Ron: In the position below, White is up a pawn but because of opposite colored bishops the position is a draw: But in this instance, if we are interested in comparing the results of having an NNUE-based evaluation function with having a classic, hand-crafted evaluation function, then whether one of the engines has a faulty time-management function needs to be taken into account.īut remember that these rating differential are for Blitz time control games only, Rapid and Classic time control games may give different results. I don't know if CCRL and/or CEGT count time forfeits for the engine that lost on time or not (I suspect they do), and after all, a faulty time management function is a problem for the engine and, if it results in a time forfeit, so be it. So Stockfish 12's time control loss-adjusted 0.542 fractional score translates into "only" a +30 Elo rating point gain. So, excluding the losses on time by both engines, the time control loss-adjusted results were: So the tournament results might not be a true indication of using the NNUE-based evaluation function in Stockfish 12 compared to using the classic hand-crafted evaluation function in Stockfish 11. Most of these were won by Stockfish 12, 14 of them or 87.5% While some losses on time can be expected, the disproportionate amount of games lost on time by Stockfish 11 might indicate that there is an inherent defect in Stockfish 11's time management function which was corrected in Stockfish 12.
However, I did notice a seemingly large number of games lost on time by both engines, 16, i.e. So Stockfish 12's.0.590 fractional score translates into a +65 Elo rating point gain. Stockfish 11 100-game tournament at Blitz time controls (5 mins/game + 6 secs/move increment starting at move 1) over several nights. Prior to these CCRL and CEGT numbers being available I ran a Stockfish 12 vs.
REFINE SEARCH: White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Stockfish wins | Stockfish loses Stockfish 2.0.1, operated by User: kutztown46, played in the CG.com Masters - Machines Invitational (2011) as Kutztown46 / Stockfish.ĭ14 Queen's Gambit Declined Slav, Exchange Variation SmallFish app for iPad/iPhone with iOS 8.0 or later. Various installations have supported set-ups such as 8 Gbytes for a hashtable with an 8-core processor under its UCI protocol.
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Stockfish runs on Linux, Windows or Mac OS X platforms, as well as mobile platforms such as the iPhone, iPad and iPod touch. It won TCEC season 6 in 2014, defeating Komodo in the superfinal. It is now developed by the Stockfish community, using Gary Linscott's Fishtest testing framework to test new code.Īs of 2016, Stockfish is one of the two strongest chess engines in the world, with Komodo (Computer), and the strongest open-source engine. Stockfish originated as a fork of Tord Romstad's Glaurung (Computer), improved by Marco Costalba, Romstad and Joona Kiiski.
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