Author: Sune Larsson
Date: 08:38:38 03/17/01
Go up one level in this thread
On March 17, 2001 at 09:20:02, Uri Blass wrote: >On March 17, 2001 at 08:59:05, Sune Larsson wrote: > >>On March 17, 2001 at 08:20:29, Uri Blass wrote: >> >>>On March 17, 2001 at 06:58:59, Sune Larsson wrote: >>> >>>>On March 17, 2001 at 04:19:57, Sune Larsson wrote: >>>> >>>>> >>>>> [D]2r3k1/4pp1p/3p2p1/p2R4/1r6/1P4P1/P3PP1P/R5K1 b - - 0 1 >>>>> >>>>> IM Giardelli,S 2438 - GM Andersson,U 2640 >>>>> >>>>> >>>>> There is a tournament played in Argentine right now. Among the participants >>>>> you notice, among others, GM Larsen, GM Panno and GM Andersson. >>>>> >>>>> The link is here: http://www.utopiasdepinamar.com.ar/magistral/ >>>>> >>>>> The above position is from the 9th round, where Ulf shows his technique >>>>> and skills in a double rook ending. This man can make things look easy! >>>>> >>>>> >>>>> Test: This might be an interesting position for programs to play out. >>>>> A little indicator of how your program handles these endings. >>>>> Actually it's possible to make a tourney, with several programs, >>>>> played from the above position. >>>>> >>>>> Giardelli-Andersson went: >>>>> >>>>> >>>>> >>>>>Giardelli - Andersson >>>>>Double Rook ending, 2001 >>>>> >>>>>A nice example of GM Andersson's technique and skill in endgames. Black is >>>>>better here and Andersson gives his opponent no mercy. 1...a4 2.Rd3 Rc2 3.Kf1 >>>>>Re4 4.e3 Rb4 5.h4 Rb2 6.bxa4 Rxa4 7.a3 Rc4 8.Kg2 Rcc2 9.Rf1 Ra2 10.Kf3 Rc5 11.g4 >>>>>h5 12.Rg1 Kg7 13.gxh5 Rxh5 14.Rg4 Rf5+ 15.Rf4 Ra5 16.Re4 Kf6 17.Rf4+ Ke6 18.Rdd4 >>>>>R2xa3 19.Rde4+ Re5 20.Rxe5+ dxe5 21.Rb4 f6 22.Rb7 Ra4 23.Kg3 f5 24.Rb6+ Kf7 >>>>>25.Kh3 Rg4 26.f3 Rc4 27.Rb3 e4 28.fxe4 Rxe4 29.Ra3 Kg7 0-1 >>>>>White cannot avoid further material loss. >>>> >>>> >>>>This is the above position in a shoot out by Deep Fritz at ply 14. >>>> >>>>Ny ställning >>>>Spela ut (DeepFritz, 14ply) , 2001 >>>> >>>>1...a4 2.bxa4 -0.31/14 39 Rb2 -0.38/14 28 3.e3 (a5) -0.41/14 50 >>>>3...Rcc2 -0.41/14 15 4.Rf1 -0.41/14 25 Rc4 -0.59/14 30 5.Ra5 -0.59/14 >>>>21 Rxa2 (Kg7) -0.66/14 20 6.Ra7 -0.44/14 16 Kf8 (e6) -0.72/14 21 7.Rb1 >>>>(a5) -0.69/14 28 7...Rcc2 -0.78/14 22 8.Rf1 -0.78/14 20 f5 (f6) >>>>-0.91/14 18 9.Kg2 (h3) -0.91/14 31 9...Rc4 -0.94/14 12 10.a5 -0.97/14 >>>>34 Rca4 -1.03/14 26 11.Rb1 -1.06/14 45 Rxa5 -1.06/14 19 12.Rxa5 >>>>-1.09/14 45 Rxa5 -1.06/14 20 13.h3 -1.09/14 31 Kf7 -1.19/14 22 14.g4 >>>>-1.12/14 26 fxg4 -1.13/14 24 15.hxg4 -1.12/14 30 h5 -1.09/14 41 16.f4 >>>> -1.09/14 1:35 hxg4 -1.16/14 54 17.Kg3 -1.06/14 8 Ra3 -1.13/14 10 >>>>18.Re1 -1.06/14 4 e5 -1.16/14 9 19.fxe5 (Kxg4) -1.12/14 10 19...d5 >>>>-1.09/14 5 20.Kxg4 -1.41/14 6 Ke6 -1.41/14 7 21.Kf3 -1.47/14 8 Kxe5 >>>>-1.50/14 9 22.Rd1 -1.37/14 5 Rc3 -1.44/14 4 23.Ke2 -1.41/14 5 Rc4 >>>>-1.34/14 8 24.Rg1 -1.37/14 3 Kf5 -1.25/14 7 25.Rf1+ -1.22/14 7 Ke4 >>>>-1.25/14 4 26.Rg1 -1.22/14 5 Rc2+ -1.19/14 3 27.Kd1 -1.16/14 2 Rc6 >>>>-1.22/14 5 28.Ke2 (Kd2) -1.19/14 3 28...Kf5 (Te6) -1.13/14 8 29.Kd3 >>>>(Tf1+) -1.09/14 8 29...Ra6 -1.13/14 9 30.Kd4 -1.09/14 7 Ra5 -1.06/14 >>>>11 31.Rc1 -1.22/14 9 g5 -1.22/14 9 32.Rh1 -0.78/14 13 Rb5 -0.75/14 >>>>30 33.Rh8 -0.81/14 15 Kg4 -1.13/14 13 34.Rh1 -0.94/14 9 Kf3 -1.16/14 >>>>9 35.Rf1+ -1.47/14 12 Ke2 -1.47/14 3 36.Rf5 -0.72/14 6 Rb4+ -0.72/14 >>>>6 37.Kc5 -0.72/14 2 Rg4 -0.69/14 4 38.Re5 -0.75/14 4 Rg3 -0.81/14 4 >>>>39.Kxd5 -0.75/14 3 g4 -0.56/14 6 40.Kd4 -0.75/14 15 Rf3 -0.41/14 9 >>>>41.Rg5 -0.37/14 2 g3 -0.06/14 5 42.e4 0.00/14 4 Ra3 (Td3+) 0.03/14 13 >>>> 43.e5 0.00/14 5 Kf3 (Ta4+) 0.00/14 9 44.e6 (Tg8) 0.00/14 6 44...Ra4+ >>>>0.09/14 14 45.Kd3 0.00/14 6 g2 (Ta3+) 0.00/14 15 46.e7 (Tg8) 0.00/14 >>>>10 46...Ra8 (Ta3+) 0.00/14 11 47.Rg6 (Tg7) 0.00/14 11 47...Re8 0.00/14 >>>>12 ½-½ >>>> >>>> >>>> >>>>Sune >>> >>>I think that you forget the fact that GM andersson played against an IM and not >>>against Deep Fritz. >>> >>>There is no proof that black's advantage is enough to win. >>> >>>I also do not understand the decision to use depth 14. >>>Using fixed time seems to be more logical. >> >> I disagree. 1) I'm very well aware of the fact that GM Andersson played >> against IM Giardelli and not Deep Fritz. Just look below >> the board. > >Yopu are right but you also said that GM andersson can make things look easy. Right. That is my experience after having played through lots of his games. > >I think that the loser made things look easy. Okey, but Andersson often make things look easy by displaying optimal endgame handling. > >I analyzed the game and he did some mistakes. > >The first mistake was the move 10.Kf3 that is losing a pawn and the last mistake >is 28.fxe4 that is losing another pawn. Instead of 10.Kf3 Deep Fritz suggests 10.e4, but after 10.-h5! white has a very cramped position. At depth 19 Fritz sees only passive moves for white and gives -0.44. IMHO black has excellent winning chances here. > > >> >>2) Where do I state that black's advantage is enough to win? >>I wrote that black is better in the above position. >Yes but the impression from the claim:"This man can make things look easy" is >that black has a won position. That is your, very subjective, interpretation of my words. > >I looked at the game and it seems to me that even after 10.Kf3 it is a draw. I cannot be that cathegorical without proof. > >22.Rb7 is not good and I agree with deep fritz that 22.Kg4 is better After f.e. 22.Kg4 Ra2 23.f3 Ra3 24.e4 f5+ I still think black has excellent winning chances. >23.Kg3 is also not good and 23.e4 is suggested by Deep Fritz. After f.e. 23.e4 Ra3+ 24.Kg4 Ra2 and later followed by f5, the above comment is still valid to me. > >I suspect that the IM simply did not see 23.e4 and thought that he must defend >the pawn h4 with the king(a typical mistake of humans who do not do 1 ply >search) That might be true. > >Uri
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