ESP Biography



EFE ARAS, Puzzle lover sharing his love for neat puzzles




Major: EECS

College/Employer: UC Berkeley

Year of Graduation: G

Picture of Efe Aras

Brief Biographical Sketch:

Not Available.



Past Classes

  (Look at the class archive for more.)


How To: Puzzlehunt in Splash Fall 18
We'll talk about what puzzle hunts are, look at examples of puzzles and common solving techniques, and then try solving puzzles together!


Exciting math puzzles (and their exciting math)! in Splash Spring 18
Suppose we give three people black and white hats by tossing a fair coin; then we ask individually what their hat color is. They can either guess it or pass. Now, how can you maximize your chances that one person gets the correct answer if we need to make sure that noone is wrong? One caveat: noone hears the other peoples' answer. What if we had 7 people? 255? How about the following: 10 people are lined up tallest the shortest on a line, and we ask from back to front what their hat color is; how can you ensure that at most one person gets their hat color correctly? What if we had 100 people? 1000? Maybe this puzzle? We have n people, and m possible colors for hats, and m < n; how can you make sure that at least one person guesses their hat color correctly? There are loads more puzzles (Alice and Bob are sending a suitcase to each other with padlocks; 100 prisoners in a room opening 50 boxes to find their number; the classic blue eyes-green eyes puzzle; the checkerboard puzzle; the last card trick of the game of SET), and each of these relies on various interesting branches of mathematics and computer science! (Abstract algebra, combinatorics, algorithms, information theory, probability, logic, random graph theory etc.) While we cannot hope to explore all of these puzzles to a sufficient depth (and the associated mathematical fields) in an hour, we can do a few of these to get a taste of some of the puzzles!


How To: Puzzle Hunt! in Splash Spring 18
We'll talk about what puzzle hunts are, look at examples of puzzles and common solving techniques, and then try solving puzzles together! We can also talk about how to write your own puzzles!