- o["Write Debug Log"] << Option(false, on_logger);
- o["Write Search Log"] << Option(false);
- o["Search Log Filename"] << Option("SearchLog.txt");
- o["Book File"] << Option("book.bin");
- o["Best Book Move"] << Option(false);
- o["Contempt Factor"] << Option(0, -50, 50);
- o["Min Split Depth"] << Option(0, 0, 12, on_threads);
- o["Threads"] << Option(1, 1, MAX_THREADS, on_threads);
- o["Hash"] << Option(32, 1, 16384, on_hash_size);
- o["Clear Hash"] << Option(on_clear_hash);
- o["Ponder"] << Option(true);
- o["OwnBook"] << Option(false);
- o["MultiPV"] << Option(1, 1, 500);
- o["Skill Level"] << Option(20, 0, 20);
- o["Emergency Move Horizon"] << Option(40, 0, 50);
- o["Emergency Base Time"] << Option(60, 0, 30000);
- o["Emergency Move Time"] << Option(30, 0, 5000);
- o["Minimum Thinking Time"] << Option(20, 0, 5000);
- o["Slow Mover"] << Option(80, 10, 1000);
- o["UCI_Chess960"] << Option(false);
+ // at most 2^32 clusters.
+ constexpr int MaxHashMB = Is64Bit ? 131072 : 2048;
+
+ o["Debug Log File"] << Option("", on_logger);
+ o["Contempt"] << Option(21, -100, 100);
+ o["Analysis Contempt"] << Option("Both var Off var White var Black var Both", "Both");
+ o["Threads"] << Option(1, 1, 512, on_threads);
+ o["Hash"] << Option(16, 1, MaxHashMB, on_hash_size);
+ o["Clear Hash"] << Option(on_clear_hash);
+ o["Ponder"] << Option(false);
+ o["MultiPV"] << Option(1, 1, 500);
+ o["Skill Level"] << Option(20, 0, 20);
+ o["Move Overhead"] << Option(30, 0, 5000);
+ o["Minimum Thinking Time"] << Option(20, 0, 5000);
+ o["Slow Mover"] << Option(84, 10, 1000);
+ o["nodestime"] << Option(0, 0, 10000);
+ o["UCI_Chess960"] << Option(false);
+ o["UCI_AnalyseMode"] << Option(false);
+ o["SyzygyPath"] << Option("<empty>", on_tb_path);
+ o["SyzygyProbeDepth"] << Option(1, 1, 100);
+ o["Syzygy50MoveRule"] << Option(true);
+ o["SyzygyProbeLimit"] << Option(6, 0, 6);