public void testEngineAgainstAlphaBeta(MockScorer scorer, int level, MockBoard b) {
ABWithHashMoveEngine engine =
new ABWithHashMoveEngine(scorer, MoveContainerFactory.buildMoveContainers(level + 1));
AlphaBetaEngine alphaBetaEngine =
new AlphaBetaEngine(scorer, MoveContainerFactory.buildMoveContainers(level + 1));
Board b1 = b.copy();
Board b2 = b.copy();
LOGGER.info("Alpha Beta level={}", level);
MovePath abMovePath = alphaBetaEngine.search(b1, level);
List<Move> alphaBetaMoveList = abMovePath.asList();
LOGGER.info(
"AlphaBetaEngine score: {} Move Path: {}",
abMovePath.getScore(),
MockBoard.movesToString(alphaBetaMoveList));
LOGGER.info("Alpha Beta With hash level={}", level);
MovePath mp = engine.iterativeSearch(b2, level);
List<Move> engineMoveList = mp.asList();
LOGGER.info(
"Alpha Beta with Hash Move score: {} Path: {}",
mp.getScore(),
MockBoard.movesToString(engineMoveList));
assertThat(alphaBetaMoveList, is(equalTo(engineMoveList)));
}
@Test
public void eyeBallEngineSpeed() {
Board b =
JSONParser.getFromSetup(
Side.BLACK,
new String[] {
"r,n,b,q,_,k,_,r,",
"p,p,_,P,b,p,p,p,",
"_,_,p,_,_,_,_,_,",
"_,_,_,_,_,_,_,_,",
"_,_,B,_,_,_,_,_,",
"_,_,_,_,_,_,_,_,",
"P,P,P,_,N,n,P,P,",
"R,N,B,Q,K,_,_,R,"
});
ABWithHashMoveEngine aBWithHashMoveEngine =
new ABWithHashMoveEngine(new StaticScorer(), MoveContainerFactory.buildMoveContainers(10));
final long now = System.currentTimeMillis();
MovePath movePath = aBWithHashMoveEngine.iterativeSearch(b, 6);
final long timeTaken = System.currentTimeMillis() - now;
List<Move> moveList = movePath.asList();
LOGGER.info(
"Alpha Beta with Hash Move, Move Path: {}", PGNParser.toAlgebraicNotation(moveList, b));
LOGGER.info("Time Taken: {}", timeTaken);
// 1... Nxd1 2.dxc8=Q Qxc8 3.Kxd1 h5 4.g4
}