Dear Teacher,

     When I read a chess book, I meet a sentence like this:

      His plan is to get his Queen nearer the Black Pawn.

      My question:  is it correct?  Please explain its structure:  what's the function of nearer the Black Pawn?

      Another sentence from  a chess book:

      You can only play the Open Sicilian (a sort of opening in chess) against strong (150+) opponents if you're prepared to do a lot of work.

       My quiestion is:  what's the meaning of (150+)?  How to pronounce it?

       Thanks in advance.