stuff related to MasterMind and solver strategies   Solver, Strategy and Theory The Computer as Master Mind by Donald E. Knuth (1976/77) An optimal Mastermind Strategy by Kenji Koyama, Tony W. Lai, Journal of Recreational Mathematics (1994) Investigations into the Master Mind™ Board Game by Toby Nelson (5 Feb 1999) Mastermind is NP-Complete by Jeff Stuckman and Guo-Qiang Zhang (2005) Mastermind in Wolfram MathWorld   MasterMind history Mastermind (board game) Wikipedia   ColorCode as well as this site's content (files, text and images), except for the files referred to in the links section, are licensed under the GPL v3.