PentaGrid

Description

PentaGrid is a strategic game played by two players on a 5 square by 5 square grid. Each player takes it in turn to insert a counter in any of the possible 20 slots around the edge of the grid, by clicking one of the 20 triangles. As each counter is inserted, adjoining counters already in play in the same column/row will be moved into adjacent positions on the grid. If there are already 5 counters residing in this column/row, then the counter in the opposite position to the new counter is removed from the grid. If this counter belongs to the opponent, then it may not return to the grid, at the position which it left, as the next move. To win a game, you must get five of your counters in line, horizontally, vertically or diagonally.