Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: testposition Arasan-Phalanx

Author: Richard Pijl

Date: 00:12:57 06/18/04

Go up one level in this thread


On June 17, 2004 at 23:54:25, Jon Dart wrote:

>From a testgame Arasan-Phalanx:
>
>[D] r7/2R2N1r/8/N2k2p1/3Pnp2/4p3/6P1/R5K1 b - -
>
>Black played Rah8. This seems to be quite hard for some engines
>to find: a fairly recent Crafty version didn't select it after
>10 minutes search on my Athlon XP2500+. On other hand, if I
>force Rah8, and then search for White I get a -2.42 score
>under a minute.
>
The Baron 1.3.1 beta 5 on a Xeon 2.8 with 100Mb hash selected Rah8 in just over
13 seconds and the score rises with each following ply:

 ply       time        nodes   score  pv
  4(11).   0:00.05     10728   +1.35  Ra8-f8 Rc7-d7 Kd5-e6 Nf7-d6 Rh7xd7
  5(14)&   0:00.09     25368   +1.35  Ra8-f8 Rc7-d7 Kd5-e6 Nf7-d6 Rh7xd7 Nd6xe4
  5(15).   0:00.13     35132   +1.35  Ra8-f8 Rc7-d7 Kd5-e6 Nf7-d6 Rh7xd7 Nd6xe4
  6(16)&   0:00.28     88360   +1.23  Ra8-f8 Rc7-d7 Kd5-e6 Nf7xg5 Ne4xg5 Rd7xh7
                                      Ng5xh7 Na5-c6
  6(18).   0:00.70    218773   +1.23  Ra8-f8 Rc7-d7 Kd5-e6 Nf7xg5 Ne4xg5 Rd7xh7
                                      Ng5xh7 Na5-c6
  7(19)-   0:01.83    583334   +0.88  Ra8-f8 (Rc7-e7) (e3-e2) (Re7-e5) (Kd5xd4)
(Nf7xg5)
                                      (Rh7-c7) (Re5xe4) (Kd4-d3)
  7(19)&   0:01.92    616187   +0.81  Ra8-f8 Rc7-e7 Rf8xf7 Re7-e5 Kd5xd4 Na5-c6
                                      Kd4-c4 Ra1-a4 Kc4-c3 Ra4xe4 Kc3-d3
  7(19).   0:02.16    691137   +0.81  Ra8-f8 Rc7-e7 Rf8xf7 Re7-e5 Kd5xd4 Na5-c6
                                      Kd4-c4 Ra1-a4 Kc4-c3 Ra4xe4 Kc3-d3
  8(18)&   0:02.56    836078   +1.03  Ra8-f8 Rc7-e7 Rf8xf7 Re7-e5 Kd5xd4 Na5-c6
                                      Kd4-d3 Nc6-b4 Kd3-e2 Re5xe4 Rf7-e7
  8(20).   0:04.03   1310486   +1.03  Ra8-f8 Rc7-e7 Rf8xf7 Re7-e5 Kd5xd4 Na5-c6
                                      Kd4-d3 Nc6-b4 Kd3-e2 Re5xe4 Rf7-e7
  9(22)&   0:05.34   1779082   +0.88  Ra8-f8 Rc7-e7 Rf8xf7 Re7-e5 Kd5xd4 Na5-c6
                                      Kd4-d3 Nc6-b4 Kd3-d2 Ra1-a2 Kd2-c3 Re5xe4
                                      Rf7-e7
  9(23)&   0:13.39   4452340   +1.08  Ra8-h8 Nf7xh8 Rh7xc7 Nh8-g6 Ne4-g3 Ng6-f8
                                      Rc7-f7 Nf8-g6 Rf7-g7 Ng6-f8 (Kd5xd4)
  9(23).   0:13.84   4588758   +1.08  Ra8-h8 Nf7xh8 Rh7xc7 Nh8-g6 Ne4-g3 Ng6-f8
                                      Rc7-f7 Nf8-g6 Rf7-g7 Ng6-f8 (Kd5xd4)
 10(23)&   0:27.28   8782052   +1.23  Ra8-h8 Nf7xh8 Rh7xc7 Nh8-g6 Ne4-g3 Ra1-b1
                                      Ng3-e2 Kg1-f1 Ne2xd4 Na5-b3 Rc7-c2
 10(24).   0:33.81  10945519   +1.23  Ra8-h8 Nf7xh8 Rh7xc7 Nh8-g6 Ne4-g3 Ra1-b1
                                      Ng3-e2 Kg1-f1 Ne2xd4 Na5-b3 Rc7-c2
 11(24)&   0:46.75  15387974   +1.48  Ra8-h8 Nf7xh8 Rh7xc7 Nh8-g6 Ne4-g3 Ra1-b1
                                      Rc7-h7 Rb1-b5 Kd5xd4 Na5-c6 Kd4-c4 Rb5-b4
                                      Kc4-d3



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.