Please do NOT post your answer, but do say if you think you have solved the puzzle and how long it took. Solution on Monday.
You and a friend have a pile of 15 pennies and decide to play a little game. You will each take turns removing pennies from the pile. On each turn you or your friend can take 1, 2, or 3 pennies. The loser is the person who takes the last penny. You are allowed to go first. How many pennies should you take?
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED
and is available for the Kindle
and USA here
) and on the iBookstore
in the USA here
). You can try 101 of the puzzles for free here