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Hot Topic (More than 10 Replies) Capablanca-Yates (Hastings, 1930) (Read 19282 times)
Poghosyan V
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Re: Capablanca-Yates (Hastings, 1930)
Reply #21 - 04/16/14 at 08:17:14
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While analysing the endgame Capablanca-Yates and Capablanca-Duras in 2012 I found an alternative way to draw in a sideline of a similar position analysed by Kopayev in 1958. Since the new edition of ECE II under n. 1139 repeats his old analysis I have decided to put the correction in this thread.

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Kopayev 1958, n. 259

After 1...Kf8! 2.Rb4 h5 3.g5 the move 3...h4 does not lose as supposed by Kopayev and ECE II.

After 4.f5 Black draws both by 4...Rg3 as well as by 4...Kg7.
  

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Re: Capablanca-Yates (Hastings, 1930)
Reply #20 - 01/04/13 at 18:27:03
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While analysing once again the games Capablanca-Yates (1930) and Duras-Capablanca (1913) I have found several improvements on the analysis of Capablanca-Yates and some serious mistakes in the analysis of Duras-Capablanca (as well as in the associated games).

Because of serious result-changing errors in the analysis of Duras-Capablanca (1913) I have decided to create a new thread - “Duras-Capablanca revisited” where I will provide for a new analysis of that game beginning with the 60. move. The most important discovery in that ending is Capablanca’s move 3.f5 does not throw away the win (as suggested by Kopayev and also uncritically accepted by me). The new thread will cover the subjects dealt with in my postings nn. 5-9, 13-14, 17 and 19.

The most important improvement on Capablanca-Yates is in the position of D. 4 after 68.Re7.

D. 4 after 68.Re7

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In this position I have regarded only 68…Ra4. But Black has a stronger move which offers greater resistance - 68...Rc1.

D. 4a

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Switching the rook to the rear of pawns is here more dangerous than flank pressing.

I. 69.Kxe6!

The only move to win. 69.Rxe6? (2) draws.

D. 4a1

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1) 69...Rg1 70.f5!

Only giving up the g-pawn leads to win. After 70.Kf5 Rg2 or 70…Rg3 White can make no progress. It is interesting to note that in two practical games (Ljuboschitz-Conrady 2011 (rev. fl.) and Dory-Chereches 2008 (rev. col.) the defender failed to transfer his rook to g-file and lost (the attackers king was already on f5).

70…Rxg4 71.Re8+! Kh7 72.f6 Re4+ 73.Kd7! Rd4+ 74.Ke7 Re4+ 75.Kf8 Ra4 76.f7! Ra7 77.Rd8 Ra1 78.Ke8+-

2) 69...Kf8 70.Rd7 Rc4

70...Ke8 71.Rd4.

71.f5 Ke8 72.Rg7 Rc6+ 73.Ke5 Rc5+ 74.Kd6 Ra5 75.f6 Ra6+ 76.Ke5 Ra5+ 77.Ke6 Kf8 78.Rd7 Ra6+ 79.Rd6 Ra8 80.Rd5 Ke8 81.Kf5 Kf7 82.g5 hxg5 83.Rd7+ Ke8 84.Rh7 Ra1 85.Kg6+-.

2) 69.Rxe6?

This move seems natural but in fact it throws away the win.

D. 4a2

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a) 69...Kg7? 70.Re7+! Kf8 71.Kf6 Rc6+ 72.Re6 Rc4 73.Kf5 Rc5+

73...Kg7 74.Re7+ Kf8 75.Re4 Rc1 76.Kg6 Rc6+ 77.Kh5 Kg7 78.Re7+ Kg8 (78...Kf8 79.Rh7+-) 79.f5 Ra6 80.Re6+-. 

74.Kg6 Rc4 75.Rf6+ Ke7 76.Rf5+-. 

b) 69…h5!

D. 4a3

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Only this tactical blow saves Black.

70.g5

After 70.gxh5 we have a drawn rook ending with f- and h-pawns. 70…Kh7 or 70...Kg7 or 70...Kf7=.   

70...Re1+! 71.Kf6 Rxe6+ 72.Kxe6 h4=.
  

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Poghosyan
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Re: Capablanca-Yates (Hastings, 1930)
Reply #19 - 05/31/12 at 20:22:58
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Yes, of cource, 66.Rb3 is also winning, the ideas are same as in the line 65... Kg8 66.Rb3.
  
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Papageno
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Re: Capablanca-Yates (Hastings, 1930)
Reply #18 - 05/31/12 at 19:23:31
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at my #15: my analysis was a bit too clever indeed, in other words, not really good. thx micawber and Poghosyan for the correction.

One last remark (or question) of mine: After
61.Rb6?! Ra4! 62.Kf3 Ra3+ 63.Ke4 Ra4+ 64.Kf5 Rc4 65.Rb7 Kf8 the move 66.e6!! is flashy and nice. But from the practical player's point of view, 66.Rb3 (and following the same plans as in the line 65... Kg8 66.Rb3) is doing the job too and winning, isn't it?
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #17 - 05/31/12 at 17:35:24
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Thanks Papageno!
This is really an interesting idea but I also think that 66…Kf8 does not save the position.
One way has been already indicated by Micawber and I agree fully with his line. 
The second way can be 67.Rh3 forcing Black to defend the rook pawn. If 67…Kg7 then 68.Re3 transposing into the main line after 66…Kg7 67.Re3. So the only move is 67…Rc6. After 68.Rd3 (Threatening 69.Rd6) Black has no other choice than to bring his king back to g7. 
a) 68…Kg7 69. Ke4.
b) 68... Rc4 69. Rd8+ Kg7 70. Rd7 Rc6 71. Ke4
As to the endgames with f+g vs. h pawn which can show up around move 69 or 70 then I think that you are right and that the resulting endgames are indeed drawn.
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #16 - 05/31/12 at 14:53:10
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Without the benefit of deep analysis, I would suggest that 68.Re4 (iso Ke4) is an idea, intending to play Rd4/a4 and only then Ke4 so as to prevent f6:
68.Re4,Ra6 69.Rb4,Rc6 70.Ke4,f6? 71.Rb8+,Kf7 72.Rb7+,Kf8/g8 73.Kd5,Ra6 74.e6 +-
If Black continues his waiting tactics, White forces the win because f5 followed by Rb8+ becomes feasible.
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #15 - 05/31/12 at 14:18:41
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Poghosyan wrote on 05/12/12 at 13:38:07:
D. 1

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Capablanca played here [...]

61.Rb6?! 

Kopayev analysed this position first 1956 and believed that this was a dubious move which allows Black to provide for more resistance. But in the 1. edition of the Averbakh endgame handbook he changed his mind and tried to prove that Black can make a draw. In the 2. edition of the book Averbakh has just repeated Kopayev`s analysis after 61.Rb6 Ra4.    

61...Ra4!

Kopayev believed that this move saves Black. In the game Yates played 61...Re3? which is weaker.

62.Kf3 Ra3+ 63.Ke4 Ra4+ 64.Kf5 Rc4 65.Rb7

I. 65...Kf8 66.e6!!

II. 65...Kg8
3) 66.Rb3

Since the position of the king on f5 is useless White prepares to move back his king and bring his pawn to f5. In order to do that White should drive the Black rook from the forth rank.   

66…Kg7

Now we have transposed to the analysis of Kopayev of 1956 and 1958.

67.Re3 Rc6 68.Ke4 Rc4+ 69.Kf3 [...] +-


Have a question here, I quite like

66...Kf8!

Instead of 66...Kg7 Transposition to the analysis of Kopaev of 1956 and 1958. This is examined in posting #1, winning for White.

67.Re3

White continues his plan of fighting for the square e4 for his king as in line II. 3).
Unlike one move earlier, 67.e6 fxe6+ 68.Ke5 is no longer a problem for Black since the white rook left its most active position.

67...Rc6 68.Ke4 f6!

Last chance for Black to improve the structure. Here and in the next move, Black is ready to accept a number of f+g vs. h pawn positions, but with the rather passive white rook they all seem acceptable for Black.

BTW, with one more active move, rook back to a3, White is winning as shown in line II. 3) A).

69.Kd5 Ra6 70.e6 Ra5+ 71.Kc6 Ra4 72.f5 Rxg4 73.Rh3 Rf4 74.Rxh6 Ke7 =

(Black avoids the last trap 74... Rxf5? 75.Kd6 +-)

How can we break Black's resistance here? Did I misjudge one of the endgames with f+g vs. h pawn which can show up around move 69 or 70?

Or it it still a draw?
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #14 - 05/25/12 at 08:36:14
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pgn-file Nikolic-Ftacnik
  

Nikolic-Ftacnik_25_05_12.pgn ( 3 KB | Downloads )
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Re: Capablanca-Yates (Hastings, 1930)
Reply #13 - 05/25/12 at 08:35:27
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Thanks a lot Papageno for your valuable corrections! I agree fully with you.

In D. 20 5...Ra6+ is indeed not the decisive mistake. So 5...Kf8! is not the only way to draw but apparently the best practical option. After 5...Ra6+?! 6.Ke7 (White has nothing better) 6…Ra5! draws, as shown in variation II. 3 A b. Black throws away the draw by the move 6…Ra7+? (as suggested by Ftacnik, Emms and Nunn).

In D. 24 your suggestion 75. Rf6 is indeed an easy win for White. It is in my opinion the best practical option. White wins also after 75.Kg2 Rh4 but the play is much more complicated. 76.Kg3 Rh1 77.Rf6 Ke8 78.Rf5 Ra1 (78...Rg1+ 79.Kf3 Rf1+ 80.Kg2 Ra1 81.Rf6 Ra4 82.Kf3+-) 79.Rh5 Ra6 80.f5 Rb6 81.Kh4 (or 81.f6 Kd7 82.Rxh6 Ke6 83.Rh5 Rb4 84.Rf5 Rb1 85.Kh4 Rb8 86.Rf1 Kxe5 87.g5+-) 81...Rb5 82.Rxh6 Rxe5 83.Kg5 Ke7 84.Ra6 Rb5 85.Kh6 Rb4 86.f6+ Kd7 87.Kg7 Rxg4+ 88.Kxf7+-. 

I have attached the corrected pgn-files Nikolic-Ftacnik and Capablanca-Yates.
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #12 - 05/24/12 at 14:49:48
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Thx for this interesting reading! It was an important endgame lesson for me, since I horribly misplayed this ending myself just two years ago. And in my analysis right after the game I didn't get much straight either...

Only two minor points I noticed in your posting #7 while playing through the lines.

Poghosyan wrote on 05/22/12 at 18:29:15:
D. 20

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B) 4...Ra1?! 5.Kd6

Now 5…Kf8! transposes to Duras-Capablanca (rev. col.) (D. 18 after 3…Rg1? 4.Kd5? Kf8! 5.Kd6 Ra1). 
Instead of 5…Kf8! Ftacnik, Emms and Nunn consider only 5…Ra6+ ? which loses.

6.Ke7 Ra7+ 7.Rd7 Ra5

7...Ra8 8.Rb7 Rc8 9.Kd6 +- (Nunn).

8.e6 fxe6 9.f6++-.   


5...Kf8! is one way for Black to hold the position.

But 5...Ra6+ must be o.k. as well if and ony if Black follows up with 6. Ke7 Ra5!=. By transposition, this is a position from Smeets-Wiersma that you analysed before (variation II. 3 A b) and assessed as drawn.

Poghosyan wrote on 05/22/12 at 18:29:15:
D. 24

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After 71…Re1+ White wins by driving the Black rook off the e-file.

72.Kf3

A. 72…Kf8

73.Rd4 The win is analogous to the line in Duras-Capablanca (rev. col.), D. 12 after 9…Kf8 10.Ra4. 

73...Ke7 74.Rd6 Rh1 75.Kg2 Rh4 76.Kf3 h5 77.g5 Rh1 78.Ke4 h4 79.Rh6 h3 80.Kf3 h2 81.Kg2+- 



Your assessment seems correct to me but the line given is not entirely convincing as 75.Kg2 Rh4 76.Kf3 invites Black to repeat moves with 75...Rh1. Perhaps 75. Rf6 (planning Rf6-f5-h5) or sth. else is better in breaking Black's resistance.

Keep up the good work! Smiley
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #11 - 05/23/12 at 05:44:22
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Ths Poghesyan. for your additional analysis and for posting Kopaevs original analysis.

From your posts it becomse clear the the weaker side can not save Capablanca-Yates positions by pinning the e-pawn. There is no way of saving the initial position after either Rd6 or Rb6.

In Duras-Capablanca (col.rev) playing f5? at once threw away the win but Kopaev showed that white still can win by other means.


It really is a shame that so much of kopaevs material was deleted by averbakh.
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #10 - 05/22/12 at 18:57:59
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Wow.  Cheesy  Such a feast for the mind!  Thank you Pogohysian (and Micawber)!
  
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Re: Capablanca-Yates (Hastings, 1930)
Reply #9 - 05/22/12 at 18:32:12
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Here is the pgn-file

Capablanca-Yates pinning
  

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Re: Capablanca-Yates (Hastings, 1930)
Reply #8 - 05/22/12 at 18:31:00
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Here is thepgn-file

Capablanca-Yates 71...Re1
  

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Re: Capablanca-Yates (Hastings, 1930)
Reply #7 - 05/22/12 at 18:29:15
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II. 3.f5?

D. 18

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1) As indicated by Kopayev the best move here is 3...Kf8. Kopayev apparently assumed that it is easier to draw with the White king on e4 rather than on d5. So he did not provide for concrete variations and referred to the line 4.Kd5? Kf8! in Duras-Capablanca (col. rev.) where the White king has already advanced to d5. After 3…Kf8 Black can keep his rook on e-file and exchange the central pawn of White if it advances. The ensuing e- and g-pawns versus h-pawn or f- and g-pawns versus h-pawn positions are as a rule drawn.       

2) 3…Rg1?

Duras-Capablanca (col. rev.). This move of Duras loses.

4.Kd5?

Capablanca fails to exploit his opponent’s mistake. Kopayev’s move 4.Rd7! wins here.
a) 4...Kf8 5.f6 Re1+ 6.Kd5 Rd1+ 7.Kc6 Rc1+ 8.Kb5 Rb1+ (8...Ke8 9.Re7+ Kf8 10.Ra7 Ke8 11.Ra8+ Kd7 12.Rf8 Ke6 13.Re8+ Kd5 14.e6) 9.Kc4 Rc1+ 10.Kb4 Rc8 11.Kb5 Re8 12.Kc6 Rxe5 13.Rd8+ Re8 14.Rxe8+ Kxe8+- 
b) 4...Rxg4+ 5.Kf3 Rg5 6.Kf4 Kf8 7.f6 Ke8 (7...Kg8 8.Rd8+ Kh7 9.Rf8 Kg6 10.Rg8+ Kh5 11.Rg7) 8.Re7+ Kf8 9.Ra7 Ke8 10.Ra8+ Kd7 11.Rf8 Ke6 12.Re8+ Kd5 13.Re7 Rg8 14.Rd7+ Kc6 15.Rxf7+-

4...Kf8!

Black activates his king and with accurate defence this position is drawn.

5.Kd6 Ra1 6.e6

Kopayev showed that 6.f6 also does not help. 6…Ke8 7.Rb4 Rd1+ 8.Kc5 Rc1+ 9.Kd4 Rd1+ 10.Kc4 (10.Kc3 Re1 11.Rb8+ Kd7 12.Rb7+ Ke6 13.Re7+ Kd5 14.Rxf7 Re3+ 15.Kd2 Rxe5 16.Re7 Re6=) 10...Rc1+ 11.Kd3 Kd7]

6...Ra6+?

This final mistake seals Black's fate. Kopayev proved very convincingly that Black could have drawn by 6...Re1!

D. 19

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a) 7.Rd2 Re3 8.Rh2 fxe6 9.fxe6 Rd3+ 10.Ke5 Re3+ 11.Kf5 Rf3+ 12.Kg6 (12.Ke4 Rf6 13.Kd5 Ke7) 12...Rf4 13.Rh4 (13.Rg2 Re4 14.Kf5 Re1 15.Rh2 Rf1+ 16.Kg6 Rf4) 13...h5 14.Kxh5 Re4 15.Kg6 Rxe6+ 16.Kh7 Re7+ 17.Kh8 Rg7=.
b) 7.Ra4 fxe6 8.fxe6 Rd1+ 9.Ke5 Ke7 10.Ra7+ Ke8 11.Kf6 Rf1+ 12.Kg6 Rg1 13.Ra4 Rh1=.
c) 7.Kd7 Re2 8.Rd6 Re4! 9.exf7 Kxf7 10.Rg6 Rf4 11.Kd6 h5 12.Ke5 Rxg4=

On the move Black draws by 7...fxe6 8.fxe6 Ke8 (8...Ra1=) 9.Ra4 Rd1+ 10.Ke5 Re1+ 11.Kf6 Rf1+ 12.Kg6 Rh1 13.Ra7 Rg1!=. Just waiting with rook on e-file also draws. Micawber considers the line 7...Re2 8.Rc4 fxe6 9.fxe6 Rd2+ 10.Ke5 Rd1? and evaluates the position as drawn. In fact the last move loses: 11.Kf6 Rf1+ 12.Kg6 Rh1 13.Rc7 Ke8 14.e7 Rh2 15.Kg7 Rh1 16.Rc6+-. Black draws if he plays 10...Ke7 or 10...Ke8 (instead of 10...Rd1?). E. g. 10...Ke7 12.Rc7+ Ke8 13.Kf6 Rf2+ 14.Kg6 Rg2 15.Kh5 Rg1 16.e7 Rg2=.

7.Ke5 fxe6 8.f6!

8.fxe6? Ra1=

8...Kg8 9.Rd6 Ra1

9...Ra4 10.Kxe6 Re4+ 11.Kf5 Ra4 12.g5 Ra5+ 13.Ke6 hxg5 14.Rd8+ Kh7 15.f7+-
9...Rxd6 10.Kxd6 Kf7 11.Ke5 Kf8 12.Kxe6 Ke8 13.f7+ Kf8 14.Kf6 h5 15.g5+- 

10.Kxe6 Re1+ 11.Kf5 Rg1 12.Rd8+ Kf7 13.Rd7+ Kf8 14.Rh7

14.g5 Rxg5+ (14...hxg5 15.Kg6) 15.Ke6+- 

14...Kg8 15.Rxh6 Rg2 16.g5 Rg1 17.Kg6. Duras resigned.   

3) 3…Re1+?!

Nikolic-Ftacnik (1997). 3…Re1+?! doesn’t lose but it is a superfluous move. 

4.Kd5

D. 20

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As we saw in Carls-Matisons (D. 17) this position is drawn even White to play but Ftacnik, Emms and Nunn believe that the position is winning for White. Also here the easiest way to draw is 4…Kf8.

A) 4...Rf1?! 5.Kd6 Ra1?

This is the decisive mistake. 5…Kf8 still draws. After 58.e6 (Micawber  58.Ra4 Rd1+=; 58.Kd7 Re1 59.e6= Transposition to the analysis Duras-Capablanca) 58...Re1we transpose to the analysis of Kopayev in Duras-Capablanca  (see 6…Re1! Instead of 6…Ra6+?). 

a) 6.Rc4 Ra8

Black doesn’t have anything better.
6...Rd1+ 59.Ke7 Rd5 60.e6 (Ftacnik). 58...Ra6+ 59.Rc6 Ra4 60.Rc7 (Micawber). 58...Rd1+ 59.Ke7 Rd5 60.e6 (Emms).   

7.Rc7 Ra6+

7...Kf8 8.Kd7 Ra5 9.Rc8+ Kg7 10.f6+ Kh7 11.e6 (Ftacnik). 

8.Ke7 Ra4

8...Rb6 fails to 9.e6.
8...Ra8 also does not help. 9.e6 (or 9.Rd7 Rb8 10.f6+ Kg6 11.Rd8 Rb7+ 12.Kd6 Kg5 13.Rd7 Rb6+ 14.Kc5 Re6 15.Re7 Ra6 16.Rxf7+-) 9...fxe6 10.Kxe6++-.

9.e6 fxe6

9...f6 10.Kd8+ Kg8 11.e7 (Ftacnik).

10.f6+ Kg6 11.f7 Rf4 12.f8Q Rxf8 13.Kxf8 e5 14.Rc4. Ftacnik resigned.

b) 6.Ke7?

D. 21

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The move 6.Ke7 was recommended by Ftacnik and Micawber and played in Smeets-Wiersma (2003) but it throws away the win. 

6...Ra5!

The only move to draw. 6...Re1? (Ftacnik and Micawber ) fails to 7.e6 Re2 8.Rd7+-.

7.e6 fxe6 8.fxe6

8.Kxe6 Ra6+ 9.Ke7 (9.Rd6 Rxd6+ 10.Kxd6 Kf6 11.Kd5 h5=) 9...Ra7+ 10.Rd7 Rxd7+ 11.Kxd7 Kf6=.

D. 22

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8...Ra7+

Black can draw also by 8...Ra8 and 8...Ra6=.

9.Rd7 Ra6?

This move of Wiersma loses. Black could have drawn by nearly every other move on a-file. E. g.  9…Ra4 10.Ke8+ Kf6 11.e7 Ke6=.

10.Rd6?

10.Ke8+! Kf6 11.e7+- (Micawber).

10...Ra7+?

White returns the compliment. Black could have drawn by 10...Ra8! preventing the move Ke8.

11.Ke8 Ra8+ 12.Rd8 Ra7 13.Rd7+ 1–0

B) 4...Ra1?! 5.Kd6

Now 5…Kf8! transposes to Duras-Capablanca (rev. col.) (D. 18 after 3…Rg1? 4.Kd5? Kf8! 5.Kd6 Ra1). 
Instead of 5…Kf8! Ftacnik, Emms and Nunn consider only 5…Ra6+ ? which loses.

6.Ke7 Ra7+ 7.Rd7 Ra5

7...Ra8 8.Rb7 Rc8 9.Kd6 +- (Nunn).

8.e6 fxe6 9.f6++-.   


After this complicated analysis it is not that much difficult to address the doubts of Micawber.

1)

D. 23

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Micawber wonders how white wins against 71.......Re1+ in the final position of Kopaevs analysis in the long variation after 65.Rb7 Kg8! 66.Rb3 Kg7 67.Re3 Rb4 68.Re4 Rb1 69.Rd4 Rf1 70.Rd7 Kg7 71.Ke4 (Kopaevs line from 1956/58).

D. 24

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After 71…Re1+ White wins by driving the Black rook off the e-file.

72.Kf3

A. 72…Kf8

73.Rd4 The win is analogous to the line in Duras-Capablanca (rev. col.), D. 12 after 9…Kf8 10.Ra4. 

73...Ke7 74.Rd6 Rh1 75.Kg2 Rh4 76.Kf3 h5 77.g5 Rh1 78.Ke4 h4 79.Rh6 h3 80.Kf3 h2 81.Kg2+- 

B. 72...Rf1+ 73.Ke3 Rg1

73...h5 74.g5 h4 75.Ke4 h3 76.Rd2+-. 
73...Re1+ 74.Kf2 Re4 75.Kf3 Re1 76.Rd4 Kg7 77.Kf2 Ra1 78.Rd8+- The win is analogous to the line in D. 16 with the White rook on a8.   

74.Rd8+

a) 74…Kg7 75.f5 Re1+

75...Rxg4 76.f6+ Kh7 77.e6+-

76.Kf4 Rf1+ 77.Kg3 Re1 78.f6+ Kh7 79.Re8+-

b) 74...Kh7 75.Kf3 Rf1+ 76.Ke4 Re1+

D. 25

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77.Kf5 Kg7 78.Rd7+-

This position can arise also from the initial position (D. 23) if Black tries after 69.Rd4 to keep the White king boxed in by 69…Re1. White answers by 70.Rd7.

In order to prevent e5-e6 Black has now nothing better than to keep his rook on e-file. 

78...Re2 79.Re7 Ra2

Since Black can not hinder e5-e6 he tries to resort to flank checks.

80.e6 Ra5+ 81.Ke4 Ra4+ 82.Kf3 Ra3+ 83.Kg2 Kf6 84.Rxf7+ Kxe6 85.Rh7+-.

D. 26 = D. 23

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After 61.Rb6?! Ra4 62.Kf3 Ra3+ 63.Ke4 Ra4+ 64.Kf5 Micawber suggests pinning the e-pawn by 64…Ra5 or by 64…Rc4 65.Rb7 Rc5.

64…Rc4 65.Rb7 Rc5 

If 64...Ra5 then 65.Rb4 Ra1 (65...Kf8 66.Ke4 Ra1 67.Rb8+ Kg7 68.f5+-) 66.Ke4+- See below after 67.Ke4.

66.Rb4 Rc1

66...Kf8 67.Ke4 Rc1 68.Rb8+ Kg7 69.f5+-.

67.Ke4 Re1+

67...Rg1 68.Kf3+- White wins analogous to the line in D. 10 after 3.Ra4 Rg1 4.Kf3.

68.Kf3 Rf1+ 69.Kg2 Ra1 70.Rb8+- White wins analogous to the line in D. 15 after 4.Kf3 Rf1+ 5.Kg2 Rb1 6.Ra8. 
  

Nikolic-Ftacnik.pgn ( 3 KB | Downloads )
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