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Subject: Re: Fear my opteron!

Author: Robert Hyatt

Date: 06:40:30 01/12/04

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On January 12, 2004 at 07:59:23, Anthony Cozzie wrote:

>On January 12, 2004 at 05:37:48, Tord Romstad wrote:
>
>>On January 11, 2004 at 21:48:50, Anthony Cozzie wrote:
>>
>>>The position is Topalov-Bareev from one of the rapid playoffs.
>>
>>FEN, please?
>>
>>Tord
>
>[D]r6r/k4pp1/pq2p2p/1p1n4/3N3P/1R6/PPP1QPP1/2KR4 w - - 25
>
>One of the reasons I like this position is that Crafty needs some minutes to
>come up with the solution.  Gothmog should have no trouble: this position is
>very sensitive to checks in qsearch.  If you do recapture extensions you will
>find it even earlier. . . .
>
>anthony

What hardware are you using with Crafty?  IE here is my dual xeon:

               10    19.00   1.02   1. Qe5 g6 2. Rf3 Rh7 3. Qe4 Qb7 4.
                                    Qd3 Rd8 5. h5 Nb4 (s=3)
               10    22.15   1.09   1. Qf3 Qc7 2. Rxb5 Rac8 3. Qa3 Nf4
                                    4. Ra5 Ne2+ 5. Kb1 Nxd4 6. Rxa6+ Kb8
                                    7. Rxd4 Qxc2+
               10    29.55     ++   1. Nxb5+!!
               10    31.26   2.13   1. Nxb5+ axb5 2. Rxb5 Qc6 3. Rdxd5
                                    exd5 4. Qd3 Rab8 5. Qa3+ Qa6 6. Qc5+
                                    Rb6 7. Ra5 Rb8 8. Rxa6+ Kxa6
               10->  31.56   2.13   1. Nxb5+ axb5 2. Rxb5 Qc6 3. Rdxd5
                                    exd5 4. Qd3 Rab8 5. Qa3+ Qa6 6. Qc5+
                                    Rb6 7. Ra5 Rb8 8. Rxa6+ Kxa6 (s=7)
               11    32.56     ++   1. Nxb5+!!
               11    34.53   3.44   1. Nxb5+ axb5 2. Rxb5 Qc6 3. Rdxd5
                                    exd5 4. Qe7+ Ka6 5. Rb3 Qb6 6. Rxb6+
                                    Kxb6 7. Qd6+ Ka7 8. Qxd5 (s=6)
               11->  35.51   3.44   1. Nxb5+ axb5 2. Rxb5 Qc6 3. Rdxd5
                                    exd5 4. Qe7+ Ka6 5. Rb3 Qb6 6. Rxb6+
                                          12    53.07   3.96   1. Nxb5+ axb5 2.
Rxb5 Rhc8 3. Rxb6
                                    Kxb6 4. Qg4 g6 5. a4 Rc6 6. Qe4 Rd8
                                    7. b4
               12->  55.11   3.96   1. Nxb5+ axb5 2. Rxb5 Rhc8 3. Rxb6
                                    Kxb6 4. Qg4 g6 5. a4 Rc6 6. Qe4 Rd8
                                    7. b4
               13     1:06   4.03   1. Nxb5+ axb5 2. Rxb5 Rhc8 3. Rxb6
                                    Kxb6 4. Qf3 f6 5. Qb3+ Kc5 6. c4 Nc7
                                    7. a4 Rd8 8. Qb7
               13->   1:11   4.03   1. Nxb5+ axb5 2. Rxb5 Rhc8 3. Rxb6
                                    Kxb6 4. Qf3 f6 5. Qb3+ Kc5 6. c4 Nc7
                                    7. a4 Rd8 8. Qb7
              time=1:37  cpu=372%  mat=0  n=220406650  fh=92%  nps=2.25M
              ext-> chk=11285743 cap=476467 pp=18175 1rep=733573 mate=40209
              predicted=0  nodes=220406650  evals=56173816
              endgame tablebase-> probes=0  hits=0
              SMP->  split=10562  stop=1411  data=17/64  cpu=6:04  elap=1:37


That isn't "some minutes".  :)




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