Clover - UCI chess engine
Author: Luca Metehau Rating JCER=3462
3.3.1
This release comes with a bug fix. Basically, I wasn't updating the pinned pieces in case of null moves and when the ttMove was the best move, resulting in possible illegal moves (Which is weird, because I accidentally caught this bug and it should be pretty frequent). Hopefully there aren't any more issues, if so please let me know!
Additionally, this comes with a new net trained on a bit more data and some movepick tweaks, which should be around 10-15 elo at best.
Thank you Jörg Burwitz for letting me know previous version was crashing and apologies to all other testers that tested Clover and it crashed.
Nevertheless, even if the previous version didn't crash for you, I recommend using this release.
Individual statistics: Clover 3.2.1 - 191 games (+100,= 66,- 25), 69.6 %
Critter 1.6a : 11 (+ 7,= 2,- 2), 72.7 %
Fritz 17 : 2 (+ 1,= 1,- 0), 75.0 %
Xiphos 0.6.1 : 2 (+ 0,= 2,- 0), 50.0 %
Komodo 13.02 : 1 (+ 0,= 1,- 0), 50.0 %
Zahak 10.0 : 1 (+ 0,= 1,- 0), 50.0 %
Gogobello 3.0 : 2 (+ 2,= 0,- 0), 100.0 %
Xoron b196 : 2 (+ 2,= 0,- 0), 100.0 %
Toga IV : 1 (+ 0,= 1,- 0), 50.0 %
Tucano 10.00 : 2 (+ 0,= 2,- 0), 50.0 %
RofChade 3.0 : 6 (+ 1,= 3,- 2), 41.7 %
Chareth 0.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
Slowchess 2.9 : 2 (+ 0,= 1,- 1), 25.0 %
Fisherov chess monk 1.2 : 2 (+ 0,= 1,- 1), 25.0 %
Nalwald 16 : 4 (+ 4,= 0,- 0), 100.0 %
Black Marlin 7.0 : 2 (+ 0,= 2,- 0), 50.0 %
Roc 2022Aug18 : 2 (+ 2,= 0,- 0), 100.0 %
Mantissa 3.7.2 : 2 (+ 1,= 1,- 0), 75.0 %
Wasp 6.00 : 2 (+ 1,= 0,- 1), 50.0 %
Dragon 3.1 by Komodo : 4 (+ 0,= 1,- 3), 12.5 %
Weiss 2.1 dev : 4 (+ 0,= 3,- 1), 37.5 %
Booot 7.0 : 2 (+ 0,= 2,- 0), 50.0 %
Ethereal 13.88 Plus NNUE : 2 (+ 0,= 2,- 0), 50.0 %
Arche 0.3.5 : 2 (+ 2,= 0,- 0), 100.0 %
StockNemo 5.7.0.0 : 2 (+ 2,= 0,- 0), 100.0 %
Marvin 6.1.0 : 1 (+ 0,= 1,- 0), 50.0 %
Fire NN 1072022 : 2 (+ 0,= 1,- 1), 25.0 %
Frozenight 5.1.0 : 2 (+ 1,= 1,- 0), 75.0 %
Fornax 4.0 : 2 (+ 2,= 0,- 0), 100.0 %
Crystal 5 KWK : 4 (+ 0,= 3,- 1), 37.5 %
Stash 34.0 : 5 (+ 3,= 2,- 0), 80.0 %
Eubos 2.15 : 2 (+ 2,= 0,- 0), 100.0 %
Kuma 1.0 : 2 (+ 2,= 0,- 0), 100.0 %
MadChess 3.2 beta : 4 (+ 4,= 0,- 0), 100.0 %
Viridithas 5.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
Caissa 1.4 : 6 (+ 2,= 3,- 1), 58.3 %
Rebel 16 : 2 (+ 0,= 2,- 0), 50.0 %
Stockfish 15.1 : 4 (+ 0,= 2,- 2), 25.0 %
Kookaburra 1.02 : 2 (+ 0,= 0,- 2), 0.0 %
Peacekeeper 0.12 : 2 (+ 2,= 0,- 0), 100.0 %
RubiChess 20221203 : 4 (+ 0,= 4,- 0), 50.0 %
Lc0 0.29.0-rc1 : 2 (+ 0,= 1,- 1), 25.0 %
Alexandria 3.1.0 : 9 (+ 4,= 4,- 1), 66.7 %
Sting Black Hole 2 : 7 (+ 6,= 1,- 0), 92.9 %
RapChess 2022-12-08 : 4 (+ 4,= 0,- 0), 100.0 %
Minic 3.31 : 5 (+ 1,= 4,- 0), 60.0 %
Polyfish 221210 : 2 (+ 0,= 1,- 1), 25.0 %
Cdrill 2000 : 6 (+ 6,= 0,- 0), 100.0 %
Quabla 04-04-2021 : 2 (+ 2,= 0,- 0), 100.0 %
Mayhem 7.9 : 10 (+ 9,= 1,- 0), 95.0 %
Peacekeeper 1.0 : 3 (+ 3,= 0,- 0), 100.0 %
Chess-rs 0.1.1 : 2 (+ 2,= 0,- 0), 100.0 %
Knightx 3.6a : 6 (+ 5,= 1,- 0), 91.7 %
Avalanche 1.3.1 : 4 (+ 3,= 1,- 0), 87.5 %
Cheese 3.1.1 : 1 (+ 0,= 0,- 1), 0.0 %
Igel 3.2.0 : 2 (+ 0,= 2,- 0), 50.0 %
BlackCore 4.0 : 2 (+ 1,= 1,- 0), 75.0 %
Eubos 2.17 : 2 (+ 2,= 0,- 0), 100.0 %
Minic 3.32 : 2 (+ 0,= 1,- 1), 25.0 %
Leorik 2.3 : 2 (+ 2,= 0,- 0), 100.0 %
Viridithas 6.0.0 : 2 (+ 1,= 1,- 0), 75.0 %
RapChess 2022-12-10 : 2 (+ 2,= 0,- 0), 100.0 %
Charisma : 2 (+ 0,= 0,- 2), 0.0 %
Nemorino 6.0 : 2 (+ 0,= 2,- 0), 50.0 %
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