Chicago Opener also known as Red Hot Mama is a card routine in which the back of a freely selected card changes color (e.g. from blue to red) and is set aside. A second card is selected and the red-backed card is seen to have transformed into the second selection.
Michael Ammar notes that this routine meets Dai Vernon's criterion for clarity of effect in the two simple transformations. Whit Haydn notes that the blending of two methods to achieve the same effect (in this case the transformation of a card) increases the mystery and impossibility.
- Al Leech's Red Hot Mama by Jim Ryan in Jim Ryan Close-up: Entertaining Card Quickies written by Philip Willmarth (1980)
- Red Hot Mama by Michael Ammar in DVD Easy to Master Card Miracles, Vol. 1 (1994).