Object: Get all your ducks in a row -- horizontal, vertical, or diagonal. The row must pass through the center.
Ducks move horizontally or vertically and must move the maximum number of spaces available.
 
In the variant, you must get your ducks in a row in exactly eleven moves, the minimum number possible.
 
If you enjoy puzzles of this type, check out Entropy Puzzle and Entropy Cross.
If you like ducks, try Duck Pond or Ugly Duck.