anchor.diff:  * that expects reproducible results within a specific time limit on specific hardware.
   * that has had serious participation from the academic and/or enterprise Operations Research community.
   
  -These realistic competitions provide an objective comparison of Planner with competitive software and academic research.
  +Realistic contests provide an objective comparison of Planner with competitive software and academic research.
   
   The source code of all these examples is available in the distribution zip under [path]_examples/sources_
   and also in git under [path]_optaplanner/optaplanner-examples_.
  
positive.code: .Examples Overview
  [cols="1,1a,1a,1a,1a", options="header"]
  |===
  |Example |Domain |Size |Competition? |Special features used
  
  |<<nQueens,N queens>>
  |* 1 entity class
  
negative.code: 
  Planner has several examples. In this manual we explain mainly using the _n_ queens example and cloud balancing example. So it is advisable to read at least those sections.
  
  Some of the examples solve problems that are presented in academic contests. The `Contest` column in the following table lists the contests. It also identifies an example as being either _realistic_ or _unrealistic_ for the putpose of a contest. A _realistic contest_ is _an official, independent contest_:
  
  * that clearly defines a real-word use case.
  * with real-world constraints.
  