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Subject: Re: Strange endgame play by S8

Author: mike schoonover

Date: 05:38:38 01/28/05

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hi richard,
i dont have S8 so i let ruffian at it.
ruffian prefers Qb2 with a score of 0.00.
when i forced Qf4 you can see what ruffian thought of that.
regards
mike

Logfile: Fri Jan 28 07:31:25 2005
Total hash size 128M
Open book: ruffian.bok
Book version 0.3 created Sun Sep 29 02:01:08 2002
59116 book moves, depth=60
ruffian: [xboard]
Initializing tablebases: /tb
{protover 2}
[protover 2]
[accepted done]
[accepted setboard]
[accepted analyze]
[accepted setboard]
[accepted myname]
[accepted done]
[accepted ping]
[new]
[random]
[level 0 3 0]
[post]
[hard]
[ping 1]
[force]
[setboard 8/8/8/2K5/1Q3pP1/4nP2/3pk3/8 w - - 0 1]
[analyze]
  8/8/8/2K5/1Q3pP1/4nP2/3pk3/8 w - -
  Depth   Time  Score    Best line
  13-->   1.36   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  14/27   1.72   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  14-->   2.31   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  15/29   3.05   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  15-->   4.25   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  16/33   5.17   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  16-->   7.02   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  17/35   8.53   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  17-->  12.47   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  18/37  15.41   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  18-->  21.83   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  19/40  26.39   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  19-->  43.30   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  20/42  53.42   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
  20-->   1:20   0.00    Qb2 Ke1 Qc3 Ke2 Qb2
{b4f4}

Time: 1:38, cpu 97.43%, nodes 94321470, nps 960797
Hash: 64M, used 99%, hits 42%
EGTB: probs 36404, hits 36404

[b4f4]
  8/8/8/2K5/5QP1/4nP2/3pk3/8 b - -
  Depth   Time  Score    Best line
  10/24   1.20   2.13    ... d1=Q Qe4 Kf2 g5 Qc1+ Kb4 Qb2+ Ka4 Qa2+ Kb4 Nd5+
                         Kc5 Qa5+ Kc6 Ne3 g6
  10-->   1.22   2.13    ... d1=Q Qe4 Kf2 g5 Qc1+ Kb4 Qb2+ Ka4 Qa2+ Kb4 Nd5+
                         Kc5 Qa5+ Kc6 Ne3 g6
  11/27   5.36   2.21    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kb5 Qd6 Ka4 Qa6+ Kb4 Qb6+
                         Ka3 Qa5+ Kb2 Qb6+ Ka2 Qc5
  11-->   5.37   2.21    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kb5 Qd6 Ka4 Qa6+ Kb4 Qb6+
                         Ka3 Qa5+ Kb2 Qb6+ Ka2 Qc5
  12/29  12.44   2.29    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kb5 Nf1 Qc6 Qd3+ Kb6 Ne3
                         Qe4 Qd7 Ka6 Nd5
  12-->  12.45   2.29    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kb5 Nf1 Qc6 Qd3+ Kb6 Ne3
                         Qe4 Qd7 Ka6 Nd5
  13/31  21.61   2.33    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kc5 Qa5+ Kc6 Qa6+ Kc7 Nc4
                         Qf4 Qa5+ Kb8 Qb4+ Ka7 Kg1
  13-->  21.66   2.33    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kc5 Qa5+ Kc6 Qa6+ Kc7 Nc4
                         Qf4 Qa5+ Kb8 Qb4+ Ka7 Kg1
  14/34  49.34   2.35    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kc5 Qc8+ Kb5 Qb8+ Ka4 Qa7+
                         Kb3 Qc5 Qf4 Nd5 Qe4 Kg1 f4
  14-->  49.45   2.35    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kc5 Qc8+ Kb5 Qb8+ Ka4 Qa7+
                         Kb3 Qc5 Qf4 Nd5 Qe4 Kg1 f4
  15/37   1:33   2.33    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kc5 Qa5+ Kc6 Qc3+ Kb5 Qb3+
                         Kc6 Qa3 Kb6 Qd6+ Kb5 Nd1 Qc2+ Kg3 Qf5
  15-->   1:35   2.33    ... d1=Q Qe4 Qd8 Kc6 Kf2 Kc5 Qa5+ Kc6 Qc3+ Kb5 Qb3+
                         Kc6 Qa3 Kb6 Qd6+ Kb5 Nd1 Qc2+ Kg3 Qf5
{exit}

Time: 2:14, cpu 98.91%, nodes 125317225, nps 928619
Hash: 64M, used 99%, hits 34%
EGTB: probs 34087, hits 34087

[exit]
[new]
[random]
[level 0 3 0]
[post]
[hard]
[ping 2]



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

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