match used the default "Chessmaster" personality. Christiansen won the first game, lost the second and third games, and the fourth game resulted in a draw. Platforms To date, various versions of Chessmaster have appeared on Amiga, Apple II, Apple IIGS, Atari 8-bit, Atari ST, Amstrad CPC, ZX Spectrum, MSX, Commodore 64, DOS, PC, Macintosh, Nintendo Entertainment System, Super Nintendo Entertainment System, Game Boy, Game Boy Color, Game Boy Advance, Nintendo DS, Sega Genesis (as a Sega Channel exclusive), Sega Game Gear, PlayStation, PlayStation 2, Xbox, and mobile phones. Early Macintosh versions Chessmaster 3000 and 4000 were developed by Sebastian Rapport and Troy Heere that leveraged the Kittinger and de Koning engines respectively. Later Macintosh versions were ported by Feral Interactive, and the latest Macintosh version available is Chessmaster 9000. Ubisoft also offers a downloadable version of the game, Chessmaster Challenge, which differs from Chessmaster 10th Edition in its simplified interface and scaled-down tutorials. The more recent editions of Chessmaster include both 2D and 3D designs, and a large number of different boards and themed chess piece designs. The interface was revised for Chessmaster 10th Edition and features animated 3D sets in which the pieces "walk" between squares and have simulated battles when a piece is taken, reminiscent of Battle Chess or the Wizard's chess set from Harry Potter. Chessmaster 10th Edition also comes packed with a pair of red and blue glasses to view the set in "enhanced 3D". An Xbox Live Arcade version with Xbox Live multiplayer and Xbox Live Vision camera support for the Xbox 360 called Chessmaster Live was released on 30 January 2008, but is no longer available. Reception The combined sales of the Chessmaster series had reached 1 million copies by September 1996. The series surpassed 5 million units in sales by 2002, making it the highest-selling computer chess series ever at the time. In 1989, Computer Gaming World found Chessmaster 2100s features "the clear winners" over Sargon 4, in 1992 reported that Chessmaster 3000 had added "a lot" to its predecessors, with new tutorial features and a variety of computer opponents making the game "a truly impressive sequel", and in 1994 approved of Chessmaster 4000 Turbos new AI "personalities" based on historical chess players. 4000 Turbo received a perfect 10 out of 10 score from Electronic Entertainment. In Japan, Famitsu magazine scored the 1991 Super Famicom version of the game a 23 out of