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Subject: Re: Wanted: Endgame Test Positions - or this

Author: Rafael Andrist

Date: 05:03:30 09/08/01

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On September 08, 2001 at 05:36:36, Eduard Nemeth wrote:

>
>[D]8/8/1P1k3p/p2p1pp1/P1r5/1R1K1PP1/7P/8 b - - 0 1
>
>1...Rb4! (draw)
>

This position seems to be very easy for "Wilhelm". It considers Rb4 first at ply
3 and definitely chooses it at ply 5:

1 ply 	Tc4xa4	N:       25 	Q:        7 	H:        0 	Wert:    -1.18

	Tc4xa4

2 ply 	Tc4xa4	N:      160 	Q:       64 	H:       25 	Wert:    -1.01

	Tc4xa4 b6-b7

3 ply 	Tc4-b4	N:      748 	Q:      499 	H:      226 	Wert:     0.14

	Tc4-b4 Tb3xb4 a5xb4

4 ply 	Tc4-c8	N:     3485 	Q:     1623 	H:     1210 	Wert:     0.44

	Tc4-c8 b6-b7 Tc8-b8 Tb3-b6+

5 ply 	Tc4-b4	N:    11717 	Q:     5404 	H:     4891 	Wert:     0.50

	Tc4-b4 Tb3xb4 a5xb4 b6-b7 Kd6-c7

6 ply 	Tc4-b4	N:    33376 	Q:    12529 	H:    15039 	Wert:     0.28

	Tc4-b4 Tb3xb4 a5xb4 a4-a5 Kd6-c6 h2-h3

7 ply 	Tc4-b4	N:   112616 	Q:    59167 	H:    44985 	Wert:     0.19

	Tc4-b4 Tb3xb4 a5xb4 a4-a5 Kd6-c6 g3-g4 f5-f4

8 ply 	Tc4-b4	N:   268136 	Q:   123285 	H:   118773 	Wert:     0.25

	Tc4-b4 Tb3xb4 a5xb4 h2-h4 g5xh4 g3xh4 Kd6-c6 a4-a5

Tiefe V:          	        8 ply; Tiefe N:          	       14 ply; Tiefe Q:
     	       23 ply; Alpha-Cutoffs     	    44791; Beta-Cutoffs      	   143646;
Nullmove-Cutoffs  	    60.30 %; Hash: Store       	   186841; Hash: Acc +
	   118773; Hash: Acc -       	   149093; Hash: Zug gut     	    16714; Knoten
N:         	   268136; Knoten Q:         	   123285; Knoten total:
391421; Verbrauchte Zeit: 	       21 sec; Geschwindigkeit: 	    18639 nod/sec;

Rafael B. Andrist



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