(UTC)
Latest Updates:
  ChessPub Forum › Other › Endgames › Rook Endings › Study-like draw in Lyskov-Selezniev
(Moderator: trw)
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
Topic Tools
Normal Topic Study-like draw in Lyskov-Selezniev (Read 6326 times)
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #9 - 06/11/12 at 13:15:06
Post Tools
Levenfish Smyslov n. 244.pgn
  
Levenfish_Smyslov_n__244.pgn ( 0 KB | Downloads )
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #8 - 06/11/12 at 13:13:33
Post Tools
Part 4

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Levenfish/Smyslov n. 244

Levenfish/Smyslov evaluate this position correctly as drawn. „The pressure on f-pawn ties down the White pieces. The Black rook could also be at f6 or f7“. I think that it is hardly possible to find a square for the Black rook which would make black’s position losing (except of course when the rook stands en prise or on h6).   

1.Rb5 Rf8 2.Rb3 Rf4 3.Kd4

1) 3…g4 4.fxg4 Rxg4 5.Rf3 Rg1 6.e5 Ra1=. 

2) 3...Rf8 

Levenfish/Smyslov warn against this move because of the line 4.Kd5 Rd8+ 5.Ke6 Re8+ 6.Kd7 Kf7 7.Rb5. 

But even this final position is easily drawn. 

7...Re7+

7...Rg8?! 8.Rc5 Kg6 9.Rc6+ Kg7 10.e5 Ra8 (10...Rf8 11.e6 Ra8!) 11.e6 Kf6 12.Rc7 Kg7=. 

8.Kd6 g4 9.Rf5+ Ke8 10.fxg4 Rxe4=.  

D. 8

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Levenfish/Smyslov n. 245

In this diagram all the pieces are moved up the board one rank. According to Levenfish/Smyslov this makes the Black`s position losing. But in my opinion Black holds but accurate play is required.

I. 1...Rb8? 

Passive defence is hopeless here. 

2.Ra7+ Kf8 3.e6+- followed by 4.Rf7+ Kg8 5.Rd7 -- 6.Rd5 -- 7.Ke5 (Levenfish/Smyslov). 

II. 1...Rf5?

This move of Kevenfish/Smyslov also loses because it allows White to drive Black's king onto the back rank.

2.Ra7+ Kg8

2...Kf8 3.e6 Rf6 (3...Rb5 4.Rd7 Ra5 5.Rd5 Ra7 6.Ke5 Ke7 7.Rd7+) 4.Ke5 Rf5+ 5.Kd6 Rxf4 6.Ra8++-.  

3.e6

Black is defenceless. White drives easily the Black rook from the 5 rank and advances with his king. 

3…Kf8 4.Rb7 Ra5 5.Rf7+ Kg8 6.Rd7 Kf8 7.Rd5 Ra4+ 8.Ke5 Ke7 9.Rd7+ Kf8 10.Rd4+-.  

III. 1...Rf7!

The only move which holds – Black maintains his king’s good position on the 7. rank.   

2.e6 Rb7 3.Ke5 Rb5+!

This check on Black' s third rank is the only resource which enables Black to draw. If the White rook were on a5, this position would be winning for White (see the next D. 8).  

4.Kd6 Kf6! 5.e7 Kf7 6.Kc6 Rb8= 

Or 6...Rb1=. 

D. 8 W

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

1.e6 Rc7 2.Ke5 Rb7 3.Rd5 Rb4 4.Rd8 Rb5+ 5.Kd6 Rb6+ 6.Kd7 Rb7+ 7.Kc6+-  

Black to play the position is drawn. 

D 8 B

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

1...Rb7 2.Kd5

2.Kf3 Rb3+ (2...Kf7? 3.Kg4 Rb1 4.Ra7++- Kopayev n. 644; 2...Rb1 3.Ra7+ Kf8!=) 3.Kg4 Re3 4.Ra7+ Kh6=. 

2...Rb4 

Or 2...Kf7 or 2...Re7=. 

3.Kd6 Rd4+

Not 3...Rxf4? 4.Ra7++-.  
3...Rb6+ 4.Kc7 Rb4=. 

4.Ke7 Rxf4=.
  
Levenfish_Smyslov_n__245.pgn ( 0 KB | Downloads )
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #7 - 06/01/12 at 16:37:53
Post Tools
Part 3

D. 5

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Aronin - Konstantinopolsky
Moscow 1944

Black to move 

Here the White pawns are less far advanced, but the stronger side again has chances of success. Kopayev has analysed this position and showed the right way to draw. But his analysis contains some flaws underestimating the Black’s other defensive resources. 

I. 1...Rb1

D. 5.1

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

This is Kopayev’s move which is the most natural defence. Black is switching his rook to the rear of the pawns. 

2.Rc6+ Kf7 3.e5 Re1 4.Rc7+ Ke6 5.Rg7 Rg1!=.

Black can draw in the same way also by 1…Rb2. 

II. Konstantinopolsky played 1...Rb3. 

Although this move doesn't lose, it certainly creates more difficulties for Black than in case of 1...Rb1. According to Kopayev this move loses. 

2.e5+ 

D. 5.2

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

1) 2…Ke6?+-

Kopayev made no comment on this move of Kontantinopolsky, which throws away the win. 

3.Rc6+ Kf7 4.Rf6+ Kg7 5.Kg5 Re3 6.Rxg6+ Kh7 7.Rh6+ Kg7 8.f4 Rg3+ 9.Kh4 Rg2 10.Rh5 Kf7 11.Rg5 Re2 12.Kg4, and White soon won.  

2) 2...Kg7!

D. 5.3

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

3.Rc7+ Kh6 4.e6

4.Ke4 g5 5.Rc6+ Kg7 6.Rd6 Rb4+! (6...Kf7? 7.Rd3 Rb1 8.Kf5+-) 7.Kd5 g4= (7...Rf4=)

4…g5+ 5.Ke4 

5.Kf5 Rxf3+=.  

5...Kg6=. White can not improve his position. 

III. 1...Ra6 

Kopayev criticizes also this move for throwing away the draw. 

2.e5+ 

Kopayev considers only 2…Kf7? (1) which indeed loses. Black can draw by 2…Ke6! (2).

1) 2…Kf7? 3.Kg5 Ra3

It is late to play 3...Ra1. 4.Rc7+ Ke6 5.f4 transposes into Kopayev n. 644, D. 1.8 after 3.Ra6+ Kf7 4.Ra7+ Ke6 5.Kg5.  

4.Rc7+ Ke6

D. 5.4

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

5.Rc6+ Kxe5 6.f4+ Ke4 7.Re6+ 

But not 7.Rc4+? Kd5= (7...Kd3? 8.Rc6+-).  

7…Kd5

7...Kf3 8.Rxg6+-.

8.Rxg6+-.

White wins here thanks to the bad position of the Black rook on a3. Were the rook on a1, Black would draw (cf. D. 5.5). 

2) 2…Ke6! 3.Kg5 Ra1 4.f4

With Black rook on a1 (not on a3) the move 4.Rc6+ does not help. 

D. 5.5

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

4. Rc6+ Kxe5 5. f4+ Ke4 6. Re6+ (not 6.Rc4+ because of 6…Kd5 or 6...Kd3=) 6…Kf3 7. Rxg6 Rg1+. With the rook on a3 Black has no check from g-file (cf. D. 5.4). If 6.Rc4+ then 6…Kd5 or 6…Kd3 gaining a vital tempo (cf. D. 6.2). 

4…Rg1+ 5.Kh6 Kf5 6.Kg7 Re1 7.Kf7 Kxf4=. 

The line III. 1...Ra6 shows that with the White rook on c5 the position is drawn even if White were to play. 

Back to D. 5.

White to play 

1.e5+ Ke6!

Not 1...Kf7? 2.Kg5! Rb1 3.Rc7+! Ke6 4.f4! +-  

2.Kg5 = transposes into the above line.  

D. 6

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

The only difference between this diagram and D. 5 is that the white rook is at a considerable distance from
the Black king. If White is to move this makes a difference. 

1.e5+ Ke6

1…Kf7 loses in the same way as in the previous diagram, White to move, after 1.e5+ Kf7.  

2.Kg5 Rb1

D. 6.1

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

3.Ra6+! 

Sufficient checking distance makes all the difference!  Cf. D. 5.5.

3…Kxe5 4.f4+ Ke4

D. 6. 2

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

5.Ra4+ Kd5

5...Kf3 6.Kg6+-.

6.Kxg6+- .  
  
To be continued
  
Aronin-Konstantinopolsky.pgn ( 1 KB | Downloads )
Back to top
 
IP Logged
 
micawber
God Member
*****
Offline


like many sneaks and skunks
in history he's a poet

Posts: 852
Location: Netherlands
Joined: 09/07/05
Gender: Male
Re: Study-like draw in Lyskov-Selezniev
Reply #6 - 05/31/12 at 21:54:12
Post Tools
Thx Poghesyan, for another impressive piece of analysis.
I have only skipped to the lines, and definitely need more time to digest all of it.
  
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #5 - 05/31/12 at 18:15:02
Post Tools
Harandi-Vaganian (analysis Kasparov).pgn
  
Harandi-Vaganian__analysis_Kasparov_.pgn ( 1 KB | Downloads )
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #4 - 05/31/12 at 18:14:21
Post Tools
Lyskov-Selezniev.pgn
  
Lyskov-Selezniev_W.pgn ( 0 KB | Downloads )
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #3 - 05/31/12 at 18:13:38
Post Tools
Part 2

As we have seen Lyskov-Selezniev is drawn Black to play. Let us take the position with White to move. 

D. 2

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

1.e5+

1.Ra7 Rb1 2.e5+ Ke6 3.Kg5+- see D. 1.8 after 3.Ra6+ Kf7 4.Ra7+ Ke6 5.Kg5.

1...Ke6

1...Ke7 2.Ra7+ Kf8 3.Rd7 Ke8 4.Rd6+-; 
1...Kg7 2.Kg5+-. 

2.Kg5 Kf7 3.Ra7+ Kg8 4.Rd7 -- 5.Rd6+-. 

We shall now consider 2 examples where the correct evaluation of Lyskov-Selezniev plays a great role. 

D. 3

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

de la Villa-Nunn 1997 (rev. co.l)

1.Ke4 Ra5 2.Rd5 Ra3 3.Rc5 Ke6 4.Rc6+ Kf7 5.Kd4 Ra5 6.e4 Ra2 7.e5 Ra4+ 8.Rc4

Nunn points out that the stronger side has now two possible plans. One is to get his king to d5 or d6 and then check on the second rank to force White's king back to the first rank. The other is to attack the g-pawn directly by ... Kf3-g4-g5. Neither plan should succeed against correct defence (Nunn).  

8...Ra7 9.Ke4 Ke7?!

9...Ra1is safer, so as to give checks on the first rank if White plays his king to g4 (Nunn). 

10.Rc6

D. 3.1

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

I. 10…Ra4+?

This is the losing move, allowing Black's king to g4 and then g5 (Nunn). 

11.Kf3 Kf7 12.Rc7+ Kf8

12...Ke6 13.Rg7 Kf5 14.Rf7+ Ke6 15.Rf6++-

13.Kg4 Rb4 14.Kg5 1–0  

II. 10...Kf7! (Nunn)

D. 3.2

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

1) 11.Kd5

White tries the first plan. 

11…Rd7+ 12.Rd6 Ra7 13.Rf6+ Kg7 14.Rc6 Kf7 15.Kd6 Rb7 16.Ra6 Re7

White's rook appears passively placed, but Black cannot exploit it (Nunn). 

17.Ra8 Re6+ 18.Kd5 Re7 19.Ke4 Rb7 20.Kf3 Rb1= (Nunn). 

2) 11.Kf3

White tries the second plan. 

a) 11…Ra1 12.Rf6+ Kg7 13.Ke4 Ra4+ 14.Kd5 Ra5+= (Nunn). 

b) 11...Ra3+

Nunn gives 11...Ra3+ a question mark and considers the position after 11...Ra3+ winning for White. Even though 11...Ra3+ is adequate to draw, 11…Ra1 is certainly the best defence. 
 
12.Kg4

D. 3.3

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Nunn considers here only 12…Ra1 which is actually a decisive mistake. 13.Rc7+ Ke6 14.Kg5 Rg1+ 15.Kh6 Rg4 16.Rc6+ Ke7 17.Rf6 Ke8 18.Kg7 Ke7 19.Rf7+ Ke8 20.e6+- (Nunn).  

As we already know from Lyskov-Selezniev Black draws by 12...Kg7!= (See D. 1.1, the line 4) 3...Rb3?!= 4.Ra7+ Kh6! 5.e6 Rb8!)

13.Rc7+ 

13.Kg5 Rg3+=

13...Kh6 14.e6 Ra8!= (See  D. 1.10 after 4…Rb8!!). 

D. 4

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

This position could have arisen in the game Harandi-Vaganian 1979 (rev. col.). According to Kasparov (ECE, n. 725) White is winning but Black can save the position by the same method as in Lyskov-Selezniev. 

1.Ra4

Kasparov analyses only 1…Re5? (I) which loses. As we already know Black can draw by transferring his rook to the first rank - 1...Rb7 or 1...Rc7 (II). 1…Kg7 (III) also draws. 

I. 1…Re5? 2.f4 Rh5

2...Rb5 3.e5+ (Kasparov).
2...Re7 also loses: 3.Rb4 (not 3.e5+? Kg7! (3...Kf7? 4.Kg5 Re6 5.Ra7+ Kf8 6.Rd7 -- 7.Rd6+-) ) 3...Kf7 4.Kg5 Kg7 5.Ra4 Kf7 6.e5+-. 

D. 4.1 

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Kasparov suggests here two winning moves - 3.Ra6+ (a) and 3.e5+ (b) but 3.e5+ is in fact a result-changing mistake. White can win also by 3.f5 (c).  

a) 3.Ra6+ Kf7 4.f5 Rh6 5.Ra2 Kf6 6.e5+ Kxe5 7.Kg5+- (Kasparov).

b) 3.e5+? Kf7 

Black draws also by 3...Ke7=. 

4.Ra7+ Kf8 5.Kf3

D. 4.2

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

5…Rh4? 

This move of Kasparov throws away the draw. Black can draw by 5...Rh1 6.Ke4 Rh4! = or by 5...Rh3+6.Kf2= Rh2+ 7.Ke3 Rh3+ 8.Kd4 Rh4!=. 

6.Rb7?

Again a result-changing mistake in Kasparov`s analysis. Immediate 6.e6! wins easily: 6…Ke8 (6...Rh1 7.Rf7+ Ke8 8.Ke4+- transposes into the main line) 7.Rf7 Rh1 8.Ke4+- Transposition) 8...Rh5 (8...Re1+ 9.Kd5 Re2 10.Rg7+-) 9.Rf6 g5 10.f5 Rh1 11.Rg6 Rg1 12.Ke5+-

6...Kg8? 

The last error in the analysis of Kasparov. Black can draw now by 6...Rh1 or 6...Rh3+= .  

7.e6 Kf8 8.Rf7+ Kg8 9.Ke4 g5

9...Rh5 10.f5 gxf5+ 11.Ke5 (Kasparov).

10.Ke5 Rxf4

10...gxf4 also does not help - 11.Kf6 Rh6+ 12.Ke7+-. 

11.Rxf4 gxf4 12.Kd6+- (Kasparov). 

Back to D. 4.1

c) 3.f5 Rh6

3…Ke5 4.Ra6+-. 
3...Rh1 4.Ra6+ Kf7 5.fxg6++-. 

4.e5+!

Or 4.Ra6+ Kf7 5.Ra7+ Kf6 6.e5+ Kxe5 7.Kg5+-. 

4...Kxe5 5.Kg5 Rh5+

5...Rh1 6.fxg6+- or 6.Ra5++-.

6.Kxg6 Rh1 7.f6+-.

II. 1...Rb7 

Or 1...Rc7. 

2.f4 Rb1!= see Lyskov-Selezniev.

III. 1...Kg7 2.f4 Kh6!

Not 2...Rb7? 3.Kg5!+-. 

3.e5 Rb7 4.Ra6 Rb1 

Black can draw also by 4...Rb4 5.Kf3 Rb7! 6.Ke4 (6.f5 Kg5! 7.fxg6 (7.f6 Kf5=) 7...Kf5=) 6...Kg7! 7.Kd5 Kf7= (7...Re7= 8.Rc6 Kf7! 9.Rf6+ Kg7 10.Kd6 Ra7=) 8.Rf6+ Kg7 9.Rc6 Kf7= see analysis de la Villa-Nunn.  

5.f5

5.Kf3 Re1=.

5...Rg1+= 6.Kf4

6.Kh4 Rg5=.

6...Rf1+ 7.Ke4 Rxf5=.  

To be continued
  
de_la_Villa-Nunn__rev__col__.pgn ( 1 KB | Downloads )
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #2 - 05/29/12 at 18:28:56
Post Tools
Back to D. 1.3

C) 5...Ra1?! 6.Kg3!

6.Kf3 Rf1+transposes into D. 1.6 after 6…Rf1+. 
6.e6 Rg1+ 7.Kf3 Re1= (D. 1.5 reciprocal zugzwang). 

6...Rf1 7.Rf7

7.e6 g5=. 

D. 1.7

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

7…Re1! 8.Kf2 Re4! 9.Kf3 Re1! 10.Re7 Rf1+! 11.Ke4 g5! 12.fxg5+ 

12.Re6+ Kg7! 13.fxg5 Rg1! 14.Kf5 Rf1+!=

12...Kg6! 13.Kd5 Ra1 14.Ke6 Ra6+ 15.Kd7 Kxg5=. 

Back to D. 1.1

4) 3...Rb3?!= 4.Ra7+ Kh6! 5.e6 Rb8!=. See the main line D. 1.10 after 4…Rb8. 

5) 3...Rc1?!= 4.Ra7+ Kh6! 5.e6 Rc8!=. See the main line D. 1.10 after 4…Rb8.

Back to D. 1 after 1…Rb1.
 
II. 2.e5+

This is clearly the strongest move. 

1) Kopayev considers only 2...Ke6? which transposes into his position n. 644. 

D. 1.8

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

3.Ra6+ Kf7 4.Ra7+ Ke6 5.Kg5 Rg1+ 6.Kh6 Rg4 7.Ra6+ Ke7 8.Rf6 Kd7 9.Kh7 

9.Kg7 also wins but 9.Kh7 is simpler. Since this ending has been analysed correctly in the endgame litarature I will give here inly the main line of Kopayev. See for details the attached pgn-file (but note the mistakes of Seirawan in Winning Chess Endings, p. 107). 

9.Kh7 Ke8 10.Kg8 Ke7 11.Kg7 Ke8 12.Rf7 Kd8 13.Kf8 Rh4 14.e6 Rh8+ 15.Kg7 Rh4 16.Kxg6+-.

Back to D. 1.8.

2) 2...Kg7!

The only move to draw. 

D. 1.9

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

3.Ra7+ Kh6 4.e6

D.1.10

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Kopayev stopped his analyse here. He apparently supposed that White wins like in his main line after 2.Ra6+ ? Kg7 3.e5 Rf1?   4.Ra7+ Kh6 5.e6!
Speelman in his analysis of Harandi-Vaganian (BCE, p. 293) and Emms (Survival Guide, p. 60) continue here 4...Re1 5.e7 Re6 6.Kf3 Re1 7.Rb7 Re6 8.f5 gxf5 9.Rb6+- Speelman notes that 4…Rg1+ also loses. 

4...Rb8!! TN

This move has been overlooked by all analysts. 4…Rb8 saves the position! 

A) 5.Rf7 

D. 1.11

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

a) 5…Rb3!

The only move. 

6.e7 

6.Rd7 Rb8! =

6…Re3= 

b) 5...Rb1? 6.Kf3 Ra1 

6...Re1 7.e7+- reciprocal zugzwang.  

D. 1.12

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

7.Rd7

Not 7.e7? Re1!= reciprocal zugzwang 

7…Rf1+

7...Ra8 8.Ke4+- 

8.Ke4 Re1+ 9.Kd5+-

B) 5.Ra5 Rf8

But not 5...Re8? because of 6.f5!+- Kg7 7.Kg5 gxf5 8.Ra7++- (8.Kxf5?! Rf8+ 9.Ke5 Rb8 10.Ra7+ Kg6 11.Kd6 Kf6 12.Kd7 Kg7 13.Ke7+-) ) 

6.Re5

6.e7 Re8 7.Re5 Kg7 

6...Re8=. 

C) 5.Rd7 Rf8 

Again not 5...Re8? 6.f5 gxf5+ 7.Kxf5 Rf8+ 8.Ke5 Kg6 9.e7 Re8 10.Ke6+-. 
5...Ra8 or Rc8 6.f5 Ra4+ 7.Kf3 gxf5 8.e7 Re4=. 

6.Kf3 Re8= 

D) 5.e7 Re8! 6.f5 Kg7!=  

E) 5.Kf3 Re8! 6.Ra6 Kg7 7.Ke4 Kf6 8.Kd5 Rd8+=.   

To be continued
  
Lyskov-Selezniev.pgn ( 4 KB | Downloads )
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Re: Study-like draw in Lyskov-Selezniev
Reply #1 - 05/29/12 at 18:19:13
Post Tools
Back to D. 1.1

2) 3...Rg1+ 3.Kf3 Re1 = (Kopayev).

Cutting off the king and stopping the advance of the pawn. White can not improve his position. E.g. 4.Ra2 Kf7 5.Re2 Re2 6.Ke2 Ke6 7.Ke3 g5 =. 

Back to D. 1.1

3) 3...Re1

This draws as well but does not challenge the active position of the White king. 

D. 1.2

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

4.Ra7+ Kh6 5.Re7 

D. 1.3

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Accurate play is required now. 

A) 5…Re3 6.e6 

a) Now 6...Re1? would be a fatal error. After 7.Kf3! we have a position of reciprocal zugzwang.  

D. 1.4

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

7...g5

7...Rf1+ 8.Ke4 Re1+ (8...g5 9.f5+- (9.fxg5+ Kxg5 10.Rg7+ Kh6 11.Rg4 Kh5 12.Rf4+-) ) 9.Kd5 g5 10.f5 g4 11.f6 Rd1+ 12.Kc6 Rc1+ 13.Kd7 Rd1+ 14.Ke8 Ra1 15.Rd7+-.

8.f5+-. 

b) 6…Re4 7.Kf3 Re1= reciprocal zugzwang 

D. 1.5

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Now White is in zugzwang. 

8.Kf2 Re4! 9.Kf3 Re1 10.Re8 Kg7=.  

Back to D. 1.3

B) 5...Rg1+?!

This makes the draw more complicated. 

6.Kf3

D. 1.6

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

6…Rf1+! 

The only move to draw since 6...Re1? 7.e6 leads to the above position of reciprocal zugzwang. 

7.Ke3 g5! 8.fxg5+ Kg6! 

8...Kh5! also draws. But not 8...Kxg5? 9.Rg7+ Kh6 10.Rg2+-. 

9.Ke4 Re1+ 10.Kd5 Kxg5=.
  
Back to top
 
IP Logged
 
Poghosyan
Full Member
***
Offline


I Love ChessPublishing!

Posts: 143
Joined: 10/15/11
Study-like draw in Lyskov-Selezniev
05/29/12 at 18:11:31
Post Tools
The e- and f-pawns versus g-pawn formation is more favourable for the stronger side than f- and g-pawns versus h-pawn structure. The reason is simple: the king of the stronger side can use the h-file for attacking the pawn and penetrating into the kingside. The D. 1 is a key position for this kind of endgames.  

D. 1

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Lyskov-Selezniev (with col. rev.)
Moscow 1956

Since the analysis of Kopayev (1958)  the theory (Averbakh, Kasparov, Nunn, Speelman, Emms and many other analysts and players) unanimously claims that Black is lost. In fact, as I will try to prove, the position is drawn. The play contains some study-like finesses.  

1...Rb1!

The only move to draw. The rook should be able to harass the white king by checking from behind. Black can not afford just to wait: 1...Rc6 2.e5+ Ke6 3.Kg5+- (Kopayev) 3…Kf7 4.Ra7+ Kf8 5.Rd7, followed by Rd6 (Emms).   

I. 2.Ra6+?!

This leads to a draw but also 2.e5+ recommended by Kopayev fails to win. On the other side 2.e5+ of course poses Black greater problems.  

2...Kg7

2...Kf7 is also possible.  If 3.Ra7+ then 3…Ke6! =. 3.e5 Rg1+ 4.Kf3 Re1=. But not 3...Kf6? 4.e5+! Ke6 5.Kg5+- See D. 1.9 after 3.Ra6+ Kf7 4.Ra7+ Ke6 5.Kg5. 

3.e5   

D. 1.1

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
*

Lyskov played here 3…Rf1? which loses. Kopayev correctly suggested 3...Rg1+=. Black has also other moves to draw but they are clearly inferior to 3...Rg1+. Black can draw also by 3...Re1, 3...Rb3 and 3...Rc1=.  

1) 3…Rf1? 4.Ra7+ Kh6 5.e6! g5

5...Re1 is decisively met by now 6.e7 Re6 7.Kf3 Re1 8.Rb7 Re6 9.f5 gxf5 10.Rb6+- (Kopayev). 

6.Kf5!

This is what should have been played (Kopayev). Selezniev played 6.fxg5+ ? and the game went 6...Kg6 7.Re7 Re1 8.Re8 Re4+ 9.Kf3 Re1 10.Kf4 Re2 11.Kf3 Re1 12.Kf4 Re2 13.Rg8+ Kh7 14.Rf8 Rf2+ 15.Ke5 Rxf8 16.e7 Ra8 17.Ke6 Kg7 18.Kd7 Draw. It is very strange that Levenfish/Smyslov failed to notice the improvement of Kopayev 6.Kf5! from 1958. Even the last Russian edition of 1986 considers the 5…g5 as a drawing move and does not consider 6.Kf5! 

6...Rxf4+

6...gxf4 7.e7 Re1 8.Kf6 f3 9.Ra3+-

7.Ke5 Rf1 8.e7 Re1+ 9.Kf6 Rf1+ 10.Ke6 Re1+ 11.Kf7 Rf1+ 12.Kg8 Re1 13.Ra6+ Kh5 14.Kf7 Rxe7+ 15.Kxe7 g4 16.Kf6 g3 17.Kf5 Kh4

17...g2 or 18.Rg6+- and wins.

18.Rh6# (Kopayev). 

  
Back to top
 
IP Logged
 
Page Index Toggle Pages: 1
Topic Tools
‹ Previous Topic | Next Topic ›
Bookmarks: del.icio.us Digg Facebook Google Google+ Linked in reddit StumbleUpon Twitter Yahoo
 
  « Board Index ‹ Board Top  

ChessPub Forum » Powered by YaBB 2.6.12!
YaBB Forum Software © 2000-2025. All Rights Reserved.

Valid RSS Valid XHTML Valid CSS Powered by Perl Source Forge