Your current cell is the one with a magenta circle. Click a direction button (up, down, left, right) to move into the next cell.
You can move in any of the four directions if the cells surrounding you are empty (white cells).
You cannot move in diagonal directions.
You cannot move into trees (green triangles).
You cannot move across rivers unless you find a bridge (yellow cells).
You can move over a red star; this increases your score.
You cannot move over a block (brown cells), but you may push them away to clear your path.
Choose a direction and then click "push" to generate a pushing force in the specified direction. If a block is in the chosen direction and is adjacent to your current cell, the block will move over one cell in the same direction, provided that the cell which the block is going to move into is either an empty cell or a bridge.
When you click "push", the pushing force is in the direction used by the current step.
You cannot push two adjacent blocks with one push.
You cannot push a block into a tree, the river or the wall.
You cannot push a block over a star, unless you picked it up first.
You cannot slide a block side-to-side.
You cannot push a block in diagonal directions.
Nothing will happen if your move is illegal.
Pick up the red star by moving over it, and the star will disappear. One star gives you one point.
The game board setup is based on the suggestion by Budd (2000)
, with modifications.