int countClosedPositions (struct minePosition** mineMatrix, int nRows, int nCols)
{
  int numberOfClosedPositions = 0;
  for(int i = 0, i < nRows){
  	for(int j = 0, j < nColumns){
  		minePosition p = mineMatrix[i][j];
  		if(p.open == true){
  			numberOfClosedPositions++;
  		}
  	}
  }
  return numberOfClosedPositions;
}