Author: Uri Blass
Date: 02:18:00 04/14/03
Go up one level in this thread
On April 14, 2003 at 03:44:07, martin fierz wrote:
>On April 13, 2003 at 15:04:53, Jim Monaghan wrote:
>
>>On April 13, 2003 at 06:55:48, Uri Blass wrote:
>>
>>>Movei got QN vs RRPP and lost the game.
>>>
>>>It seems clear to me that after 38...Qe8 black is lost but I suspect that the
>>>losing error was earlier.
>>>
>>>I will be happy to hear some comments about the game.
>>
>>Hi Uri,
>>
>>I think a strategical mistake occured here:
>>
>>[D]1k4q1/pp1n3p/1bp2n2/4p3/1P2P3/2PPNRPP/P2B4/R6K b - -
>>
>>28... Ne8 does not further Black's position. I think 28... Bxe3! is much
>>stronger. The WN soon becomes a powerhouse on the white squares as the pawn play
>>on the queenside developed resulting in a fine square on d5 where it surveyed
>>the board. Meanwhile Black's knights had no squares or targets. Play could
>>develop like this:
>>
>>
>>29. Bxe3 Qe6 {attacking the h-pawn}
>>30. Kg2 b6 {preparing c6-c5}
>>31. Rf2 Qd6 (focusing on the weak d-pawn}
>>32. Rd2 c5 {continuing the attack}
>>33. bxc5 Nxc5 {again hitting the weakling}
>>34. Rad1 Kb7
>>
>>White looks tied up and his game lacks life. Black's Q and 2Ns should co-operate
>>well together. White didn't get the f-file play or the WN at d5 as in the game.
>>My feeling is that Black will prevail.
>
>i agree with your idea - after Bxe3 white has very little going for himself.
>once black consolidates, the game should be over.
>
>cheers
> martin
I still did not analyze Bxe3 but I like movei's move after deeper search that it
did not get in the game(c5).
black gets the intiative and shredder and Fritz agree that the score is
improving every iteration at depth>=11 but do not agree about the right reply of
black against bxc5:
New game
[D]1k4q1/pp1n3p/1b3n2/2p1p3/1P2P3/2PPNRPP/P2B4/R6K w - - 0 1
Analysis by Shredder 7.04:
2.Rxf6 Nxf6 3.bxc5 Qxg3 4.cxb6 Qxh3+ 5.Kg1
-+ (-3.09) Depth: 1/3 00:00:00
2.Rxf6 Nxf6 3.bxc5 Bxc5
-+ (-3.65) Depth: 1/7 00:00:00
2.Rxf6 Nxf6 3.bxc5 Bxc5
-+ (-3.65) Depth: 1/7 00:00:00
2.bxc5 Qc4 3.dxc4 h5
µ (-1.19) Depth: 1/7 00:00:00
2.bxc5 Bxc5 3.Nf5 Qg6 4.g4 Nxg4 5.hxg4 Qh5+ 6.gxh5
µ (-1.19) Depth: 1/7 00:00:00
2.bxc5 Bxc5 3.Nd5
µ (-1.29) Depth: 2/7 00:00:00
2.bxc5 Bxc5 3.Nf5 Qg6 4.g4 Nxg4 5.hxg4 Qh5+ 6.gxh5
µ (-1.19) Depth: 3/7 00:00:00
2.bxc5 Bxc5 3.Nf5 Qe6 4.a4 Qc4
µ (-1.18) Depth: 4/8 00:00:00
2.bxc5 Bxc5 3.Nf5 Qe6 4.a4 Qc6 5.Kh2
µ (-1.11) Depth: 5/9 00:00:00
2.bxc5 Bxc5 3.Nf5 Qe6 4.g4 Ka8 5.a4
µ (-1.08) Depth: 6/15 00:00:00 11kN
2.bxc5 Bxc5 3.Nf5 Ba3 4.g4 Bb2 5.Ne7 Qe6
µ (-1.07) Depth: 7/15 00:00:00 32kN
2.bxc5 Bxc5 3.Nf5 Ka8 4.Kh2 Nxe4 5.dxe4 Qxg3+ 6.Nxg3
µ (-1.01) Depth: 8/16 00:00:00 107kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.Kh2 h5 5.a4 Nb6
µ (-0.97) Depth: 9/23 00:00:01 230kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.g4 Qb6 5.Bc1 Qa5 6.Bb2
µ (-1.14) Depth: 10/26 00:00:03 452kN
2.a3 Qe6 3.Kh2 cxb4 4.axb4 Bxe3 5.Bxe3 Ng4+ 6.hxg4 Qh6+ 7.Bxh6
µ (-1.13) Depth: 10/26 00:00:04 753kN
2.a3 Qb3 3.Rf5 cxb4 4.Rxf6 Nxf6 5.cxb4
µ (-1.13) Depth: 10/26 00:00:06 998kN
2.a3 Qb3 3.Raf1 Qa2 4.Bc1 cxb4 5.axb4 Qe2 6.Nd5 Nxd5 7.exd5 Kc7 8.Bg5 Kd6
µ (-1.30) Depth: 11/29 00:00:09 1662kN
2.bxc5 Bxc5
µ (-1.29) Depth: 11/29 00:00:10 1790kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.c4 Qc6 5.a4 Nf8 6.Bg5 N6d7 7.Kh2 Ne6
µ (-1.08) Depth: 11/29 00:00:12 2177kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.Bg5 h5 5.Kg2 Qb6 6.Bc1 Qa5 7.Bb2
µ (-1.18) Depth: 12/31 00:00:24 4150kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.g4 Qb6 5.Bc1 Qa5 6.Bd2 Qa4 7.d4 Nxe4 8.Rb1
µ (-1.21) Depth: 13/33 00:00:42 7495kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.c4 Qc6 5.Bg5 Ne8 6.Rd1 Qa6 7.Ra1 Qg6 8.h4 Nd6
µ (-1.35) Depth: 14/34 00:01:43 14484kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.c4 Qc6 5.a4 Qb6 6.Raf1 Qb2 7.Bg5 Qc2 8.a5 Qa2 9.Ng7 Ng8
µ (-1.39) Depth: 15/36 00:03:58 29374kN
2.bxc5 Bxc5 3.Nf5 Qe6 4.c4 Qc6 5.Bg5 Nxe4 6.dxe4 Qxe4 7.Raf1 Qxc4 8.Rd1 Qxa2
9.Rfd3 Qe6
-+ (-1.51) Depth: 16/40 00:08:25 67523kN
(Blass, Tel-Aviv 14.04.2003)
New game
1k4q1/pp1n3p/1b3n2/2p1p3/1P2P3/2PPNRPP/P2B4/R6K w - - 0 1
Analysis by Fritz 8:
2.bxc5 Bxc5 3.Nf5 h5 4.Kg2 Qf7 5.a3 Kc7
= (-0.25) Depth: 7/18 00:00:00 36kN
2.bxc5 Bxc5 3.Nf5 h5 4.Kg2 b5 5.Bh6 Qf7 6.Bg7
= (-0.25) Depth: 8/20 00:00:00 99kN
2.bxc5 Bxc5 3.Nf5 h5 4.Kg2 Kc7 5.a4 Qb3 6.a5 b5
³ (-0.34) Depth: 9/26 00:00:00 250kN
2.bxc5 Bxc5 3.Nf5 h5 4.Kg2 Kc7 5.Be3 Bxe3 6.Nxe3 b6 7.Nf5
³ (-0.31) Depth: 10/27 00:00:01 696kN
2.bxc5 Bxc5 3.Nf5 h5 4.Kg2 Kc7 5.Be3 Bxe3 6.Nxe3 Qe6 7.Nf5 Qb6 8.Rf2
³ (-0.28) Depth: 11/38 00:00:05 2124kN
2.bxc5 Bxc5 3.Nf5 h5 4.Kg2 Kc7 5.Be3 Bxe3 6.Nxe3 Qe6 7.Nf5 Nc5 8.Kf1 Nfxe4
9.dxe4 Qc4+
³ (-0.41) Depth: 12/37 00:00:16 6754kN
2.bxc5--
³ (-0.69) Depth: 13/41 00:01:30 39810kN
2.bxc5 Nxc5 3.Rxf6
³ (-0.69) Depth: 13/43 00:01:34 41569kN
2.bxc5--
µ (-0.97) Depth: 14/41 00:05:12 141221kN
2.bxc5 Nxc5 3.Rxf6
µ (-0.97) Depth: 14/47 00:05:31 150024kN
2.bxc5 Nxc5 3.Rxf6 Qxg3 4.Rf8+ Kc7 5.Nd5+ Kd6 6.Rf6+ Ne6 7.d4 Qxh3+ 8.Kg1 exd4
9.Nxb6 Qg3+ 10.Kh1
µ (-1.00) Depth: 15/45 00:14:43 404036kN
(Blass, Tel-Aviv 14.04.2003)
Uri
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