Brands and model families
A modern gateway into Fidelity, Mephisto, Novag, SciSys/Saitek, CXG, TASC, Yeno, Applied Concepts and other makers.
Open recordThe Maurice M. Ohayon ChessEval Collection.
Explore dedicated chess computers through documented models, individual specimens and original collection photographs. Manufacturer rooms and thematic sections connect machines with their technical and historical context.
Models, individual specimens and their histories are brought together through documented collection records.
Two ways to explore.
The Catalog documents models, variants and families. The Physical Inventory records individual holdings, including duplicates and numbered specimens. Dated collection notes and photographs are available in the historical documentation.
The Catalog documents models, variants and families. The Physical Inventory records individual holdings, including duplicates and numbered specimens. Dated collection notes and photographs are available in the historical documentation.
Collection rooms.
Rare machines
World Machine, TASC systems, Savant, Daimler-Benz, Travemunde and other rare or historically significant computers.
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Robots and automata
Motorized, self-moving and robotic chess systems, from Milton Bradley and Fidelity to Novag and Mephisto.
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Early dedicated computers
The first consumer chess computers and the beginning of the dedicated-machine era.
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World championship machines
Machines and programs connected to the world microcomputer chess championship era.
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ChessEval Journal
Articles, prototypes, collector meetings and historical context written around the collection.
Open recordRecently documented specimens.
Explore numbered machines, unusual editions and program variants through collection photographs, documented facts and original collector notes.
Elite Champion EC n°094
A numbered Elite Champion with its original packaging, manufacturer certificate and period documentation.
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Program X n°090
A numbered Elite Champion documented in the collection as a Program X machine upgraded for tournament-level operation.
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Elite Champion EC n°124
A second individually numbered Elite Champion, preserved with a fitted case and period manuals.
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Septennial, green board
An unusual green-board Septennial preserved with its impact printer, packaging and period documentation.
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Prestige: three program variants
Three Prestige computers preserved together in the collection, documented by the collector as three different program versions.
View the documented record →Share a machine, a repair or a memory.
Join the discussionDiscuss a computer, share a photograph or compare restoration experiences with other collectors.
ChessEval Collection Museum catalogue.
Explore 1,046 documentation records, including 244 detailed Museum records, across 78 manufacturer rooms. The separate Physical Inventory currently contains 917 registered entries; this is not a statement of the total collection size.