Excalibur produced Einstein Chess Wizard, during its last year of operation, prior to bankruptcy and sale of their business to EB Electronics in July, 2009. The chess program was originally created at around the time when the H8 ROM’s were being phased out of production and is loosely based around a program originally used with Excalibur Mirage, Ivan, Grandmaster and Igor.
Initially the program was developed towards the end of 2002 for the 65C02 SPLB32A processor from the manufacturer Sunplus, which had more available ROM to allow for the incorporation of speech and sound effects in programs such as Excalibur II Ivan the Terrible, Excalibur Alexandra and Excalibur Deluxe Talking Touch Chess.
This created its own unique set of problems as Nelson’s H8 program had to be translated to work with this new processor which has a 6502 core. This processor had less available RAM therefore in order to make the program fit to these new lower specifications, adjustments were made to the program which included the removal of Nelson’s Attack Bit Map Tables and the commenting out of the Ponder routine, which were both important strength of play features that existed in Nelson’s H8 program. All these adjustments resulted in a new lesser strength chess program for use with the 65C02 SPLB36A1 with its own unique play behavior.
Excalibur Chess Express has no speech or sound effects and utilizes a later 8-bit CMOS processor manufactured by GeneralPlus
Excalibur Chess Express was manufactured for Excalibur Electronics by Wide Concepts Limited, Hong Kong.
Wide Concepts Limited established in 1998, specializes in developing and producing various kinds of electronic handheld games, electronic educational games and gift and premium items whose manufacturing likely occurs in China.
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