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Subject: Re: Serious blunder by Junior 8 or excellent attack by CM? You decide.

Author: Ernst Walet

Date: 03:51:13 08/03/03

Go up one level in this thread


On August 03, 2003 at 00:33:57, John Merlino wrote:

>On August 02, 2003 at 22:05:27, Anson T J wrote:
>
>>[d]2r2rk1/p3ppbp/6p1/8/8/QPqBBP2/P1P3PP/2KR3R w - - 0 20
>>
>>Junior 8 played 20. Bf2
>>=  (0.00)  Depth: 16   0:03:29
>>
>>
>>The King 3.23 SKR then played
>>20... Rfd8!
>>-+  (-8.87)  Depth: 13   0:10:47
>>
>>and won.
>>
>>Does any other engine also want to play 20. Bf2 ? I'm not sure if White's
>>position lost before move 20. or if it was a blunder on move 20. that cost
>>Junior the game.
>>
>>Please post your evals and comments:
>
>Chessmaster 9000 (default personality), after a reasonably long search on a
>P4-2.4G, seems to think that White's best chance is Qa4, with only a slight eval
>advantage to Black (-0.18). After 20.Bf2, a 1-minute search gives an eval of
>-1.37 for 20...Rfd8.
>
>But my vote is for "excellent attack by CM", starting with 18...Qc3!! How many
>engines would not play this move and not gxf5?
>
>[D]1r3rk1/p3ppbp/2q3p1/5B2/8/QP2BP2/P1P3PP/2KR3R b - - 0 18
>
>Majestic Chess, for example, needs 18 seconds on my P4-2.4 to find Qc3....
>
>jm

Shredder 7.04 smells it rather quickly, only 22 seconds on my XP @ 2.2GHz.

Ernst.

  9/21	 0:00 	-0.62 	18...gxf5 19.Qc5 Qf6 20.Bd4 e5 21.Be3 e4 22.Qd4 Qc6
(311.220) 379.0
 10/26	 0:02 	-0.50 	18...gxf5 19.Qc5 Qe6 20.Bg5 Qa6 21.Kb1 e6 22.Rd7 Rbc8
23.Qe7 Qe2 (938.832) 387.4
 11/27	 0:05 	-0.45 	18...gxf5 19.Qc5 Qf6 20.Bd4 e5 21.Bb2 Rfc8 22.Qd6 Qg5+
23.Qd2 Qe7 24.Qd6 (2.034.069) 395.9
 12/30	 0:14 	-0.47 	18...gxf5 19.Qc5 Qe6 20.Bg5 Qa6 21.Kb1 e6 22.Rd7 Rbc8
23.Qd6 Qe2 24.Qd2 (5.862.330) 395.2
 12/33	 0:22 	-0.46++	18...Qc3 19.Bd3 Rfd8 20.Bf4 Rbc8 21.Qxe7 Rxd3 22.Be5 Bxe5
23.Qd8+ Rcxd8 (8.875.703) 394.2
 12/33	 0:25 	-0.11++	18...Qc3 19.Bd3 Rfd8 20.Bf4 Rbc8 21.Qxe7 Rxd3 22.Be5 Bxe5
23.Rhe1 (10.028.148) 396.5
 12/40	 0:55 	 0.00 	18...Qc3 19.Bd3 Rfd8 20.Bf2 Bh6+ 21.Kb1 Bg7 22.Kc1 Bh6+
23.Kb1 Bg7 24.Kc1 Bh6+ (22.375.055) 405.7
 13/36	 1:22 	 0.00 	18...Qc3 19.Bd3 Rfd8 20.Bf2 Bh6+ 21.Kb1 Bg7 22.Kc1 Bh6+
23.Kb1 Bg7 24.Kc1 Bh6+ (32.890.848) 400.5
 14/43	 3:52 	+0.25++	18...Qc3 19.Bd3 Rfd8 20.Bf2 Rb5 21.Rhe1 Ra5 22.Qxe7 Rxa2
23.Qxd8+ Bf8 24.Qxf8+ Kxf8 25.Re8+ Kxe8 26.Bb5+ Kf8 27.Rd8+ Ke7 28.Rd7+ Ke6
29.Re7+ Kxe7 (91.504.892) 392.8
 14/43	 4:52 	+0.75++	18...Qc3 19.Bd3 Rfd8 20.Bf2 Rb5 21.Rhe1 Ra5 22.Qxe7 Rxa2
23.Qxd8+ Bf8 24.Qxf8+ Kxf8 25.Re8+ Kxe8 26.Bxg6 fxg6 27.Rd2 (114.372.330) 391.2
 14/43	 5:27 	+0.77 	18...Qc3 19.Bd3 Rfd8 20.Bf2 Rb5 21.Qxe7 Rbd5 22.Qe3 Qb2+
23.Kd2 Bd4 24.Qh6 Bxf2 25.Ke2 Rxd3 (128.279.937) 391.8
 15/40	10:11 	+0.82 	18...Qc3 19.Bd3 Rfd8 20.Qa4 Rbc8 21.b4 Rxd3 22.Rxd3 Qa1+
23.Kd2 Qxh1 24.Qxa7 Qxg2+ 25.Bf2 Qxh2 26.Kd1 Qh1+ (240.762.448) 393.6
 16/45	18:30 	+0.91 	18...Qc3 19.Bd3 Rfd8 20.Qa4 Rbc8 21.b4 Rxd3 22.Rxd3 Qa1+
23.Kd2 Qxh1 24.Qxa7 Qxg2+ 25.Bf2 Qxh2 26.Kd1 e6 27.b5 Qe5 28.a4 Qa1+ 29.Kd2
(436.297.339) 393.0
best move: Qc6-c3 time: 31:26.132 min  n/s: 397.530  CPU 99.2%  nodes:
749.604.029



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