Difference between revisions of "Doctor?"
GerdIsenberg (talk | contribs) (Created page with "'''Home * Engines * Doctor?''' FILE:Doctor Who logo 1963-1967.png|border|right|thumb| Doctor Who <ref>[https://en.wikipedia.org/wiki/Doctor_Who Doctor Who...") |
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=Program Characteristics= | =Program Characteristics= | ||
<ref>[http://www.ajedrez-de-estilo.com.ar/int/Products/engines/doctor/index.htm Doctor? by Dr. Hans-Joachim Kraas and Dr. Gunther Schrüfer] (as of June 2018, dead link)</ref> | <ref>[http://www.ajedrez-de-estilo.com.ar/int/Products/engines/doctor/index.htm Doctor? by Dr. Hans-Joachim Kraas and Dr. Gunther Schrüfer] (as of June 2018, dead link)</ref> | ||
| − | * [[STC-Search]] (solution tree cost oriented search) <ref>[[Günther Schrüfer]] ('''1988'''). ''[http://www.worldcat.org/oclc/246856479&referer=brief_results Minimax-Suchen : Kosten, Qualität und Algorithmen]''. | + | * [[STC-Search]] (solution tree cost oriented search) <ref>[[Günther Schrüfer]] ('''1988'''). ''[http://www.worldcat.org/oclc/246856479&referer=brief_results Minimax-Suchen : Kosten, Qualität und Algorithmen]''. [https://en.wikipedia.org/wiki/Technical_University_of_Braunschweig Technical University of Braunschweig] (German)</ref> |
* Ample chess [[Knowledge|knowledge]] in [[Evaluation Function|evaluation function]] and [[Search|search]] heuristics. | * Ample chess [[Knowledge|knowledge]] in [[Evaluation Function|evaluation function]] and [[Search|search]] heuristics. | ||
* [[Strategy|Positional]] playing style with [[Tactics|tactical]] surprises. | * [[Strategy|Positional]] playing style with [[Tactics|tactical]] surprises. | ||
| − | * Written | + | * Written in [[C]] |
* Implemented on [[Atari ST]], [[IBM PC|PC]] ([[Unix]], [[Windows|Win3.x, Win95/98, WinNT]]), [[Macintosh|Mac]], [[Sun]], BiiN | * Implemented on [[Atari ST]], [[IBM PC|PC]] ([[Unix]], [[Windows|Win3.x, Win95/98, WinNT]]), [[Macintosh|Mac]], [[Sun]], BiiN | ||
| Line 22: | Line 22: | ||
=External Links= | =External Links= | ||
| + | ==Chess Program== | ||
* [https://www.schachversand.de/de/doctor-2-0-engine-macintosh.html Doctor? 2.0 / Engine MacIntosh - Schachprogramm - Software] - [[Schachversand Niggemann]] | * [https://www.schachversand.de/de/doctor-2-0-engine-macintosh.html Doctor? 2.0 / Engine MacIntosh - Schachprogramm - Software] - [[Schachversand Niggemann]] | ||
* [http://computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Doctor%203.0#Doctor_3_0 Doctor 3.0] in [[CCRL|CCRL 40/4]] | * [http://computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Doctor%203.0#Doctor_3_0 Doctor 3.0] in [[CCRL|CCRL 40/4]] | ||
| + | ==Misc== | ||
| + | * [https://en.wikipedia.org/wiki/Doctor_Who Doctor Who from Wikipedia] | ||
| + | * [http://tardis.wikia.com/wiki/Douglas_Adams Douglas Adams | Tardis, The Doctor Who Wiki] | ||
=Refererences= | =Refererences= | ||
<references /> | <references /> | ||
| − | |||
'''[[Engines|Up one Level]]''' | '''[[Engines|Up one Level]]''' | ||
| + | [[Category:Douglas Adams]] | ||
| + | [[Category:Fiction]] | ||
Latest revision as of 21:43, 8 November 2018
Doctor Who [1]
Doctor?,
is the commercial successor of Bobby II by Hans-Joachim Kraas and Günther Schrüfer. It was market by ChessBase as 16-bit engine in 1995 as analysis engine for ChessBase/Windows 1.0, and in 1998 as 32-bit add-on engine of the Fritz 5.32 package [2] [3]. Doctor? is written in C and was therefor available for various hardware platforms and operating systems. According to Ingo Althöfer, who used Doctor? in his triple-brain experiments, it was the first engine which implemented a k-best mode. Doctor?'s strengths were mainly due to strategy and unsual pawn structures in endgames.
The engine uses fractional plies with a depth increment in iterative deepening of 1/3 ply [4].
Contents
Program Characteristics
- STC-Search (solution tree cost oriented search) [6]
- Ample chess knowledge in evaluation function and search heuristics.
- Positional playing style with tactical surprises.
- Written in C
- Implemented on Atari ST, PC (Unix, Win3.x, Win95/98, WinNT), Mac, Sun, BiiN
Forum Posts
- Doctor module for Fritz/Chessbase? by MLK and RJP, rgcc, December 07, 1997
- Re: Doctor module for Fritz/Chessbase? by Ingo Althöfer, rgcc, December 08, 1997
- Doctor! 3.0, # nodes searched, and knowledge versus speed by Roger, rgcc, January 29, 1999
- Doctor 3.0? by Swaminathan Natarajan, CCC, April 01, 2009
External Links
Chess Program
- Doctor? 2.0 / Engine MacIntosh - Schachprogramm - Software - Schachversand Niggemann
- Doctor 3.0 in CCRL 40/4
Misc
Refererences
- ↑ Doctor Who logo used from 1963 to 1967, Cultural icon from Wikipedia
- ↑ Fritz 5.32 - mehr als nur ein Update! by Peter Schreiner (German), Schachclub Leinzell
- ↑ Doctor? 2.0 / Engine MacIntosh from Schachversand Niggemann
- ↑ Re: Doctor module for Fritz/Chessbase? by Ingo Althöfer, rgcc, December 08, 1997
- ↑ Doctor? by Dr. Hans-Joachim Kraas and Dr. Gunther Schrüfer (as of June 2018, dead link)
- ↑ Günther Schrüfer (1988). Minimax-Suchen : Kosten, Qualität und Algorithmen. Technical University of Braunschweig (German)
