Dr. Raymond Riley
Dr. Robert Molina
Math professor Robert Molina has a puzzle obsession. From Sudoku to Rubik’s cubes, he has a vast collection of puzzles in his home—and always brings a table-full to the annual math taco dinner.
Mind puzzles are a branch of his expert field, combinatorics, which is the study of discrete (and usually finite) objects. In other words, it deals with arrangement of items like books on a self, or numbers in a defined set.