A very interesting chess computer. Released in 1981 the Conic Korchnoi was one of the earliest auto response boards and one of few non-wooden ones to be released. It’s other claim to fame is endorsement by Victor Korchnoi, who was twice beaten by Antoly Karpov for the World Championship. I believe it is the only chess computer he endorsed.

During level setting it has the endearing feature of signalling the level setting number in lights on the board. See levels 2 and 4 in the photos below.

It is a rarely found chess computer though three have been sold on Ebay in the last three years. This one came from Tasmania, Australia.