1. T. Khovanova, John Conway’s Wizards, available at: http://blog.tanyakhovanova.com/?p=29 (2008).
2. T. Khovanova, Simplified Wizards Puzzle, available at: http://blog.tanyakhovanova.com/?p=33 (2008).
3. T. Khovanova, Conways Wizards Generalized, available at: http://blog.tanyakhovanova.com/?p=36 (2008).