Dave Chatten

IQ 148 Ŭl wihan Mensa ch'uri p'ŏjŭl

2015

Mensa Lateral Thinking Logical Deduction Dave Chatten and Carolyn Skitt

2010

Mensa presents the mind assaul

Mensa presents the mind assault course

1999

Mensa Mind Assault Course

1998

Mensa presents lateral thinking & logical deduction

1998

Lateral thinking & logical deduction