Author: Sandro Necchi
Date: 00:52:47 12/28/05
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On December 28, 2005 at 03:12:23, Vasik Rajlich wrote: >Interesting game. I didn't like .. h6 and .. g5 by Rybka in the opening (as I >suspect most human players won't), and there were a few moments in the endgame >where better resistance could have been put up - but these are relatively minor >points. > >The biggest issue was the incorrect sacrifice of the h6 pawn. The Rybka static >eval incorrectly gives the following position (and others of a similar type) as >roughly equal: > >[D] 8/1b2b1k1/pp1ppp2/nPq5/P1P1P3/2QRNPP1/8/1N2KB1r b - - 0 27 > >I'll keep to myself my proposed solution. It's a tricky issue and won't be >handled until after the Rybka 1.2 release. If anybody wants to share here, I am >all ears :-) > >Vas Hi Vas, here a quick game analyse with comments. Ciao Sandro 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5?! {it is not as good as most people think} 5. dxc5! O-O 6. a3 Bxc5 7. Nf3 Nc6?! {I believe this move to be weak} 8. Bg5 b6?! {the problem of this variation is the pawn left in d7 which will make it hard to play for most programs} 9. Rd1!? Bb7 10. e4 h6? {better Be7} 11. Bh4 g5?! {weakening the king } 12. Bg3 Nh5?! {black should counter attack in the center and not look for exchanging the knight versus the bishop} 13. b4! {Shredder gives here a good advantage to white as black will get more compressed} Be7 14. b5?! {it should be stronger Qd2 to prepare to attack the king side} Na5 15. Ne5 d6 16. Ng4 Qc7?! {Rc8 should be stronger} 17. Nxh6+ Kg7 18. Ng4 Nxg3 19. hxg3 Rh8 20. Rxh8 Rxh8 21. Nb1 Qc5 22. Qc3+ f6 23. f3 Rh1 24. Ne3! a6 25. a4 g4 26. Rd3! gxf3 27. gxf3 Qg5 28. g4 Kg6 $2 29. Nd2 Qe5 30. Qd4 Qxd4? {changing the most active piece gives white advantage} 31. Rxd4 Rh8 32. f4! {Shredder gives white half a piece ahead while Rybka evaluate the position about even...I think Shredder is correct}
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