Hiarcs chess explorer review4/3/2023 ![]() ![]() Dragon also won the 2021 TCEC Swiss championship (normal chess). Latest testing that shows Dragon 2.5 convincingly defeated Stockfish 14 in a 3200 game bullet chess Fischerandom match. Our testing also shows that Dragon is especially strong in Fischerandom (960) chess, which was confirmed when Dragon won the TCEC FRC 2021 championship, and again in our To Dragon is due to the embedded neural network providing much more accurate evaluation and also in some sense gaining an extra ply or so of search by seeing some tactics that a normalĮval can not see. ![]() The improvement over Dragon 2 is due to a larger, "smarter", and better-trained net, to deeper search due to search enhancements, and to parameter tuning. Over Komodo 14.1, the last pre-dragon release (Nov 2020), are in the 250 to 300 Elo range depending on threads, mode, and game type, all at CCRL blitz time control (2' + 1"). The reinforcement learning phase for Dragon is in its infancy, but is already showing great promise.ĭragon 2.5 is a huge strength improvement over Dragon 2, roughly 60 elo on four threads and 70 elo on one, even more in MCTS mode and for playing Fischerandom (chess960). With architectures and data generation of billions of positions. Training an NNUE network based on this evaluation was both an advantage and a challenge, requiring experimentation Komodo has a great deal of chess knowledge in its evaluation. Dragon uses NNUE (Neural Network Updated Efficiently) technology, originally developed for the game of shogi. ![]()
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