I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
Thursday, September 17, 2009
Color the Chess Board
You can cover all 64 squares on a chess board with 32 dominoes. Take out the two corners (a8 and h1) and try to cover the board with 31 dominoes. It will never work.
Which color do the leftover squares always end up being?