a Queen, could you still win by stopping the opponent’s Pawn? This sheet tells you how – if it can be done at all.

Case 1. Centre Pawn on the Sixth

If White can blockade the Pawn by putting the Queen or the King in front of the Pawn (say, d1) White will win, of course.

Even if the Queen and the King are both distant, White still wins.

Bring the Queen in with checks and make the Black King blockade or lose the Pawn; then bring in the King.

1. Qd5 d2 2. Kd7 Kc2 3. Qc4+ Kb1 4. Qd3+ Kc1 5. Qc3+ Kd1

Now White can move the King:

6. Ke7 Ke1 7. Qe3+ Kd1 8. Ke6…

The King creeps forward until it gets within range (Case 2)…

Case 2. Centre Pawn on the seventh

With the White King close, White wins by attacking the Pawn with the King.

1. Qc3+ Kd1 2. Ke3 Ke1 3. Qxd2+ Kf8 4. Qf2#

Case 3. Rook’s Pawn on the seventh

With the White King distant, a Rook’s Pawn (a-Pawn or h-Pawn) draws:

1. Qb4+ Ka1

…and White has no time to move the King closer because of stalemate.

Case 4. Knight’s Pawn on the seventh

With the White King distant, b-Pawn (or g-Pawn) loses.

White wins as in case 2: there is no stalemate trap.

Case 5. Bishop’s Pawn on the seventh

With the White King distant, a c-Pawn (or f-Pawn) draws:

1. Qb3+ Ka1!

…BUT…

Case 5b. Bishop’s Pawn on the seventh

With White King not so distant, and on same side as the Black King, White wins (just!) by threatening mate:

1. Kc2 f1=Q 2. Qd2#

Other squares can also work: Kc1 and Ke3 in the diagram above.

Planning in the endgame

Lessons that can be applied elsewhere, I hope; if you have examples
of games where you have struggled, send them in.

How to plan, anyway (from Jeremy Silman).

Botvinnik-Kann

Here is a breakdown of the different imbalances:

1) Material (owning pieces of greater value than the opponent’s).

2) Space (the annexation of territory on a chess board).

3) Superior Minor Piece (the interplay between Bishops and
Knights).

4) Pawn Structure (a broad subject that encompasses doubled pawns,
isolated pawns, etc.).

5) Control of a key file or square (files and diagonals act as
pathways for your pieces, while squares act as homes

6) Lead in development (more force in a specific area of the
board).

7) Initiative (dictating the tempo of a game).

Recognising these imbalances (you will find definitions to all
these terms in the Glossary at the end of this book) and understanding
their relationship to planning will be the main focus of this book. If
we are to use these things properly we must be able to break down our
thinking in a way that allows us to dissect any particular position.

Here are the stages of my thinking technique that enables us to
accomplish this:

1. Figure out the positive and negative imbalances for both sides.

2. Figure out the side of the board you wish to play on. You can
only play where a favourable imbalance or the possibility of creating a
favourable imbalance exists.

3. Don’t calculate! Instead, dream up various fantasy positions,
i.e., the positions you would most like to achieve.

4. Once you find a fantasy position that makes you happy, you must
figure out if you can reach it. If you find that your choice was not
possible to implement, you must create another dream position that is
easier to achieve.

5. Only now do you look at the moves you wish to calculate (called
candidate moves). The candidate moves are all the moves that lead to our
dream position. This will be discussed fully in Part Three of this book.

Let’s now take a look at this thinking technique in action. If
it seems difficult, don’t panic! It just takes practice. Nobody ever
said that getting your thoughts to work in a structured way would be
easy!

Complete game

  • Botvinnik M. – Kan I. [E21]

Elements of endgame planning:

1. Passed pawn

  • Fischer R. – Berliner [B03]

2. Pawn majority

  • Marshall F. – Capablanca J. [D33]

3. Rook on the seventh

  • Fischer – Petrosian [B42]

  • Capablanca J. – Tartakower S. [A90]

4. Infiltration (Weak colour complex), blockade, breakthrough

  • Bernstein – Mieses [B45]

  • Petrosian A. – Hazai L. [E80]

  • Pillsbury H. – Gunsberg I. [D94]

5. Accumulation theory

  • Steinitz – Blackburne [C29]

6. Two weaknesses

  • Hug – Barle [C50]

  • Lasker E. – Capablanca J. [D62]

7. Manoeuvring

  • Nimzovitch A. – Capablanca J. [B12]

8. Minority attack

  • Vogt – Andersson [B84]

9. Endgame technique

  • Calvo – Anderssen [B15]

A bit of Capablanca magic

“Once in a lobby of the Hall of Columns of the Trade Union Centre
in Moscow a group of masters were analysing an ending. They could not
find the right way to go about things and there was a lot of arguing
about it. Suddenly Capablanca came into the room. He was always find of
walking about when it was his opponent’s turn to move. Learning the
reason for the dispute the Cuban bent down to the position, said ‘Si,
si,’ and suddenly redistributed the pieces all over the board to show
what the correct formation was for the side trying to win. I haven’t
exaggerated. Don Jose literally pushed the pieces around the board
without making moves. He just put them in fresh positions where he
thought they were needed.”

“Suddenly everything became clear. The
correct scheme of things had been set up and now the win was easy. We
were delighted by Capablanca’s mastery…”

— KOTOV, Think like a
Grandmaster, tr. Cafferty, pub. 1971 Batsford.

  • Capablanca – Ragozin [E22]

Alekhin plays for a win

  • Znosko Borovsky Euge – Alekhin Alexander [C79]

The best books for further study of endgame planning are undoubtedly
Shereshevsy’s.

Click […] for list of games

Endgame ahoy!

A couple of members were struck by Simon’s discussion of
the [url=http://exeterchessclub.org.uk/content/ruy-lopez-exchange-variation-white-wins]Ruy Lopez Exchange Variation[/url]
during his talk about [url=http://exeterchessclub.org.uk/content/exchanging-king-endings]King and Pawn
endgames[/url].  That’s the best example of endgame thinking arising
in the opening, but it’s not the only one. 

There are [url=http://exeterchessclub.org.uk/content/middlegame-endings-and-endgame-openings]endgame
openings[/url],
where the
queens come off early and the players forget about mating
attacks, as recommended by Edmar Mednis. There is one more opening
where we see an early queen swap:
Lasker’s Petroff exchange variation of the Petroff.  Far from
choosing a
drawing variation, Lasker played it to win against selected opponents,
like Frank Marshall who might be expected to over-egg it.  One
simple win from him was:

Example Game: Emanuel Lasker – Richard
Teichmann 1-0 [C42]

Much more commonly, we see endgame thinking arise in
games where there is a [url=http://exeterchessclub.org.uk/content/pawn-formations]pawn
structure[/url] which will definitely get
better and better for one side as we approach the endgame — a familiar
example is the [url=http://exeterchessclub.org.uk/content/queens-gambit-acceptedisolated-queens-pawn]Isolated Queen’s Pawn[/url]. 

[blockquote]”[em]Before the endgame,
the
gods have placed the middlegame.[/em]” — Tarrasch. 
[/blockquote]
Couldn’t
agree more, but accepting a pawn weakness for attacking chances
immediately gives your opponent a winning plan, namely, survive, swap
and win the endgame …

Example Game: Emanuel Lasker – Siegbert
Tarrasch 1-0 [D34]

I’ve found a comparable example from the French Defence
…

Example Game: Hartman – Yanofsky 1-0
[C09]

,  and was immediately reminded of the same sort of
issue
with the
Backward Pawn you get in the same opening …

Example Game: Hunt Harriet – Song Yi 1-0 [C03]

The [url=”http://exeterchessclub.org.uk/content/whos-afraid-big-bad-minority-attack”]minority attack[/url]

in
the Queen’s Gambit Declined Exchange
Varation is all about saddling Black with a weakness that will persist
into the endgame:

Example Game: Evans – Opsahl 1-0 [D36]

In the games of Rubinstein and Capablanca we often see
opponents lured into losing endgames, lost because of weaknesses
acquired, if not in the opening, then certainly long ago; I gave a
couple of examples…

Example Game: Jose Capablanca – Abraham Kupchik 1-0 [C49]

Example Game: Jose Capablanca – Milan Vidmar sr [New York] 1-0 [C98]

…a couple of sessions ago, and offer today
another from Rubinstein …

Example Game: E. Cohn – A. Rubinstein
0-1 [D29]

Click on […] to see games list.

P.S. The famous Flohr-Capablanca game is here:

Example Game: flohr – moscow
capablanca 1/2 [D62]

Flohr did everything right – but couldn’t win!

The mate with Bishop and Knight

Danny Sparkes and Norbert Friedrich.

Danny Sparkes recently took us through the technique here, and
had some fun at the expense of a range of computers and computer
programmes who seem generally clueless about t. I don’t have his
notes but I do have tucked away some similar notes by Norbert
Friedrich, who also has a mild dig at computer technique, and whose
notes I have expanded on a little below. (If you have ChessBase 6.0
or above, the database will show some helpful extra detail of the
patterns.)

Why bother?

(1) You might have to do it, and under pressure. Susan Lalic was
surprised by Galliamova recently, who headed for this endgame as a
reasonable drawing attempt. Susan made the mate – in 45!

(2) It also illustrates how to co-ordinate three slightly
awkward pieces – perhaps you may never have to prove the mate, but
you will have to co-ordinate the activity of your minor pieces, and
this is a suitable arena in which to rehearse.


(658) The basic technique [Norbert
Friedrich]

+-----------------+
|k+.+.+.+|
|+.H.+.+.|
|.+K+.+.+|
|+.+.+.+.|
|.+.G.+.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

DRAWING A “W”: To win KBN-K you first have to force the king to
the 8th rank. If the king escapes to his safe corner then, “drawing
an W” is a useful help to remember. The knight moves like a “W”
(c7-d5-e7-f5-g7), the bishop does not allow Black’s escape to the
safe corner and the White king steps towards the winning corner on
the 6th rank. Finding the mate then should not create problems
anymore. 1.Nc7+ Kb8 2.Bc5 Kc8 3.Ba7 Kd8 4.Nd5 Ke8
Offers more resistance than Kc8

[4…Kc8 5.Ne7+ Kd8 6.Kd6 Ke8 7.Ke6 Kf8 (7…Kd8 8.Bb6+ Ke8
9.Ba5 Kf8 10.Nf5 Ke8 11.Ng7+ Kf8 12.Kf6 Kg8 13.Kg6 Kf8 14.Bb4+ Kg8
15.Bc5 Kh8
Now you must play a check to g8 with the Knight,
but not from f6! 16.Nf5 Kg8 17.Nh6+ Kh8 18.Bd4#) 8.Nf5 Ke8
9.Bb6 Kf8 10.Bc7 Ke8 11.Ng7+ Kf8 12.Kf6 Kg8 13.Kg6 Kf8 14.Bd6+ Kg8
15.Nf5 Kh8 16.Be7 Kg8 17.Nh6+ Kh8 18.Bf6#]

5.Kd6 Grit you teeth and allow the King to come
forward two squares… 5…Kf7 6.Ne7 Stops the
King coming to g6. 6…Kf6

[6…Kg7 7.Be3]

7.Be3!

+-----------------+
|.+.+.+.+|
|+.+.H.+.|
|.+.I.i.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.G.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

The second detail to remember. The King covers the red squares
(ChessBase 6 format), the Knight covers the green squares, and the
Bishop covers the yellow squares, and the ‘net’ effect is a box
from which the Black King can only escape backwards. Neat, eh?
7…Kf7 8.Bd4 The net effect again.
8…Ke8 9.Ke6 Kd8 10.Bb6+ Again, the Bishop and
Knight cooperate to block off all the escape squares on the
c-file.. 10…Ke8 11.Nf5 Kf8 12.Bc7 Ke8 13.Ng7+ Kf8 14.Kf6
Kg8 15.Kg6 Kf8 16.Bd6+ Kg8

+-----------------+
|.+.+.+k+|
|+.+.+.H.|
|.+.G.+K+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

Now it’s mate in four: we must play check to g8, but not from
f6. 17.Nf5 Kh8 18.Be7 A tempo move.
18…Kg8 19.Nh6+ Kh8 20.Bf6# 1–0


(659) Endgame Data Bases [Norbert
Friedrich]

+-----------------+
|k+.+.+.+|
|+.+.+.+.|
|.GK+.+.+|
|+.+N+.+.|
|.+.+.+.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

Any endgame database (Check those by Ken Thompson) will tell you
that there might be faster wins or better defenses. Its mysterious
move suggestions might be of scientific interest but are IMO hardly
of a practical value: The following was recently posted in
rec.games.chess.analysis by Steven Edwards. Note that the bishop is
on e3 and the knight on d5, though that should not create a
difference. Evaluation: Mate in 20 1.Bb6 Bc5 Bd4
Bf2 Bf4 Bg1 Nc7+

[After playing the following moves: 1.Nc7+ Kb8 2.Bb6 Kc8 3.Ba7
Kd8 4.Nd5 Kc8 … Evaluation: Mate in 13 5.Ne7+ Kd8 6.Kd6 Ke8 7.Ke6
Kd8 Kf8 8.Bb6+ Ke8 9.Nf5 Kf8 10.Bc5+ Bd4 Bd8 Be3 Bf2 (10.Be3
Ke8 11.Bg5 Kf8 12.Be7+ Kg8 13.Kf6 Kh7 14.Kf7 Kh8 15.Kg6 Kg8 16.Nh6+
Kh8 17.Bf6#)
10…Ke8

+-----------------+
|.+.+k+.+|
|+.+.+.+.|
|.+.+K+.+|
|+.G.+N+.|
|.+.+.+.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

If letting the Black King off the back rank makes you nervous,
you will have to see the mate in 6, which starts by threatening
mate in one, by shielding the line of the Bishop. 11.Nd6+ Kf8
(11…Kd8 12.Bb6#) 12.Kf6 Kg8 13.Nf5 discovering an attack
on the square just vacated. 13…Kh7 14.Kf7 Kh8 15.Kg6 Kg8 16.Nh6+
Kh8 17.Bd4#]

1…Kb8 2.Nc7 Kc8 3.Ba7 Kd8 4.Nd5 Ke8 5.Bd4 Kd6
5…Kd8 Kf7 6.Be5 Kc8 7.Nb6+ Ne7+
7…Kd8 8.Bf6+ Kd6 8…Ke8 9.Kd6 Kf7
10.Nd5 Kf8
Kg6 11.Ke6 Ke8 12.Bg5 Bh4 Nc7+
Ne3 12…Kf8 13.Be7+ Kg7 14.Nf4 Kg8 Kh7
15.Kf6 Kh7 Kh8 16.Bf8 Kg8 Kh8

+-----------------+
|.+.+.Gk+|
|+.+.+.+.|
|.+.+.I.+|
|+.+.+.+.|
|.+.+.H.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

A different mate in four. 17.Ne6 Kh7 Kh8
18.Kf7 Kh8 19.Bg7+ Kh7 20.Nf8# Ng5#
Line


(661) Fine No.4/No.5 [RF]

+-----------------+
|.+.+.+.+|
|+.+.+.+.|
|.+.+.+.+|
|I.i.+.+B|
|.+.+.+.+|
|+.+.+.+.|
|.+.+.+.+|
|H.+.+.+.|
+-----------------+

The White pieces are in their worst possible positions. Mate can
be achieved only at a8 or h1.As White you have a three-stage
plan:(1) drive the King to the edge.(2) drive the King to a corner:
it will (or should) head for a1/h8(3) drive the King across to the
other corner. 1…Kc6

[1…Kc4 2.Bf7+]

2.Nb3 Kd6

[2…Kd5 3.Kb5 Kd6 4.Kc4 Ke5 5.Nc5 Kf5 6.Kd5 Kg5 7.Bf3 Kf5 8.Ne6
Kf6 9.Be4 Ke7 10.Ke5 Kf7 11.Nf4 Kg7 12.Bd5 Kh7 13.Kf6 Kh8 14.Ng6+
Kh7 15.Be6]

3.Kb5 Kd5 4.Bf7+ Ke5

[4…Kd6 5.Bc4 Ke5 6.Kc5 Ke4 7.Kd6 Kf5 8.Bd3+ Kf6 9.Nd2 Kf7
10.Nc4 Kf6 11.Ne5 Kg7 12.Ke7 Kh8 13.Kf6 Kg8 14.Nf7]

5.Kc5 Kf6 6.Bc4 Ke5 7.Nd2 Kf4 8.Kd6 Kf5

[8…Ke3 9.Nb3 Kf4 10.Bd3 Kg5 11.Ke5 Kh6 12.Kf6 Kh5 13.Bf5 Kh4
14.Kg6 Kg3 15.Kg5 Kf3 16.Bc2 Ke3 17.Kg4 Ke2 18.Kf4 Kf2 19.Bd1 Ke1
20.Bf3 Kf2 21.Nd4]

9.Bd3+ Kf6 10.Nf3 Kf7 11.Ke5! Kg7

[11…Ke7 12.Bc4]

12.Ng5

[While we are going through, watch how the Knight moves!]

12…Kg8! 13.Kf6 Kf8 14.Nf7 Kg8

+-----------------+
|.+.+.+k+|
|+.+.+N+.|
|.+.+.I.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+B+.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

No.5Black is near the ‘safe’ corner, and we need to get him to a
mating corner. The way to do this was first shown by Philidor, and
is to be found in the books by Fine and Averbakh. 15.Bf5
Kf8 16.Bh7 Ke8 17.Ne5 Kd8

[17…Kf8? 18.Nd7+ Ke8 19.Ke6 Kd8 20.Kd6 Ke8 21.Bg6+ Kd8 22.Nc5
Kc8 23.Bd3! Kd8 24.Bb5! Kc8 25.Bd7+ Kb8 26.Kc6 Ka7 27.Kc7 Ka8
28.Kb6 Kb8 29.Na6+ Ka8 30.Bc6#]

18.Ke6 Kc7 19.Nd7! This is the bit you need to
understand: it looks like the King has got out, but it hasn’t.
19…Kc6?! This natural move gets mated more
quickly. There are a couple of important patterns to remember:

[19…Kb7 20.Bd3! Kc6 The ‘net effect’ box again. 21.Ba6 Kc7
22.Bb5 and the wall. 22…Kd8 Okay, last trick. The Knight goes to
d5 to further restrict the King. 23.Nb6 Kc7 24.Nd5+ Kd8 25.Kd6 Kc8
26.Ke7 Kb7 27.Kd7 Kb8 28.Ba6 Ka7 29.Bc8 Kb8 30.Ne7 Ka7
(30…Ka8 31.Kc7 Ka7 32.Nc6+ Ka8 33.Bb7#) 31.Kc7 Ka8
32.Bb7+ Ka7 33.Nc6#]

20.Bd3! The King is in a little box.
20…Kb7

[20…Kc7 21.Bb5! The King’s escape is walled off. 21…Kc8
22.Kd6 Kd8 23.Nc5 Kc8 24.Bd7+ Kb8 25.Kc6 Ka7 26.Kc7 Ka8 mate in
three 27.Kb6 Kb8 28.Na6+ Ka8 29.Bc6#]

21.Kd6 Kc8 22.Nc5 Kb8

[22…Kd8 23.Bb5]

23.Kc6 This is not the fastest but is easier to
remember and more artistic.

[23.Kd7 is Fine’s slightly quicker method 23…Ka7 24.Kc7 Ka8
25.Kb6 Kb8 mate in three 26.Ba6 Ka8 27.Bb7+ Kb8 28.Na6#]

23…Kc8 Can you guess White’s next Knight
move? 24.Nb7 This is why I say it’s easier to
remember and prettier! 24…Kb8 25.Kb6 Kc8 26.Bf5+
Kb8

+-----------------+
|.i.+.+.+|
|+N+.+.+.|
|.I.+.+.+|
|+.+.+B+.|
|.+.+.+.+|
|+.+.+.+.|
|.+.+.+.+|
|+.+.+.+.|
+-----------------+

Now its mate in four. 27.Nc5 Ka8 28.Bd7 A tempo
move. 28…Kb8 29.Na6+ Ka8 30.Bc6# 1–0

The Principle of ‘two weaknesses’

The Principle of two weaknesses – one weakness or two?

One sick pawn can lose you the game, but you need two points of
attack to win. How does this add up?

  Both are true. In order to win against one weakness you
need to attack the weak point, gain an advantage in space or
mobility through this, and use your mobility to force through on a
second front. Then one or other point will crack because your
opponent’s pieces won’t be able to cover both attacks.
Chekhover-Rudakowsky is a nice example of this.

  In fact defensive play is so awful that your opponent
will probably give you an extra target out of carelessness or
frustration (Hutchings-Keene, Vogt-Anderssen).
But if not, you will have to open up another front
(Lasker-Capablanca). It may be that before going for your
primary target you should take time out to create a second weakness
for later (Hug-Barle). The key to understanding space
advantages is that you can use it to create weaknesses where none
existed (Tarrasch-Mieses).

 


Chekhover-Rudakowsky,
1945

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nc3
Nbd7 7. Qc2 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O b5 12.
Be2 a6 13. Ne4 Bb7 14. Ne5 Rac8 15. Nxd7 Qxd7 16. Nc5 Qc7 17. Rfd1
Rcd8 18. Rac1 Bc8 19. Qe4 Nf6 20. Qh4 Qa5 21. a3 b4

 

-+-T-Tj+
+l+-+xXx
xDx+x+-+
+-R-+-+-
pX-P-+-Q
+p+-P-+-
-+-+bPpP
+-R-+-K-

White has an advantage in space and mobility: Chernev suggests
counting up the legal moves available to the pieces on each side.

22. a4 Nd7 23. b3 Nxc5 24. Rxc5 Qb6 25. Rdc1 Bb7
26. a5 Qa7 27. Bd3 DIAGRAM

 

-+-T-Tj+
Dl+-+xXx
x+x+x+-+
P-R-+-+-
-X-P-+-Q
+p+bP-+-
-+-+-PpP
+-R-+-K-

White forces a weakness just as we learned above – but was only
able to do so because he attacked c6 first.

27…g6 28. Qf6 Rd6 29. Qe7 Rfd8 30. h4 R8d7 31.
Qf6 Qa8 32. Be4 Qe8 33. h5 Rd8 34. Bxc6 Bxc6 35. h6 Kf8 36. Rxc6
Rxc6 37. Rxc6 Rd7 (37… Qxc6 38. Qxd8+ Qe8 39. Qd6+ Kg8 40.
Qxa6 {threat Qb7} 40… Qe7 41. Qb6
) 38. Rc8 Qxc8 39. Qh8+
1-0

 

  The fact that weak pawns can lose you the game means that
many games are based around the theme of creating or threatening to
create weak pawns – the Nimzo-Indian, for example.


Hutchings-Keene, 1982

1.c4 Nf6 2.Nc3 b6 3.Nf3 Bb7 4.d4 e6 5.g3 Bb4

  Both Black bishops threaten to kick a hole in the White
pawn formation by …Bxc3 or …Bxf3.

6.Bd2 c5 7.a3 Bxc3 8.Bxc3 Ne4 9.Qc2 Nxc3 10.Qxc3
Qf6

  Renewing the threats against c3/f3.

11.Rd1 Bxf3 12.Qxf3 Qxf3 13.exf3 Nc6

 

t+-+j+-T
X-+x+xXx
-Xs+x+-+
+-X-+-+-
-+pP-+-+
P-+-+pP-
-P-+-P-P
+-+rKb+r

14.dxc5 {?}

  White’s f-pawns aren’t pretty but Black can’t get at them
at the moment. In any event, one weakness won’t lose the game.
Instead of avoiding further concessions, White hands Black the
half-open b-file and a target on b6. Any ‘pressure’ White hopes to
gain on the d-file will vanish the moment Black plays …Nd4.

14…bxc5 15.Bg2 Rb8 16.Rd2 Rb3 17.Kd1 Ke7 18.f4
Nd4 19.Kc1 h5 {!?} DIAGRAM

 

-+-+-+-T
X-+xJxX-
-+-+x+-+
+-X-+-+x
-+pS-P-+
Pt+-+-P-
-P-R-PbP
+-K-+-+r

The pressure on the b-file has given White a headache on the
King’s-side. Black’s last is a little trap…

20.h4 {?}

  Into which White falls.

20…Rhb8 21.Bf1 (penny drops!)
[21. Re1 Rxg3 22. fxg3 Nb3+ 23. Kc2 Nxd2 24. Kxd2 Rxb2+ 25. Kd3
Rxg2]

21…Rf3 22.Kd1 Rxa3 {!} 0-1

 


Vogt-Anderssen, 1978

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6
7.f4 Qc7 8.O-O Be7 9.Kh1 Nc6 10.Be3 Nxd4 11.Qxd4 O-O 12.Rad1 b5
13.e5 {!?} 13…dxe5 14.Qxe5 Qb8 {!} 15.Qxb8 Rxb8 16.Ba7 Ra8 17.Bb6
Bb7 18.a3 Rfc8 {!}

  Black has survived the sharp opening and now turns his
attention to is endgame plans. Black fixes attention on the pawn at
c2.

 

t+t+-+j+
+l+-LxXx
xB-+xS-+
+x+-+-+-
-+-+-P-+
P-N-+-+-
-Pp+b+pP
+-+r+r+k

19.Ba5 g6 20.h3 {?}

  This gives White a problem square on g3 and a problem
pawn on f4.

20…h5 21.Bf3 Bxf3 22.Rxf3 h4 23.Rd2 Rc4 24.b3
Rc6 25.a4 b4 26.Ne2 Rac8 27.c4 bxc3 28.Rxc3

  The weak c-pawn has been replaced in Black’s affections
by the weak b-pawn.

28… Nd5 29.Rxc6 Rxc6 30.Rb2 Bf6 31.Ra2 Rc8
32.Bd2 Rb8 33.Nc1 Nb4 34.Bxb4 Rxb4 35.Rf2 Be7 36.Rf3

 

-+-+-+j+
+-+-Lx+-
x+-+x+x+
+-+-+-+-
pT-+-P-X
+p+-+r+p
-+-+-+p+
+-N-+-+k

White is at full stretch…

36…Bd6 37.Ne2 Re4 38.Rd3 Bc5 39.Rc3 Bf2 40.Rc2
Kg7 41.Ng1 Rxf4 ….0-1

 


Lasker,- Capablanca,
1921

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3
Nbd7 7. Qc2 c5 8. Rd1 Qa5 9. Bd3 h6 10. Bh4 cxd4 11. exd4 dxc4 12.
Bxc4 Nb6 13. Bb3 Bd7 14. O-O Rac8 15. Ne5 Bb5 16. Rfe1 Nbd5 17.
Bxd5 Nxd5 18. Bxe7 Nxe7 19. Qb3 Bc6 20. Nxc6 bxc6 21. Re5 Qb6 22.
Qc2 Rfd8

 

-+tT-+j+
X-+-SxX-
-Dx+x+-X
+-+-R-+-
-+-P-+-+
+-N-+-+-
pPq+-PpP
+-+r+-K-

There are two isolated pawns: which is weaker?

23. Ne2 Rd5 24. Rxd5 cxd5

 

-+t+-+j+
X-+-SxX-
-D-+x+-X
+-+x+-+-
-+-P-+-+
+-+-+-+-
pPq+nPpP
+-+r+-K-

Now there is only one. It is not exposed on a half-open file, so
can White defend?

25. Qd2 Nf5 26. b3 h5 27. h3 h4

  a typical preparatory probe

28. Qd3 Rc6 29. Kf1 g6 30. Qb1 Qb4

 

-+-+-+j+
X-+-+x+-
-+t+x+x+
+-+x+s+-
-D-P-+-X
+p+-+-+p
p+-+nPp+
+q+r+k+-

Black’s pressure on the d-pawn cannot be increased. So Black opens
up a new point of attack.

31. Kg1 a5

  Lasker said when he saw this that he knew he was
lost.

32. Qb2 a4 33. Qd2 Qxd2 34. Rxd2 axb3 35. axb3
Rb6 36. Rd3 Ra6 37. g4 hxg3 38. fxg3 Ra2 39. Nc3 Rc2 40. Nd1 Ne7
41. Nc3 Rc1+ 42. Kf2 Nc6 43. Nd1 Rb1

 

-+-+-+j+
+-+-+x+-
-+s+x+x+
+-+x+-+-
-+-P-+-+
+p+r+-Pp
-+-+-K-+
+t+n+-+-

Black has his two points of attack.

44. Ke2

  I think not really a blunder, more a desire for clarity.
[44. Ne3 Na5 picks up the b-pawn anyhow]

44… Rxb3 45. Ke3 Rb4 46. Nc3 Ne7 47. Ne2 Nf5+
48. Kf2

 

-+-+-+j+
+-+-+x+-
-+-+x+x+
+-+x+s+-
-T-P-+-+
+-+r+-Pp
-+-+nK-+
+-+-+-+-

White still has two points to defend.

48… g5 49. g4 Nd6 50. Ng1 Ne4+ 51. Kf1 Rb1+ 52.
Kg2 Rb2+ 53. Kf1 Rf2+ 54. Ke1 Ra2 55. Kf1 Kg7 56. Re3 Kg6 57. Rd3
f6 58. Re3 Kf7 59. Rd3 Ke7 60. Re3 Kd6 61. Rd3 Rf2+ 62. Ke1 Rg2 63.
Kf1 Ra2

 

-+-+-+-+
+-+-+-+-
-+-JxX-+
+-+x+-X-
-+-Ps+p+
+-+r+-+p
t+-+-+-+
+-+-+kN-

Both sides are repeating moves: Capablanca because he can, Lasker
because he has to!

64. Re3 e5 the final push: Black creates
a passed pawn 65. Rd3 exd4 66. Rxd4 Kc5 67. Rd1 d4 68. Rc1+
Kd5

 

-+-+-+-+
+-+-+-+-
-+-+-X-+
+-+j+-X-
-+-Xs+p+
+-+-+-+p
t+-+-+-+
+-R-+kN-

poor White can do nothing 0-1


Hug – Barle (Pula izt) [C45]
1975

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. Bg5
Na5 7. Bb3 Nxb3 8. axb3 Be6 9. Na4

 

t+-Dj+-T
XxX-+xXx
-+-XlS-+
+-L-X-B-
n+-+p+-+
+p+p+n+-
-Pp+-PpP
R-+qK-+r

9… h6

[9… Bb6 10. Nxb6 axb6 or 10…cxb6; 11.d4! with a
superior pawn structure 11. Rxa8 Qxa8 12. Bxf6 gxf6 13. Nh4
Pritchett]

10. Bh4 Bg4

[10… g5 11. Bg3 Nd7 12. Nxc5 Nxc5 13. b4 Nd7 14.
d4]

11. Nxc5 dxc5 12.h3 Bxf3 13. Qxf3 Qd6 14. Bxf6
Qxf6 15. Qxf6 gxf6

 

t+-+j+-T
XxX-+x+-
-+-+-X-X
+-X-X-+-
-+-+p+-+
+p+p+-+p
-Pp+-Pp+
R-+-K-+r

Here we have the doubled f-pawns again. White can start an
immediate attack on them with O-O and f2-f4

16. Ra5!

  accurate: forces a permanent weakness on a7. Black must
divert his King to the Q-side when a shift to the f-file catches
him wrong-footed. Black is probably already lost.

[16. O-O Ke7 17. f4 h5 18. Rf2 Rh7 19. Raf1 and Black
can defend the one weakness on the f-file.]

16… b6 17. Ra6 Kd7 18. O-O Kc6

 

t+-+-+-T
X-X-+x+-
rXj+-X-X
+-X-X-+-
-+-+p+-+
+p+p+-+p
-Pp+-Pp+
+-+-+rK-

19. f4 Kb7 20. Raa1 Rh7 21. fxe5 fxe5 22. Rf6

  White now wins a pawn while Black struggles for
counterplay.

22… a5 23. Rf5 Re8 24. Raf1 Re7 25. Rh5 Re6 26.
Rhf5 Re7 27. g4 Kc6 28. Rf6+ Kb5 29. R1f5 a4 30. bxa4+ Kxa4 31. Rh5
c4 32. dxc4 Kb4 33. Rhxh6 Rxh6 34. Rxh6 Rd7 35. Rf6 Kxc4 36. Kf2
Rd2+ 37. Ke3

 

-+-+-+-+
+-X-+x+-
-X-+-R-+
+-+-X-+-
-+j+p+p+
+-+-K-+p
-PpT-+-+
+-+-+-+-

37… Rh2

[37… Rxc2 doesn’t help, e.g. 38. Rxf7 c5 39. Rf2
Rxf2 40. Kxf2 Kb3]

38. Rc6+ Kb5 39. Rxc7 Rxh3+ 40. Kf2 Rh2+ 41. Kg3
Re2 42. Kf3 Re1 43. Re7 f6 44. g5 fxg5 45. Rxe5+ Kc4 46. Rxg5 Rf1+
47. Ke2 Rb1 48. b3+ Kc3 49. Rb5 Rc1 50. Rxb6 Rxc2+ 51. Ke3
1-0

 


Tarrasch – Mieses (3) [C10]
1916

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6.
Bd3 Be7 7. O-O Nxe4 8. Bxe4 Nf6 9. Bd3 b6

 

t+lDj+-T
X-X-LxXx
-X-+xS-+
+-+-+-+-
-+-P-+-+
+-+b+n+-
pPp+-PpP
R-Bq+rK-

White has more space but no target as yet.

10. Ne5 O-O 11. Nc6 Qd6 12. Qf3 Bd7 13. Nxe7+
Qxe7 14. Bg5 Rac8 15. Rfe1 Rfe8 16. Qh3

 

-+t+t+j+
X-XlDxXx
-X-+xS-+
+-+-+-B-
-+-P-+-+
+-+b+-+q
pPp+-PpP
R-+-R-K-

White uses his better pieces to force a concession.

16… Qd6 17. Bxf6 gxf6 18. Qh6 f5 19. Re3 Qxd4
20. c3

 

-+t+t+j+
X-Xl+x+x
-X-+x+-Q
+-+-+x+-
-+-D-+-+
+-PbR-+-
pP-+-PpP
R-+-+-K-

Black is suddenly shot full of holes.

1-0

The beginning of the end?

My esteemed colleague Simon Waters is leading on King and Pawn endgames next week, so I will attempt a warm-up for him this week.

There are, in my mind, two types of chess theory: general and specific. In the opening, for example, we say that in general it’s a good idea to develop all your pieces once before moving any of them twice. Equally, we might offer that the sternest test of the Two Knights’ Defence is the move 4.Ng5, a view reinforced when Kasparov used it to duff up Timman.

Simon, I believe, intends to do some specific theory, and so my intention is to impart a few general principles. The point of this, as above, is that specific analytic discoveries can contradict general principles, and indeed some conclusions of K+P endgame theory are distinctly against what you might expect. Although I don’t know what you expect…

I propose to go through an old introductory handout about endgames, starting with the idea of a passed pawn…

  • RJ. Fischer – Berliner 1-0 [B03]

… and to recommend everyone play over as many games from ‘Capablanca’s 60 Best Endgames’ as they have time for (I’ll show you a couple in the session, too).

  • Jose Capablanca – Abraham Kupchik 1-0 [C49]
    Jose Capablanca – Milan Vidmar sr [New York 1-0 [C98]

But suggestions are welcome.

Basic Rook Endgames

We lost on board count to old rivals Teignmouth in the Peter Rooke Cup
at the end of January. One of the last games to finish involved a
simple-looking Rook endgame. Just as it was getting crucial, White,
short of time, found a time-saving blunder:

So what should the result have been? I discussed it briefly with my
friend Bill Ingham. As is often the way, he fancied his side’s chances
to win, and I hoped for a draw, but the discussion showed how vague we
all are about some basic theory. To be fair, some apparently small
differences can change the best obtainable result:

{White to move: draw.} 1/2-1/2

{White to move: win.} 1-0

So, what was the right result for the Teignmouth game?

Before I answer that, I want to decide: regardless of the right result,
what is the right approach?

You probably know the Philidor and Lucena positions. Philidor showed a
draw, with the defending King having control of the Queening square. The
defender keeps out the attacking King. White can make progress only by
pushing the pawn, the Black shows a draw by sending the Rook a long way
away and playing a flurry of checks.

The ‘Lucena’ position, shown by Salvio and attributed to Sciapino, is a
win for the attacking side. With the defending King cut off by at least
two files, the defending Rook has to play the flurry of checks from
across the board. The attacker either makes an escape hatch for the
King, or ‘builds a bridge’ so that the Rook can step in at the right
moment.

Please note: sending the Rook a long way away. If the defending Rook is
too close to the attacking King, the King will be able to chase the Rook
away all by itself.

This is the idea of checking distance, and will help us understand less
clear-cut positions.

We all know that the Rook belongs behind the pawn, but that’s not true
for every position. For example, in this one, the defending Rook has
checking distance only in front of the pawn.

[White Cheron, Andre]

How does this help us understand the Teignmouth position? Well, the
defending King doesn’t have access to the Queening square, but there may
be checking distance from the side.

Now, when Bill and I were playing around with this position, I managed
to persuade him that it might be a draw, because he couldn’t escape the
flurry of checks, because he didn’t approach the Rook with his King. I
didn’t know the theoretical result, but I did know the best thing to
try.

It’s very well worth your while to play out these positions against a
friend or a computer, so that if and when it turns up in one of your
games, you won’t hesitate to adopt the right approach.

A very useful online resource is this implementation of the Nalimov
tablebases:
http://www.k4it.de/index.php
which give the theoretical best obtainable result from any given simple position.

Studies and problems

[This simple introduction is probably redundant because there are
now some good problems and studies sites.

  Characters that clearly like problems include the folks
at Chess
Cafe
, Cornel Pacurar
(who has a links page),
Ian
Gent
, Vincent
van der Bilt
and Manolis Stratakis.
Nandakumar Sankaran has an Endgame
Studies
as does IM Igor
Khmelnitsky
. Shaihin very kindly sent me not one but two studies laid out in beautiful LaTeX
PostScript.

  As ever, I wrote this piece for our juniors.]

 


Chess problems

“It is quite a three-pipe problem”. – SHERLOCK HOLMES

“A chess problem is an exercise in pure mathematics” –
G.H. HARDY

You may have often seen chess puzzles with the challenge of
‘White to play and mate in two’. Well, the area of chess problems
of this sort is really a whole extra chess continent, with strange
customs and unusual wildlife. A well-formed problem is a composed
position with a single, often surprising, solution. Many different
sorts of problems exist, and most of them look as though they
really have been composed – that is, nothing like that would happen
in a real game.

  Problem thinking is a bit different to chess thinking,
but the same principles apply – once you’ve seen a pattern (theme)
you can find it more easily in other settings.

 

-+-+-+-+
+-+-+-+-
-X-+-+-B
+x+-X-+-
-+-+j+p+
+p+-+s+-
p+-+-Pb+
K-+r+-+-

The Indian Problem: White to play and mate in 4
(Rev. HA Loveday, 1845)

 

SOLUTION

1. Kb1 b4

2. Bc1 b5

3.Rd2 Kf4

4. Rd4 mate

The problem is ‘cooked‘ by 1. Bh1
or 1. Rd8, but the solution is essentially the same.

  This I believe was very difficult to solve at the time,
becuase it was a new type of problem; now, the “Indian theme” is
well-known to solvers.

  Want to try some? Here is a three-mover, a retrograde
problem and a ‘fairy chess’ helpmate problem (helpmate = Black to
play and help White mate!). They are all pretty tough for
beginners, so you might just prefer to play over and enjoy the
solutions rather than try to solve them.

  In the Fairy Chess problem below, there is a new type of
piece on the board at c7 – the CamelHopper. This attacks the
squares just one more square distant than a N does – that is, on
b4,d4,f6 and f8. But it moves only by moving over an attacked piece
and moving the same distance the other side – so, if the bQ moved
to d4 white could play 1 CHe1, leaving the Qd4. If the bQ was on
f8, CH couldn’t moveto “i9”, and in fact can’t move in the
diagrammed position. Clue: how to control b1?


-+-+-N-J
+-+-+pXx
-+-+-+-+
+-+-+-+-
-+q+-+x+
+-+-+-+-
-+-+-+-+
L-+-+-+k

  (a) S.Loyd 1869

The Lovechase: Black invalidation:
White non-permission.
: Mate in 3


-+-+-+-+
+-+-+-+-
-+-+-+-+
+t+l+-+-
b+-+-+-+
+-+-+-+-
-+-+-+-+
+-+j+-+-

  (b) R Smullyan ’57

Where is the wK?

 


-+-+-+k+
+-C-+-+-
-+-+-+-+
+-+-+-+-
-+n+-+-+
+-+-+-+-
xD-+-+-+
J-+-+-+-

(c) Lewis 1929. Camelhopper on c7: helpmate in 5.

 


ANSWERS

  (a) 1 Qe4 fails to 1…g6. Sadly, 1 Ng6+ hxg6; 2 Qc8+
isn’t fast enough, and 1 Qc8 (threat 2 Ng6++) fails to 1…h6. The
retreat 1. Qf1! is the key – Now, if 1…Bb2; 2 Qb1, or if 1…Bc3
or 1…Bd4; 2 Qd3, or if 1…Be5 or 1…Bf6; 2 Qf5, or if 1…g6; 2
Qxa1#.

  (b) K is on c3: the previous moves must have been: 1
Pc2-c4, Pb4xc3e.p.+; 2 Kb3xc3+. Clever stuff! Smullyan has
published two or three books of these logical teasers.

  (c) The CH can only hit black squares, so the N must hit
b1, and so the CH must deliver the mate. So, 1…Qd4; 2 CHe1, Qf4;
3 CHg7, Qd6; 4 CHa5, Qd4; 5 CHg3, Qb2; 6 Nd2#. The N moving to d2
also allows the CH to mate the Ka1. Neat, eh?

  There are magazine and societies devoted to these sorts
of things, and a World Solving Championship is hotly contested each
year. Two GMs who excel at solving are John Nunn and Jon
Mestel.

 

Problem contacts:

The Problemist

British Chess Problem Society

  Secretary CAH Russ

  76 Albany Drive

  Herne Bay

  KENT CT6 8JS

Problem Observer


Chess studies

“If a garden is nature perfected, then a study might be
described as a game of chess perfected” – .

 

  We have already met a study: Saavedra’s position given
under 4.4.3.2 [ http://en.wikipedia.org/wiki/Saavedra_position#History ] is a study, that is, a composed position with a
realistic feel to it and with reduced material, and there are other
studies in this section. Studies are oten referred to a ‘endgame
studies’, and the British study magazine is in fact called
EG. As well as the problem magazines above, the
BCM publishes a study column each month, and many
other fine examples are to be found in Chernev’s Practical
Chess Endings
. Some of the best-known studies are to be
found in The Complete Chess Addict, including the
most famous of all – this one of Reti’s (1922):

 

-+-+-+-K
+-+-+-+-
j+p+-+-+
+-+-+-+x
-+-+-+-+
+-+-+-+-
-+-+-+-+
+-+-+-+-

White to play and draw. A seeming impossibility: the Pc6
will be caught by the bKa6 as soon as it moves, and the Ph5 can’t
be caught by the king. Watch…

1 Kg7 h4; 2 Kf6 (now 2…h4 allows 3
Ke7, h3; 4 c7, Kb7; 5 Kd7, so..) 2…Kb6; 3 Ke5, Kxc6; 4
Kf4
and draws!

  With minimum material, this is a perfect example of a
study – it could have arisen in a game, there is no demand to ‘win
in two moves’, and the play has a charming and surprising ‘point’
to it. One more (Joseph, 1922):

 

-J-K-+-+
+x+-+-+p
-P-+-+-+
+-+-+-+-
-+-+-+-+
+-+-+-+-
x+-+-+-+
+-+-+-+-

Stalemates and perpetual checks loom: 1 h8=Q
threatens mate by e.g. Kd7 but 1…a1=Q and if 2
Qxa1 stalemate, so 2 Qg8, Qa2!; 3 Qe8, Qa4; 4 Qe5+, Ka8; 5
Qh8
and wins – triangulation by the Q(!) to get the bK
onto a8.

 

Curios

A related field is not exactly study composition but the challenge
of composing to a particular task: for example, from the Usenet
newsgroups:


From: Fred Galvin
<galvin@math.ukans.edu>Newsgroups:
sci.math,rec.games.chess.misc
Subject: Re: Strange Question?
Date: Thu, 12 Dec 1996 15:12:07 -0600
From: Fred Galvin
<galvin@math.ukans.edu>

Organization: University of Kansas Computing
Services

On Wed, 11 Dec 1996, Bob Silverman wrote:

 
> Consider the set of all legally reachable positions in
chess.
> Which position(s) give the largest number of different 1
move
> checkmates? What is that number?

The following positions were the record holders as of January 1,
1969, according to Anthony Dickins, A Guide to Fairy
Chess
, Second Edition (The Q Press, Richmond,
Surrey, 1969); as far as I know, none of them has been *proved* to
be best possible; I don’t know of any published upper bounds.

  Legal position, no promoted men, 47 mates (J. C.
West, 1880
):

 
4N1r1/P2PK2P/8/1P1kBQ2/2R5/3N4/B3P3/3R4

 

-+-+n+t+
P-+pK-+p
-+-+-+-+
+p+jBq+-
-+r+-+-+
+-+n+-+-
b+-+p+-+
+-+r+-+-


Legal position with promoted men, 105 mates (N. Petrovic,
1947
):

 
1B1Q1Q2/2R5/pQ4QN/RB2k3/1Q5Q/N4Q2/K2Q4/6Q1

 

-B-Q-Q-+
+-R-+-+-
xQ-+-+qN
Rb+-J-+-
-Q-+-+-Q
N-+-+q+-
k+-Q-+-+
+-+-+-Q-


Illegal position, 143 mates (N. Petrovic, 1947):

 
QnQQ1QQ1/PQ1Q3Q/QQ4QQ/4k3/QQ4QQ/Q6Q/Q2Q1Q2/1QQQ1QQQ

 

qSqQ-Qq+
Pq+q+-+q
qQ-+-+qQ
+-+-J-+-
qQ-+-+qQ
Q-+-+-+q
q+-Q-Q-+
+qQq+qQq

Middlegame endings and endgame openings

What is an endgame, and what is a queenless middlegame? I’ll look at a couple of the latter, then a game of mine which moved from one into the other. Lastly, I include some examples of lines to practice with.

Anon – Barcza (Debrecen) 1934

  1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nf3 Bg4 5. Nc3 ? 5… Bxf3 6. Nxd5 Bxd1 7. Nxc7+ Kd7 8. Nxa8 Bxc2 9. Bf4 e5 10. dxe5 Bb4+

The key themes of this position: rapid development, open lines, exposed king and giving up material or development – have little to do with the ending (pawn majority, rook on the seventh, active king, etc.)

  1. Ke2 ?

[11. Bd2 Bxd2+ 12. Kxd2 Bf5 with about equal material]

11… Nge7 12. Nc7 Nd4+ 13. Ke3 Nef5# 0-1

Hubner – Benko (Hungary) 1976 [Mednis]

  1. d4 g6 2. c4 d6 3. Nc3 Bg7 4. e4 e5 5. dxe5 dxe5 6. Qxd8+ Kxd8

A more complex queenless middlegame in modern master play

  1. f4 Nd7 8. Nf3 c6 9. Be2 f6 10. O-O Ke8 11. g3 Nh6 12. Kg2 Nf7 13. Be3 Bf8 14. Rad1 b6 15. a3 Be7 16. Ne1 Bc5 ?!

Black was afraid of Nd3 and; b4

  1. Nc2 Bxe3 18. Nxe3 h5 19. b4 Bb7 20. Kg1 Rd8 21. h4 Nf8 22. c5

White is better developed and starts to open lines – again, classic middlegame ideas, but not so much in the ending when direct attacks have little chance of success.

22… Rxd1 23. Bxd1 bxc5 24. Bb3 Nd7

[24…cxb4 25. axb4 and Rd1]

  1. Rd1 Bc8 26. b5

still working for open lines

26… cxb5 27. Nxb5 exf4 28. gxf4 Nb6 29. Nxa7 Bb7 30. Nb5 Ke7 ?

[30… Bxe4 31. Bxf7+ Kxf7 32. Nd6+]

[30… Bc6]

  1. Bxf7 Kxf7 32. Nd6+ Ke7 33. Nxb7 Ra8 34. Nxc5 Rxa3 35. Kf2 Rc3 36. Rb1 1-0

Regis,D – Dobber,P (Paignton #3)

  1. e4 d6 2. d4 e5 3. dxe5

[3. Nf3 of course transposes to the Philidor, but I thought the text was critical]

3… dxe5 4. Qxd8+ Kxd8 5. Bc4 f6 6. Be3 c6

[6… Nd7 ! 7. Nc3 Bc5 this idea my opponent showed me the following day; I think it equalises 8. Bxc5 Nxc5 9. O-O-O+ Nd7 10. f4 exf4]

  1. Nc3 Kc7 8. O-O-O Nd7 9. f4 Bb4 10. Nf3 Ne7 11. fxe5 fxe5 12. Rhf1 Ng6

White is better mobilised but needs a breakthrough. The next phase shows White trying various ideas and angles …

  1. Ng5

[13. h4 h5 14. Bf7 Ne7 15. Be6 Bxc3 16. bxc3 Nf6 17. Bxc8 Raxc8 18. Nxe5 Rcd8]

13… Nf6 14. Bf7

[14. Nf7 Rf8 15. Bg5 Bxc3 16. Bxf6 gxf6 17. bxc3 Bg4 18. Rd2 Nf4 19. g3 Be2 20. Bxe2 Nxe2+ 21. Rxe2 Rxf7 22. Ref2 Raf8 23. g4 h6]

14… Ne7 15. Be6

[15. Ne6+ Bxe6 16. Bxe6 was worth a punt – next game!]

15… h6 16. Bxc8 Raxc8

[16… hxg5 17. Be6 Bxc3 18. bxc3 Rae8 19. Bxg5 Rxh2 20. Bxf6 gxf6 21. Rd7+ Kb6 22. Bf7]

  1. Nf7 Ng4 18. Bg1 Rhf8 19. h3 Nf6 20. Nxe5 Bxc3 21. bxc3 Rcd8

White has a pawn but it is very vulnerable

  1. Bc5

[22. Rxd8 Rxd8 23. Nf7 is interesting: 23… Rd7 24. Bh2+ Kb6 25. e5 Nfd5 26. Kb2 Ne3]

22… Rxd1+ 23. Rxd1 Re8

how to keep the pawn?

  1. Bd6+ Kb6 25. Nc4+ Ka6 26. Rd4 Ng6 27. e5 Nd5 28. Rg4

determined but inadequate: …b5 will bring the house down

28… Re6 29. Kd2 b5 30. Nb2 Nxe5 31. Bxe5 Rxe5 32. Rxg7

32… Rg5

Knight endings are harder to draw than rook endings but Black hoped to sac the knight for the K-side pawns and blockade on the Queen’s-side

[32… Nf4 draws, I’m pretty sure 33. Rf7 Nxg2 34. Rf6 Rh5 35. Rxc6+ Kb7 36. Rg6 Nf4 37. Rg7+ Kb6 may even be better for Black]

  1. Rxg5 hxg5 34. g3 Nf6 35. h4 Ne4+ 36. Kd3 Nxg3 37. hxg5 Kb6

some careful footwork secures the win

  1. c4 Kc5 39. cxb5 cxb5 40. g6 Nh5 41. Ke4 Kb4

[41… Kd6 42. Kf5 Ke7 43. Kg5 Ng7 44. Nd3 Ne6+ 45. Kh6 Kf6 46. Nf4]

  1. Nd3+ Kc3 43. Nf4 Nf6+ 44. Ke5 Ng8

[44… Ng4+ 45. Kf5 Nh6+ 46. Kg5 Ng8 47. Nd5+ Kxc2 48. Nf6 Ne7 49. g7 Kb2 50. Nd5 Ng8 51. Kg6 a5 52. Kh7 b4 53. Kxg8 b3 54. axb3 Kxb3]

  1. Nd5+ Kxc2

[45… Kb2 saves a move, but is still too late]

  1. Nf6 Ne7

[46… Nh6 47. Kf4 Kb2 48. Kg5 Ng8 49. Nxg8 a5 50. Nf6]

  1. g7 1-0

Endgame Openings

King’s Indian Defence

  1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5

English Opening, Andersson-Book line

  1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. e4 Nxc3 6. dxc3 Qxd1+ 7. Kxd1

English Opening, Double Fianchetto

  1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d5 9. Nxd5 Nxd5 10. Bxg7 Kxg7 11. cxd5 Qxd5 12. d4 cxd4 13. Qxd4+ Qxd4 14. Nxd4 Bxg2 15. Kxg2

French Defence, Tarrasch Variation

  1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Bd7 6. Qe2+ Qe7 7. Bxd7+ Nxd7 8. dxc5 Qxe2+ 9. Nxe2 Bxc5

Sicilian Defence, Accelerated Dragon

  1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8. Bg5 Bg7 9. f3 O-O 10. Qd2 Be6 11. Rc1 Qa5 12. b3 Rfc8 13. Be2 a6 14. Na4 Qxd2+ 15. Kxd2

Sicilian Defence, Dragon Variation

  1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. g4 Nxd4 10. Bxd4 Be6 11. O-O-O Qa5 12. Kb1 Rfc8 13. a3 Rab8 14. g5 Nh5 15. Nd5 Qxd2 16. Rxd2 Bxd5 17. exd5

Modern Defence, Averbakh Variation

  1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 e5 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. f4

Petroff Defence, Lasker Variation

  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Nbd7 8. Nc3 Qxe2+ 9. Bxe2

 

Ruy Lopez Exchange Variation

  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4
  1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 exd4 7. Nxd4 c5 8. Nb3 Qxd1 9. Rxd1