Here is another electronic chess computer that can give most people a good game. The Novag Turquoise is 2294 USCF rated. It is powered by a Hitachi H8/300 processor, press sensory board and a LCD display to show the moves. This chess computer can be powered by a 9V adapter.
The TURQUOISE has 128 levels. It has 16 LEDs to show the moves.