public int calculatePoints(int player, int row, int col) {
		int pointsScored = 0, squares = 3,
			ri = row, rk = row, ci = col, ck = col;
		
		for (int i = 0, k = 2; i < squares; i++, k--) {
			// horizontal
			if (getStone(row, ci-2) == player && getStone(row, ck-1) == player) 
				pointsScored++;
			
			// vertical
			if (getStone(ri-2, col) == player && getStone(rk-1, col) == player)
				pointsScored++;
			
			// diagonal l>r
			if (getStone(ri-2, ci-2) == player && getStone(rk-1, ck-1) == player)
				pointsScored++;
			
			// diagonal r>l
			if (getStone(ri+2, ci-2) == player && getStone(rk-1, ck-1) == player)
				pointsScored++;
			
			ri += i; rk += k; ci += i; ck += k;
		}
		
		return pointsScored;
	}