Starting Position
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BLACK TO MOVE
(White wins in all lines. )
This is from the (new) book ... "Dvoretsky's Endgame Manual," by IM Mark Dvoretsky. (2003)
The starting position is
Diagram # 13-3,
Chapter # 13, page # 248. It is {strangely} Black to move in the position given just above.
(White: King on the c5-square, WQ on a1; Black: King on the e3-square,
BR on f4.)
1...Rf8!?;
(Probably - '?!')
Maybe not the best move ... which is probably why Dvoretsky awards the '!?' appellation.
Fritz 8.0
(Championship Edition) recommends 1...Rf5+; while the
program, "Tablebase 3.2" which manages the new
(5-disk DVD) set of the NALIMOV
TABLE-BASES; recommends that Black play (instead)
1...Kd3. ('!')
[ The best continuation probably is:
>/=
1...Kd3!; 2.Qb1+ Ke2; 3.Qc2+ Ke3;
4.Kd5 Rg4;
5.Qc3+ Kf2; 6.Qd3 Rh4; 7.Qd1!,
("+/-") {Diag?}
when the best Black can do is to get mated in 21 more moves.
]
2.Qd4+! Ke2;
3.Qg4+ Ke3; 4.Qe6+ Kf3; 5.Kd4! Rd8+; 6.Kc3!, (best)
{Reaching} A modified form of ... ... ... "The Goldsby
Position."
[ 6.Ke5!? ]
6...Rf8[];
(forced)
Black had to meet the threat of 7.Qf6+, forking the two Black pieces and winning the Black Rook.
7.Qc6+! Kg4!?;
8.Qg6+ Kf3; 9.Qh5+! Kg3; 10.Kd3 Rf3+;
11.Ke4!?, (hmmm)
This is OK ... but according to the computer ... it might add a move to the overall solution.
[ >/= 11.Ke2!, "+/-" ]
11...Rf4+;
12.Ke3 Rg4; 13.Qe5+ Kg2; 14.Ke2!, (Z)
{See the diagram given - just below.}
This excellent play helps - in a big way - to run Black out of moves.
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Control of key squares, Tempo and Zugzwang ... are a few of the weapons that White must use to win this endgame.
[ Not as effective is: 14.Qf5!? ]
14...Rg3[];
This is pretty much forced.
[ Of course Black cannot play:
</=
14...Ra4?; ('??')
15.Qd5+ Kg3; 16.Qb3+,
"+/-"
wins the Black Rook. ]
15.Qh5! Kg1?;
(hmmm)
This is clearly bad ... and shortens the solution by one or two moves.
[ White can reach ... "The Goldsby Position,"
and win with the (most) efficient:
>/= 15...Ra3!; 16.Qd5+! Kh3;
17.Kf2!, ("+/-") {Diagram?}
when Black is mated in around
10-11 moves ... at the very most. ]
16.Qd5,
(Zugzwang again.)
('!') {Diagram?}
"Quiet moves that limit the mobility of the enemy pieces or create a zugzwang situation
are often much more effective than checks."
- IM Mark Dvoretsky
[ One student chose:
</= 16.Qb5?,
{D?}
for White in this position.
(White still
wins, but this move adds many moves to the solution.) ]
The rest of these moves require
no comment ... and are probably best play (for both sides).
16...Rg6;
17.Qd4+ Kh2;
18.Qf4+ Kg1; 19.Kf3 Rg2; 20.Qh4!, ("+/-")
White has reached ... "The Philidor Position," which is a win for the stronger side.
Trainer Dvoretsky obviously used a computer to find these moves ...
most of the plays in this analysis are completely unlike anything that a human would be likely to play.
Copyright (c) A.J. Goldsby, 2005. All rights reserved.
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(Page posted on my web-site, Monday; June 20th, 2005.)
(Page last up-dated on: 06/20/2005. Last edit or save on: 07/05/2007 .)
Copyright, (c) LM A.J. Goldsby I
Copyright © A.J. Goldsby,
1990-2006.
Copyright © A.J. Goldsby, 2007. All rights reserved.
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