Hex-A-Gone

Hex-A-Gone is a solitaire puzzle game played on a hexagonal grid in a rhombus shape, five on a side. There are 16 pieces: four each numbered 1-4. A move consists of jumping a piece over exactly the matching number of adjacent pieces. One of the jumped pieces is removed. The goal is to leave as few pieces as possible. A starting position is given but others can be used.