// GameScorer whiteScorer = GameScorer.getDefaultScorer();
GameScorer scorer1 = GameScorer.getDefaultScorer();
GameScorer scorer2 = new GameScorer();
scorer2.addScorer(new MaterialScorer());
scorer2.addScorer(new BishopPairScorer());
scorer2.addScorer(new PawnStructureScorer());
scorer2.addScorer(new KnightScorer());
scorer2.addScorer(new BishopMobilityScorer());
scorer2.addScorer(new RookScorer());