Logicians, hats, and numbers (in Logic) Rating: 3.90 Posted on 2006-08-14 by Avin (No Solution Yet, 21 Comments)
Marbles Bonanza II (in Just Math) Rating: 4.25 Posted on 2005-06-21 by Avin (Solution Posted, 33 Comments)
Hat Exchange (in Algorithms) Rating: 3.00 Posted on 2005-02-24 by Avin (Solution Posted, 8 Comments)
