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Subject: CT 15 and evaluation problem

Author: Kurt Utzinger

Date: 00:20:26 11/02/03

A good example where Chess Tiger 15 needs much more time than
most other engines to evaluate the position as a draw:

[D]8/8/r7/3K4/3Q4/5p2/5p2/6k1 b - - 0 1

Shredder 7.04 - Chess Tiger 15.0 (NBE 2003)
8/8/r7/3K4/3Q4/5p2/5p2/6k1 b - - 0 1
Analyses on P4 1.8/24 MB hash


Analysis by Chess Tiger 15.0:
*****************************

106...Ra5+ 107.Ke6 Rg5 108.Qe3 Rb5 109.Qd4 Rb4 110.Qg7+ Kh1 111.Qh7+ Kg2
112.Qg6+ Kh2 113.Qh6+ Kg3 114.Qc1 Rb6+ 115.Kd7
  -+  (-7.74)   Depth: 8   00:00:00  75kN, tb=82
  ³  (-0.27)   Depth: 18   00:03:14  71815kN, tb=103431


Analysis by Amy 0.8.1:
*********************

 Kg2 114.Qd2
  =  (0.00)   Depth: 11   00:00:08  4022kN
  =  (0.00)   Depth: 14   00:00:53

Analysis by Amyan 1.59:
***********************

106...Rg6 107.Ke5 Kg2 108.Qd2 Rg4 109.Kd5
  ±  (1.04)   Depth: 11   00:00:12  5252kN
  =  (0.00)   Depth: 13   00:02:47  90752kN


Analysis by AnMon5.21:
**********************

106...Ra5+ 107.Ke4
  ±  (0.97)   Depth: 1   00:00:00
  ±  (0.97)   Depth: 1   00:00:00
106...Rd6+ 107.Kxd6
  ±  (0.90)   Depth: 1   00:00:00
  =  (0.00)   Depth: 14   00:00:49  3001kN


Analysis by Anaconda 1.0:
*************************

106...Ra4 107.Qg7+ Kh1 108.Qh6+
  =  (0.12)   Depth: 4/15   00:00:00  58kN, tb=340
  =  (0.00)   Depth: 11/29   00:00:47  7603kN, tb=102112


Analysis by Aristarch 4.21:
***************************

106...Rg6 107.Ke5 Kg2 108.Qd2 Rg4
  =  (0.25)   Depth: 4/9   00:00:00
  =  (0.00)   Depth: 17/36   00:00:51  27011kN


Analysis by Crafty 19.03:
*************************

106...Rg6 107.Ke5 Kg2 108.Qd2 Rg4 109.Kf5 Rh4 110.Qg5+ Kh3 111.Qc1 Rh5+ 112.Ke6
Kg2 113.Qb2
  ³  (-0.34)   Depth: 4/10   00:00:00
  =  (0.00)   Depth: 18/37   00:00:53  29354kN, tb=89953


Analysis by Deep Sjeng 1.5:
***************************

106...Ra4 107.Qg7+ Kh1 108.Qh6+ Kg2 109.Qg5+ Kh1 110.Qh6+ Kg2 111.Qg5+ Kh1
112.Qh6+
  =  (0.00)   Depth: 5/15   00:00:00
  =  (0.00)   Depth: 16/36   00:00:45  19349kN, tb=30426


Analysis by Dragon 4.2:
***********************

106...Ra5+ 107.Ke6 Ra4 108.Qg7+ Kh2 109.Qe5+ Kg2 110.Qg5+ Kh3 111.Qb5 f1B
  ³  (-0.56)   Depth: 14   00:00:51  26295kN
  =  (-0.17)   Depth: 15   00:03:07  95861kN


Analysis by SOS.3 for Arena:
****************************

106...Ra5+ 107.Ke6 Ra4 108.Qg7+ Kh2 109.Qh7+ Kg2 110.Qg6+ Kh2 111.Qh6+ Kg1
112.Qg6+ Kh2
  ²  (0.54)   Depth: 6/13   00:00:00  6kN
  =  (0.00)   Depth: 18/34   00:00:07  3291kN


Analysis by Tao 5.4:
********************

106...Ra5+ 107.Ke6 Rg5 108.Qe3 Rg8 109.Kf5 Rf8+ 110.Kg6 Rf4 111.Kg5 Ra4 112.Kf5
Ra5+ 113.Ke4 Kg2 114.Qxf3+ Kg1
  -+  (-2.50)   Depth: 8/16   00:00:01  167kN
  =  (0.00)   Depth: 17/34   00:01:33  20810kN


Analysis by Yace Paderborn:
***************************

106...Rd6+ 107.Kxd6 Kh1 108.Qh4+ Kg1 109.Qg4+ Kh1 110.Qh4+ Kg1 111.Qg4+ Kh1
112.Qh4+
  +-  (1.98)   Depth: 3   00:00:00
  =  (0.00)   Depth: 15/37   00:00:20  12163kN

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

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