You are blindfolded and taken into a room with two tables. There are coins scattered on one table. You are told the number of coins which are heads up on this table. The second table is empty. You are allowed to move coins from one table to another or flip them. Before you leave the room, there must be an equal number of coins heads up on each table. How can you do it?
Sunday, April 1, 2012
Please email your solutions to firstname.lastname@example.org.
This puzzle is based on a puzzle from folklore:
- Haspel, Aaron. "How to solve it." God of the Machine. 22 Nov. 2006. University of Cambridge. 5 Apr. 2012 <http://www.godofthemachine.com/?p=596>. Problem 2.