Rare opportunity to purchase a Vintage Elite A/S ChallengerSeries Chess Computer (EAS model) manufactured by Fidelity Electronics, inMiami, Florida, USA in the early 1980's.This chess computer is running the Glasgow Engine; thewinner of the 1983 Mircocomputer Chess Competition in 1983.This Electronic Chess Set is in BETTER THAN NEW condition.The main board was recently professionally restored and updated (see pics). Theboard has new EPROMS from Atmel (typical lifespan for EPROMs are ab...out 30years, so if you are looking for a set to last, look no further) with theupdated Glasgow engine (originally shipped with the Budapest engine, theGlasgow was available as an upgrade for older systems and standard for new ones1 year later), a new CPU (CMOS) which runs faster and cooler (no heat sinkneeded) for longer life (the original CPU was double-clocked to run a 4MHz, this runs native at 4MHz), and a bunch of new capacitors. This is a large and elegant chess set with greatly defineddetailed pieces displaying exceptional craftsmanship, hence highly sought afterby collectors. The set is great for both beginners and advanced playersallowing you to learn and play alone against the built-in computer. The playerhas a choice between eight different player levels, one being the lowest, eightbeing the highest level. The computer automatically senses your move (auto sensory)as the moved chess pieces with the magnets built into each chess piece isautomatically detected by the board. The computer calculates the next move andshows the coordinates of the next move on the built in LED display. This chess computer comes complete with1. The original power supply, and a backup power supply(hard to find). 2. TWO (2) sets of original chess pieces. 3. A bound copy of the original manual. 4. An external speaker. (The set has been gently modified to play audio outputthrough an external speaker (see pictures). You don't need the speaker to usethe system (since the internal speaker still works), but the volume was neververy loud.The board works flawlessly. You can see a brief video onyoutube, just search for "Fidelity Chess Movie July 1st" Or Message Me if youhave any questions!Package weighs 18 lbs and 0 ounces and measures about 26 by25 by 5 inches. Shipping will be calculated based on location.There is no handling charge.