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The executables for Windows are in the /Windows subdirectory in the zip file you received. More than 70 evaluation and search changes.Reduced queen value and queen mobility, which were too high in 9.3.A low setting will make Komodo play conservatively a high setting will encourage risky play. Added “Dynamism” which lets the user control the weighting of dynamic evaluation terms.Added “Contempt for White” command to improve analysis.Better handling of blocked positions tied with improved Contempt.Added “suppress” command to suppress communication between the engine and GUI useful in remote connections or very fast games.Increased weight on all “dynamic” terms.Major re-tuning of most eval and many search parameters.corrected a castling rights issue in reading fen positions.engine now ignores repeated commands from GUIs.
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Over 100 other improvements throughout the software Persistent Hash: save and restore analysis Chess 960 (Fischer Random Chess) support Improved search performance (much better time-to-depth) improved understanding of attacks on the king There are two important new features “Contempt for White” and “Dynamism” described below. Champion Hikaru Nakamura by 2.5 to 1.5 despite giving him rook for knight, f2 pawn, f7 pawn, and four move handicaps. It is an improved version of the one that defeated World Champion Candidate and U.S.
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Against Komodo 9 we have a plus 52 elo result after 1759 single-thread games at 2’ + 1”, and a whopping plus 77 elo result on four threads after just 110 games.
The gains appear to be slightly than this in MP mode, using two, four, or many threads. Komodo 9.4 further improves the Komodo 9 series, with a gain over 9.3 of 15 elo based on 10,300 games at 2’ + 1” on single thread. It is also an upgraded version of the engine that decisively defeated two strong Grandmasters in serious six game matches despite giving odds of rook for knight or the f7 pawn. Komodo 9.3 is a slightly improved version of Komodo 9.3x which won the TCEC Season 8 Championship, widely considered to be the unofficial world computer chess championship. Against Komodo 8 our tests show gains of nearly 100 elo on 1 and 4 threads. Komodo 9.3 is about 10 elo stronger than Komodo 9.2 based on the rating lists plus our own testing. Komodo 9.2 is about 15 elo stronger than Komodo 9.1, probably more than this against weaker engines (and humans) due to our new “contempt” feature described below. Komodo 9.1 is about 15 elo stronger than Komodo 9 based on averaging several rating lists. Independent testing by CEGT puts the gain in the 47 to 65 Elo range at intermediate time controls, depending on the exact time control and number of cores. Komodo 9 is approximately +50 Elo stronger than Komodo 8 on one core according to the independent IPON test as well as our own internal testing, with the gain increasing with more cores, to about 60 Elo on 4 cores based on our own tests. Komodo has won highly respected engine tournaments such as TCEC, CCT, and the World Blitz and World Rapid championships. Komodo 9 is an improvement over all previous Komodo versions and supports multi-core computers and endgame tablebases. These instructions are for Komodo 9 through Komodo 9.4 versions.
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