public void TestFitness()
 {
     Grid g = new Grid(9,10);
     EvolutionarySolver es = new EvolutionarySolver();
     Assert.AreEqual(71,es.GetFitness(g));
     g.Place(8,g.GetEmptyPositions().First());
     Assert.AreEqual(70, es.GetFitness(g));
     g.Place(8, g.GetEmptyPositions().First());
     Assert.AreEqual(2069, es.GetFitness(g));
 }