1969 established in Munich by Manfred Hegener and Florian Glaser for the production of semiconductors.4 Other chess computers from the manufacturer Hegener & Glaser.↑ Menschliche Spielweise und der erste Blick from Das Mephisto 3-Projekt, - Wiki.↑ 4th World Microcomputer Chess Championship from the ICGA Tournament Site.↑ Ab Dezember neuer Mikroschachcomputer für 350 Mark:: Mephisto unterm Weihnachtsbaum, October 7, 1979, Computerwoche 36/1979 (German).The Mephisto Concept, A "Humanlike" Thinking Chess Program. ↑ Mephisto I (pdf) hosted by Hein Veldhuis (Dutch, German).6-8, Gerhard Piel: Neue Programme von neuen Programmierern.(German) hosted by Hein Veldhuis
#MEPHISTO CHESS EXPLORER PDF#
Schachcomputer: Tricks und Trug, Der Spiegel 50/1980, December 08, 1980, (German) pdf.Ab Dezember neuer Mikroschachcomputer für 350 Mark:: Mephisto unterm Weihnachtsbaum, October 7, 1979, Computerwoche 36/1979 (German).an attacked piece into security, so that the piece is really safe and not bound or overloaded. the program does not attack no more on suspicion, but pursues moves with high hit rate. Realistic moves (good, if the opponent selects the best countermove): The position occurs in depths greater than 8.ON BEHALF are this moves, which attack heavy pieces, threaten check, etc. Only moves with a probability hit rate larger than 30% are selected. Optimistic moves (good, if the opponent has only the second-best answer): The combination reached a depth of 4-8.Humans call some of these moves sacrifices. Nearly every move promising somehow is selected, even if the probability of success is quite small. Utopian moves (good, if the opponent does not do anything): A position occurs in a depth of approximately 1-3.
MEPHISTO 3 divides the decision tree into 3 sections Translated quote from Das Mephisto 3-Projekt : The programs of Henne and Nitsche were famous for their very small and selective "humanlike" search trees. Mephisto III-S won the the World Microcomputer Chess Champion title at WMCCC 1984 in Glasgow (shared with three other computers). While the default Mephisto III Briquette model as well the first modular Mephisto MM I, first released in 1983, still had an 8-bit RCA CMOS processor, now with 32 KiB ROM and 4 KiB RAM, the Mephisto III-S and Mephisto Excalibur were shipped with Motorola's 68000 16-bit processor. It was further possible to compile the program for different target processors. The new Mephisto III program was written in Compiler Description Language CDL2 for high abstraction with chess pattern terms, but only 1.5-2.0 times slower than assembly. The first plies of a brute-force alpha-beta search were extended by a selective layer of plausible moves, no quiescence search, but SOMA like exchange evaluation. The programs were based on Nitsche's former program Orwell - a mixture of Shannon Type A and Type B strategy. The opening book was supplied by Ossi Weiner. The mighty Mephisto I and II chess computers with their unique Briquette design ran on the RCA 1802 8-bit CMOS processor with 6 KiB of a 8KiB ROM and one KiB of RAM, the Mephisto II, released in 1981, doubled the memory sizes. Horváth sold the whole stuff to Hegener & Glaser, a four year collaboration started in 1980. Nitsche and Henne soon founded their own company P1 GmbH to focus on computer chess. Horváth, which was discovered by Elmar Henne, who contacted his fellow student Thomas Nitsche from Technical University of Munich, who was already a well known chess programmer. The Mephisto project started with an ordinary 2 line classified column ".we are looking for a chess programmer.
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