private static void ReadLine(string line)
{
var tokens = line.Split(" ");
if (tokens[0].Equals("uci"))
{
UciOut.SendUci();
}
else if (tokens[0].Equals("isready"))
{
Console.WriteLine("readyok");
}
else if (tokens[0].Equals("ucinewgame"))
{
TtUtil.Init(false);
TtUtil.ClearValues();
}
else if (tokens[0].Equals("position"))
{
Position(tokens);
}
else if (tokens[0].Equals("go"))
{
Go(tokens);
}
else if (tokens[0].Equals("ponderhit"))
{
Pondering = false;
if (_maxTimeExceeded)
{
NegamaxUtil.IsRunning = false;
}
}
else if (tokens[0].Equals("eval"))
{
UciOut.Eval(_cb, _threadData);
}
else if (tokens[0].Equals("setoption"))
{
if (tokens.Length > 4)
{
SetOption(tokens[2], tokens[4]);
}
}
else if (tokens[0].Equals("quit"))
{
Environment.Exit(0);
}
else if (tokens[0].Equals("stop"))
{
NegamaxUtil.IsRunning = false;
}
else
{
Console.WriteLine("Unknown command: " + tokens[0]);
}
}
public static void Main()
{
var cb = ChessBoardInstances.Get(0);
// read all fens, including score
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\violent.epd", false, true);
Console.WriteLine("Fens found : " + fens.Count);
// NegamaxUtil.isRunning = true;
EngineConstants.Power2TtEntries = 1;
TtUtil.Init(false);
double totalPositions = 0;
double sameScore = 0;
long totalError = 0;
var watch = new Stopwatch();
watch.Start();
foreach (var entry in fens)
{
ChessBoardUtil.SetFen(entry.Key, cb);
if (cb.CheckingPieces == 0)
{
continue;
}
totalPositions++;
var searchScore = NegamaxUtil.CalculateBestMove(cb, ThreadData, 0, 1, Util.ShortMin, Util.ShortMax, 0);
TtUtil.ClearValues();
var qScore = QuiescenceUtil.CalculateBestMove(cb, ThreadData, Util.ShortMin, Util.ShortMax);
if (searchScore == qScore)
{
sameScore++;
}
else
{
var error = searchScore - qScore;
// if (error > 500) {
// System.out.println(searchScore + " " + qScore);
// QuiescenceUtil.calculateBestMove(cb, threadData, Util.SHORT_MIN, Util.SHORT_MAX);
// }
totalError += error;
}
}
var averageError = (int)(totalError / (totalPositions - sameScore));
Console.WriteLine($"{sameScore / totalPositions:f4} {averageError}");
Console.WriteLine("msec: " + watch.ElapsedMilliseconds);
}
private static void Go(string[] goCommandTokens)
{
// go movestogo 30 wtime 3600000 btime 3600000
// go wtime 40847 btime 48019 winc 0 binc 0 movestogo 20
Statistics.Reset();
TimeUtil.Reset();
TimeUtil.SetMoveCount(_cb.MoveCounter);
MaxDepth = EngineConstants.MaxPlies;
Pondering = false;
TtUtil.Init(false);
var ttEntry = TtUtil.GetEntry(_cb.ZobristKey);
if (ttEntry.Key != 0 && ttEntry.Flag == TtUtil.FlagExact)
{
TimeUtil.SetTtHit();
}
// go
// go infinite
// go ponder
if (goCommandTokens.Length != 1)
{
for (var i = 1; i < goCommandTokens.Length; i++)
{
if (goCommandTokens[i].Equals("infinite"))
{
// TODO are we clearing the values again?
TtUtil.ClearValues();
}
else if (goCommandTokens[i].Equals("ponder"))
{
Pondering = true;
}
else if (goCommandTokens[i].Equals("movetime"))
{
var s = goCommandTokens[i + 1];
TimeUtil.SetExactMoveTime(int.Parse(s));
}
else if (goCommandTokens[i].Equals("movestogo"))
{
var s = goCommandTokens[i + 1];
TimeUtil.SetMovesToGo(int.Parse(s));
}
else if (goCommandTokens[i].Equals("depth"))
{
var s = goCommandTokens[i + 1];
MaxDepth = int.Parse(s);
}
else if (goCommandTokens[i].Equals("wtime"))
{
if (_cb.ColorToMove != ChessConstants.White)
{
continue;
}
var s = goCommandTokens[i + 1];
TimeUtil.SetTotalTimeLeft(int.Parse(s));
}
else if (goCommandTokens[i].Equals("btime"))
{
if (_cb.ColorToMove != ChessConstants.Black)
{
continue;
}
var s = goCommandTokens[i + 1];
TimeUtil.SetTotalTimeLeft(int.Parse(s));
}
else if (goCommandTokens[i].Equals("winc") || goCommandTokens[i].Equals("binc"))
{
var s = goCommandTokens[i + 1];
TimeUtil.SetIncrement(int.Parse(s));
}
}
}
TimeUtil.Start();
Task.Run(SearchTask);
}