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Normal Topic Endgame of the fortnight (August 1-15) (Read 1466 times)
Jupp53
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Re: Endgame of the fortnight (August 1-15)
Reply #4 - 11/29/17 at 19:52:25
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This is my analysis, checked for feedback and corrections with Stockfish 8. I think it's a draw with black playing for a win in the rook endings.

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1. Rd2 Re1 (1... Rxd2+ 2. Kxd2 a3 3. bxa3 Bxa3 4. h4 gxh4 5. gxh4 Bc5 6.
Ne3 a5 7. Nxc4 {Leading simply to a draw.} (7. f4 {difficult to analyze. With
the pawns a5 and h4 the position becomes concrete. Another training position.}
a4 8. Nxc4 Kd5 9. Kd3 a3 10. Nd2 a2 11. Nb3 Bd6 12. c4+ Ke6 13. Kc2 (13. Ke4 $2
f5+ 14. Ke3 Be7 15. h5 Bf6 $18) 13... Bxf4 14. Kb2 Be3 15. Kxa2 Kf5 $11) 7...
Bxf2 8. Nxa5 Bxh4 $11) 2. Rd1 (2. Rd8 f5 3. Re8+ Be7 4. Nh6 Re2+ (4... Kd7 {
proposed by Stockfish 8}) 5. Kb1 (5. Kc1 Rxf2 6. Ng8 Kf7 7. Rxe7+ Kxg8 {
to my surprise Stockfish 8 gives 8.g4 = if computing 31 plies deep. Another
training position.}) 5... Rxf2 6. Ng8 Kf7 7. Rxe7+ Kxg8 8. Re5 Kf7 9. Ra5 {
so far nearly forced moves. My evaluation is a black advantage. Stockfish 8
agrees. Maybe someone else knows better. This is a training position for me.
Progressing the f-pawn seems natural but difficult.}) 2... Rxd1 3. Kxd1 a3 4.
bxa3 Bxa3 5. Ne3 Bc5 (5... Bb2 $2 6. Kc2 $18) 6. Nxc4 Bxf2 7. g4 Kd5 8. Nb2 {
should be equal} *
« Last Edit: 12/04/17 at 10:28:51 by GMTonyKosten »  

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Re: Endgame of the fortnight (August 1-15)
Reply #3 - 11/29/17 at 16:37:26
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I also analyzed this position for a bit, but did not reach a clear conclusion and gave up on it. Looking at it again now with fresh eyes, it is hard to believe that black is worse after 40.Rd2 Rxd2+ 41.Kxd2 a3 42.bxa3 Bxa3 43.Ne3 Bc5. Whether black is better after 40.Rd2 Re4 is what I could not decide before. Smyslov_Fan's punctuation marks elude me.
  
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Jupp53
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Re: Endgame of the fortnight (August 1-15)
Reply #2 - 11/27/17 at 14:37:12
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Going through the endgame section. Pardon if someone is disturbed by the age of the topic.

The postion with white to move
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Smyslov_Fan
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Re: Endgame of the fortnight (August 1-15)
Reply #1 - 08/05/05 at 22:22:11
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Here's my key line so far, but I'm sure you will be able to improve on it.



Zelcic,R (2522) - Bareev,E (2688 ) [C13]
15th ETC Gothenburg SWE (1), 30.07.2005

[40.Rd2 Re4! (40...Rxd2+ 41.Kxd2 f5 42.Ne3 Bxe3+ 43.Kxe3+-) 41.Ne3? Bxe3 42.Re2! Kd5 43.Rxe3 Rxe3 44.fxe3 Ke4 45.Kd2 (45.h4 gxh4 46.gxh4 Kf5-+) 45...Kf3-+] So Black has to find an improvement on move 41 if I'm right.

  
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Smyslov_Fan
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Endgame of the fortnight (August 1-15)
08/05/05 at 22:12:42
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Hi all!

I'm sorry that my free time is about to be reduced to zero due to the start of school. YAY!  HOORAY! Grin (I guess you can tell I'm a teacher and not one of the prisoners.   I mean students.  Well, you know what I mean  Wink

So, I have decided to give an endgame for the first two weeks of August rather than just one.  This comes from the European Team Championship, and superficially it appears to be yet another endgame crush by one of the World's elite players against another (yawn) 2500+ rated player.  

However, I was going through the game and noticed that White seemed to be refusing a tacit draw offer.  Now, presuming that the match circumstances had no bearing on the outcome (a big presumption, I know), can anyone find the win for Black in the following position?

It's move 40 and R. Zelcic is in check.

White:  Kc2 Rd8 Ng4
     Pawns:  b2 c3 f2 g3 h3
Black:  Ke6 Re2(+)  Bc5
     Pawns:  a6 a4 c4 f6 g5


What would have happened if White had played 40.Rd2 ???

I give the game with a few of my notes about the resulting position tossed in.


Zelcic,R (2522) - Bareev,E (2688) [C13]
15th ETC Gothenburg SWE (1), 30.07.2005

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 Bxf6 7.Nf3 0-0 8.Bc4 Nd7 9.Qe2 a6 10.0-0-0 b5 11.Bb3 Bb7 12.d5 exd5 13.Bxd5 c6 14.Bb3 Qc7 15.Rhe1 c5 16.Bd5 Bxd5 17.Rxd5 Be7 18.Kb1 Rae8 19.Rd3 Bd8 20.Re3 Qc6 21.Qd3 Bc7 22.Nc3 Rxe3 23.Qxe3 Ba5 24.Re2 c4 25.Qe4 Qxe4 26.Nxe4 Re8 27.c3 Bb6 28.Rd2 Rxe4 29.Rxd7 h6 30.Rd2 g5 31.Kc2 Rf4 32.h3 f6 33.a4 bxa4 34.Nd4 Kf7 35.g3 Re4 36.Nf5 Bc5 37.Nxh6+ Ke6 38.Ng4 Re1 39.Rd8 Re2+ 40.Kb1 [40.Rd2 Rxd2+ 41.Kxd2 f5 42.Ne3 Bxe3+ 43.Kxe3 and WHITE wins!] 40...f5 (40...Bf2?? Re8 aslo wins for White) 41.Re8+ Be7 42.Ne3 Rxf2 43.g4 Kd7 44.Ra8 f4 45.Ra7+ Ke8 46.Nf5 Re2 47.Nd4 Re3 48.Nf5 Re1+ 49.Kc2 f3 0-1


« Last Edit: 12/04/17 at 10:25:04 by GMTonyKosten »  
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