CXG 647W Sphinx Sierra Beautiful chess computer, very nice wood look Comes in original box which shows signs of age but in good condition All pieces are present, new and come in the original packaging This board has never been played Has been tested and works perfectly All booklets are included Includes a nice pouch to hold the pieces ELO rated at 1200 16 board LEDs Pressure sensory board Takes 4xAA battery or 9v adapter 64 levels of play CXG 603 Sphinx Concerto WITHOUT PIECES A much stronger device than the Sierra Comes without pieces but will work and look fine with the Sierra Pieces Comes in original box, which has damage but is serviceable Board is as good as new Has been tested and checked Manual included ELO 1860 16 board LEDs Pressure sensory board Takes 4 AA batteries or 9v adapter 100 levels of play Can give hints and warnings Analysis mode Much better and less common than the Sierra. Will be shipped in protective packaging