GoNu-Korean Traditional Game

Korea traditional game GoNu!
GoNu is Korea board game.
Lets start GoNu!
1. At start, Four stones are placed at both ends.
2. Turn by turn, you can move a stone to one right, left, back or forth point. You cant move a stone diagonally and the stone cant jump over another stone.
3. If two same color stones surround one opponent stone horizontally or vertically, the surrounded stone is killed.
4. When the opponent stone is at the corner. You can kill it by putting two stones at the points next to the corner.
5. If there is only one opponent stone, You Win!