The Chessmaster 4000 Turbo[a] is a 1993 chess video game developed and published by The Software Toolworks.

The game was called a solid, flexible, and easy-to-use chess program.

[5] Mikrobitti said it is "more in-depth chess program than its predecessors, suitable for all skill levels.

[12] Electronic Entertainment wrote: "Stunning visuals, extensive artificial personalities, remarkable playing strength, and excellent natural language advice—you get it all in Chessmaster 4000 Turbo."

PC Joker said that compared to Chessmaster 3000 the playing strength is only slightly improved, and it does not quite reach the level of Mephisto Genius 2.0 or Mephisto Gideon but should still be enough for most players.