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Subject: Re: Junior Verses Brutus --> Rxc4 "The best PC chess move ever?" {Log}

Author: Dann Corbit

Date: 14:17:03 07/31/02

On July 31, 2002 at 17:09:33, Nolan Denson wrote:

>Hello Dan
>
>I ran this in Matrix and it's not seeing the 3... Ra8 so it don't like the Ra3
>that great. It seems to think Rab8 is best
>
>              clearing hash tables
>              time surplus   0.00  time limit 83:20 (83:20)
>         nss  depth   time  score   variation (1)
>         (2)    5->   0.12   0.82   1. ... Ra2 2. Nc1 Rc2 3. cxb4 Bxb4
>                                    4. Kg1
>                6     0.25   0.78   1. ... Ra2 2. Nc1 Rc2 3. cxb4 Bxb4
>                                    4. Kg1 Ng4
>                6     0.47   0.77   1. ... Bc5 2. cxb4 Bxb4 3. Ng3 Nh7
>                                    4. Bd2 Bc5
>                6     0.86   0.60   1. ... Rc6 2. cxb4 Bxb4 3. Rd3 Kg8
>                                    4. Nc3 Qg4
>         (3)    6->   0.89   0.60   1. ... Rc6 2. cxb4 Bxb4 3. Rd3 Kg8
>                                    4. Nc3 Qg4
>         (2)    7     1.20   0.86   1. ... Rc6 2. cxb4 Bxb4 3. Rd3 Kg8
>                                    4. Nc3 Qg4 5. Bxf6 Rxf6 6. Qxg4 hxg4
>                                    7. Rxf6 Nxf6 8. Nxe5
>                7     1.89   0.72   1. ... Ra6 2. cxb4 Bxb4 3. Rd3 Kg8
>                                    4. Ng3 Bc5 5. Bh6
>                7->   2.12   0.72   1. ... Ra6 2. cxb4 Bxb4 3. Rd3 Kg8
>                                    4. Ng3 Bc5 5. Bh6
>                8     3.83   0.57   1. ... Ra6 2. cxb4 Bxb4 3. Ne3 Ra2
>                                    4. Nc1 Rb2 5. Kg1 Rd8
>                8->   4.33   0.57   1. ... Ra6 2. cxb4 Bxb4 3. Ne3 Ra2
>                                    4. Nc1 Rb2 5. Kg1 Rd8
>                9     6.39   0.78   1. ... Ra6 2. cxb4 Bxb4 3. Ne3 Ra3
>                                    4. Nd5 Nxd5 5. exd5 Qf5 6. Qg3 Qg4
>         (3)    9->  13.48   0.78   1. ... Ra6 2. cxb4 Bxb4 3. Ne3 Ra3
>                                    4. Nd5 Nxd5 5. exd5 Qf5 6. Qg3 Qg4
>         (2)   10    25.83   0.67   1. ... Ra6 2. cxb4 Bxb4 3. Nc1 Qg4
>                                    4. Nd3 Qxg5 5. Nxb4 Ra7 6. Nd5 Ra2
>               10->  30.25   0.67   1. ... Ra6 2. cxb4 Bxb4 3. Nc1 Qg4
>                                    4. Nd3 Qxg5 5. Nxb4 Ra7 6. Nd5 Ra2
>               11    44.36   0.66   1. ... Ra6 2. cxb4 Bxb4 3. Nc1 Be7
>                                    4. Nd3 Ng4 5. Bxe7 Qxe7 6. Kg1 Rf6
>                                    7. Qg3 Kg8
>         (2)   11->   1:04   0.66   1. ... Ra6 2. cxb4 Bxb4 3. Nc1 Be7
>                                    4. Nd3 Ng4 5. Bxe7 Qxe7 6. Kg1 Rf6
>                                    7. Qg3 Kg8
>               12     1:29   0.69   1. ... Ra6 2. cxb4 Bxb4 3. Nc1 Be7
>                                    4. Nd3 Ng4 5. Bxe7 Qxe7 6. Qg3 Ndf6
>                                    7. Rfe1 Rd8 8. Kg1
>               12     6:16   0.60   1. ... Rab8 2. cxb4 Rxb4 3. Nc1 Rc7
>                                    4. Rd5 Qg4 5. Bxf6+ Bxf6 6. Qf2 Qh4
>                                    7. Qd2 Rbb7 8. Nd6
>               12->   6:16   0.60   1. ... Rab8 2. cxb4 Rxb4 3. Nc1 Rc7
>                                    4. Rd5 Qg4 5. Bxf6+ Bxf6 6. Qf2 Qh4
>                                    7. Qd2 Rbb7 8. Nd6
>               13    11:37   0.52   1. ... Rab8 2. cxb4 Rxb4 3. Rd3 Kg8
>                                    4. Nc1 Rb5 5. Bh4 Rc6 6. Rdd1 Nc5 7.
>                                    Nd3 Rxb3 8. Ncxe5
>               13->  12:42   0.52   1. ... Rab8 2. cxb4 Rxb4 3. Rd3 Kg8
>                                    4. Nc1 Rb5 5. Bh4 Rc6 6. Rdd1 Nc5 7.
>                                    Nd3 Rxb3 8. Ncxe5
>               14    27:07   0.62   1. ... Rab8 2. cxb4 Rxb4 3. Nc1 Rc7
>                                    4. Rd5 Rbb7 5. Bxf6+ Qxf6 6. Qd1 Qe6
>                                    7. Nd3 f6 8. Na5 Ra7 9. Qf3
>               14->  35:13   0.62   1. ... Rab8 2. cxb4 Rxb4 3. Nc1 Rc7
>                                    4. Rd5 Rbb7 5. Bxf6+ Qxf6 6. Qd1 Qe6
>                                    7. Nd3 f6 8. Na5 Ra7 9. Qf3
>               15    36:30   1/47*  1. ... Rab8

Of course, it's wrong (as are all other move suggestions by programs other than
Junior).  The Rook sacrifice is the best move (unless someone has found a
refutation).  That's the amazing thing about the move.  The above score is
negative for black, and by sacrificing the rook the game was won by black.

Re: Junior Verses Brutus --> Rxc4 "The best PC chess move ever?" {Log} Nolan Denson 14:49:51 07/31/02
- Re: Junior Verses Brutus --> Rxc4 "The best PC chess move ever?" {Log} stuart taylor 15:07:49 07/31/02
  - Re: Junior Verses Brutus --> Rxc4 "The best PC chess move ever?" {Log} Slater Wold 16:05:16 07/31/02
    - Re: Junior Verses Brutus --> Rxc4 "The best PC chess move ever?" {Log} stuart taylor 06:27:22 08/01/02
      - Re: Junior Verses Brutus --> Rxc4 "The best PC chess move ever?" {Log} Slater Wold 07:40:19 08/01/02
        
        Re: Junior Verses Brutus --> Rxc4 "The best PC chess move ever?" {Log} stuart taylor 17:54:03 08/01/02
  - Final Positon with Best Play Nolan Denson 16:00:26 07/31/02

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