PSP is titled Chessmaster: The Art of Learning (compared to the PC version, it also includes Spanish, Italian, German and Dutch). It includes numerous tutorials by International Master Joshua Waitzkin and Grandmaster Larry Christiansen for players of all skill levels, 900 most important chess games in history, 190 personalities of opponents, children puzzles with Raving Rabbids and other minigames. A Polish translation has been added. 2008: Chessmaster Live for Xbox 360 Chess engine The Chessmaster chess engine is called The King, written by Johan de Köning of the Netherlands. It was introduced in Chessmaster 4000; the first edition featured a chess engine written by David Kittinger, who went on to develop the engines for Interplay's USCF Chess, WChess for the German company Millennium 2000, and Sierra Entertainment's Power Chess, Majestic Chess and Disney's Aladdin Chess Adventures. The second edition had an engine designed by Kate and Dan Spracklen of Sargon fame. According to the September 2009 Swedish Chess Computer Association (SSDF) rating list, Chessmaster 9000 had an estimated Elo rating of 2718 on an Athlon-1200 PC. If multiple versions of other engines are stripped out of this list, Chessmaster 9000 ranked 14th among all engines tested. , Chessmaster 9000 remained the most recent version rated by the SSDF. The latest version, Chessmaster 11th Edition, was released in 2007, and has lagged behind more current chess engines. CCRL placed it 121st on its August 2020 list (15th among engines only available via purchase). The King engine allows users to create new playing styles, called "personalities", by manipulating several dozen different settings, such as King Safety, Pawn Weakness, Randomness, Mobility and others. Individual piece values can also be adjusted. Chessmaster 9000, for example, features over 150 different personalities ranging from International Grandmaster strength down to Stanley, a chimpanzee who, in most situations, plays completely random moves. The Stanley chimpanzee personality inspired the Stanley Random Chess Variant. Notable games Larry Christiansen vs. Chessmaster 9000 (September 2002), annotated at GameKnot: Game 1, Game 2, Game 3, Game 4 Chessmaster won the four-game match against Christiansen held in September 2002, by a score of 2½–1½. The Chessmaster program was operated by John Merlino, the Project Manager of Chessmaster at the time of the match. Four different personalities were used in the match, the first three of which were based on famous human Grandmasters: Alexander Alekhine, Bobby Fischer, and Mikhail Botvinnik. The final game of the