Pathfinder game in Java -- 2

2 Player pathfinder game where a game board size is chosen and players take it in turns to turn squares their colours. You have to chose squares only next to the square of the previous go and the aim is to be the last move. This also must have a Graphical interface where 2 players can play and test cases to show program being tested. There will be a more detailed pdf to look at and contact me for more information. Need this done in a couple of days if possible.