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Subject: Re: positional move

Author: Bernhard Bauer

Date: 23:19:18 11/25/99

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On November 25, 1999 at 15:29:54, Paulo Soares wrote:

>On November 25, 1999 at 14:04:04, Philippe Signoret wrote:
>
>>Try this position with your favourite programs:
>>3r3r/q4pk1/1b2p2p/p1NbPp2/1p3Q1P/4B3/PP3PP1/2RR2K1/ w
>>it's taken from 99 french championship in a game Bacrot-Fressinet
>>White's best move is probably g2-g4 !
>>Fritz532: 1h26' at depth 13
>>Genius5 :  9'20''  depth 8
>>CM6000  :  1'50''  depth 8 but it switches to h4-h5 after 4'
>>any commentary welcome
>
>PIII-450, HT=64Mb, default settings.
>Analysis by Hiarcs 7.32(My thanks to Mark Young, that taught me as
>passing for Clipboard the analyses done in the Chessbase engines.
>
>1.Qg3+ Kh7
>  ±  (0.86)   depth: 1   00:00:00
>1.Qg3+ Kh7 2.a4
>  ±  (0.86)   depth: 2/8   00:00:00
>1.Qg3+ Kh7
>  ²  (0.61)   depth: 3/12   00:00:00
>1.Qg3+ Kh7 2.Qf4 Kg7
>  =  (0.00)   depth: 3/15   00:00:00
>1.a3 Bxc5 2.Rxc5
>  ²  (0.53)   depth: 3/15   00:00:00
>1.a3 Bxc5
>  ±  (0.78)   depth: 4/16   00:00:00
>1.a3 Rc8 2.axb4
>  ±  (0.85)   depth: 4/17   00:00:00
>1.a3 bxa3
>  ²  (0.56)   depth: 5/19   00:00:00  16kN
>1.a3 bxa3
>  ²  (0.56)   depth: 5/19   00:00:00  20kN
>1.a3 bxa3
>  ²  (0.31)   depth: 6/21   00:00:02  107kN
>1.a3 bxa3 2.bxa3 Rc8 3.Qg3+ Kh7 4.Nd7 Qxd7 5.Rxc8 Rxc8
>  =  (-0.01)   depth: 6/22   00:00:02  118kN
>1.h5 Rdg8 2.b3 Kf8 3.f3 Ke8
>  ²  (0.48)   depth: 6/22   00:00:05  302kN
>1.h5 Rdg8
>  ±  (0.73)   depth: 7/23   00:00:11  566kN
>1.h5 Rdg8
>  ±  (0.73)   depth: 7/25   00:00:12  587kN
>1.h5 Rdg8 2.Kh2 Kf8 3.f3 Ke7 4.Qh4+ Ke8 5.a4
>  ±  (0.73)   depth: 8/25   00:00:48  2327kN
>1.h5 Qe7 2.a3 bxa3 3.bxa3 Kg8 4.Rd3
>  ±  (0.73)   depth: 9/27   00:03:02  8518kN
>1.g4 Kf8 2.gxf5 exf5 3.a3 Qe7 4.axb4 Rg8+ 5.Kh2 Rg6
>  ±  (0.89)   depth: 9/29   00:06:35  18857kN
>1.g4 Kf8
>  ±  (1.14)   depth: 10/29   00:17:51  45556kN
>1.g4 Rdg8 2.gxf5 Rh7 3.f3 Kf8+ 4.Kf2 Ke8 5.f6 Rhh8 6.b3
>  ±  (1.16)   depth: 10/30   00:25:29  63982kN
>
>Hiarcs maintains g4 until the end of the depth 10.
>
>Paulo Soares, from Brazil

And here is what Crafty (17.2) gives:
2xP3 450MHz
                6->   1.43   1.01   1. Rd3 Rc8 2. Nb3 Rxc1+ 3. Bxc1 Qe7
                                    4. Rg3+ Kf8 5. Kh2
         (3)    7->   4.73   0.95   1. a3 bxa3 2. bxa3 Rc8 3. Nd3 Bxe3
                                    4. Qg3+ Kh7 5. Rxc8 <HT>
         (3)    8->  10.08   0.89   1. Rd3 Rc8 2. Nb3 Bxe3 3. Rxe3 Rxc1+
                                    4. Nxc1 Qe7 5. Nb3 Bxb3 6. Rg3+ Kh7
                                    7. Rxb3
         (2)    9->  36.61   0.83   1. Rc2 Rc8 2. Rdc1 Qe7 3. a3 bxa3 4.
                                    bxa3 Rcd8 5. Rc3 Rdg8
               10     1:23   0.91   1. g4 Rc8 2. gxf5 Rxc5 3. f6+ Kf8 4.
                                    Qg3 Rh7 5. Bxh6+ Rxh6 6. Qg7+ Ke8 7.
                                    Qxh6 Rxc1 8. Qxc1 Bxf2+
         (2)   10->   1:28   0.91   1. g4 Rc8 2. gxf5 Rxc5 3. f6+ Kf8 4.
                                    Qg3 Rh7 5. Bxh6+ Rxh6 6. Qg7+ Ke8 7.
                                    Qxh6 Rxc1 8. Qxc1 Bxf2+
               11     2:18     ++   1. g4!!
               11     3:54   1.31   1. g4 Rc8 2. gxf5 Rxc5 3. Rxc5 Bxc5
                                    4. f6+ Kf8 5. Rc1 Rg8+ 6. Kh2 Rg2+
                                    7. Kh3 Qc7 8. Rxc5
               11->   4:04   1.31   1. g4 Rc8 2. gxf5 Rxc5 3. Rxc5 Bxc5
                                    4. f6+ Kf8 5. Rc1 Rg8+ 6. Kh2 Rg2+
                                    7. Kh3 Qc7 8. Rxc5

Kind regards
Bernhard



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