EN Engine Test 2023

[Eduard]

Well, ShashChess GZ is not an engine just to solve some special test positions. I play with it on PlayChess. The engine is absolutely TOP.

By the way, MinimumThinkingTime is important to me, because in extreme time trouble, the engine on the servers often moves in 0.00s. If you don't play online, then you don't need this.

The strategy parameters I implemented are also interesting for online players (but also for analysis) who have very strong hardware.

I need an engine that is strong at playing and analyzing opening theory (not chess puzzles), and ShashChess GZ is very strong at that.

[Eduard]

I would like to mention again: the search code of ShashChess GZ EXT and EXT-S, differs significantly from ShashChess GZ in many lines. It's not just two lines (and UCI Options) or anything. The search is clearly different. Test it and have fun!

[Eduard]

6. May 20223

https://solistachess.jimdosite.com/testing/

New to the list are Stockfish 050523, Corchess 4 050523 and CatroPOLY v1.8 060523.

Corchess is now called "Corchess 4".

CatroPOLY v1.8 060523 is a Stockfish dev clone with many adjustable parameters and support for BIN and CTG (ChessBase) openings books. The engine is very unbalanced and the parameters don't harmonize well.

GUI Powerfritz 18, Ryzen 3900X, 20 Threads, Hash 4 GB, all 3456men Syzygy. Time 60s for move:

1) Diamond II Analyzer, Result: 104 out of 110 = 94.5%. Diamond II.txt (ZIP)
2-3) ShashChess GZ EXT-S, Result: 103 out of 110 = 93.6%. ShashChess GZ EXT-S.txt (ZIP)
2-3) Leptir Analyzer, Result: 103 out of 110 = 93.6%. Leptir Analyzer.txt (ZIP)
4-6) ShashChess GZ EXT, Result: 101 out of 110 = 91.8%. ShashChess GZ EXT.txt (ZIP)
4-6) Corchess 4 050523, Result: 101 out of 110 = 91.8%. Corchess 4 050523.txt (ZIP)
4-6) Little Beast sl, Result: 101 out of 110 = 91.8%. Little Beast sl.txt (ZIP)
7-8) ShashChess GZ, Result: 100 out of 110 = 90.9%. ShashChess GZ.txt (ZIP)
7-8) Crystal 5 KWK, Result: 100 out of 110 = 90.9%. Crystal 5 KWK.txt (ZIP)
9) SugaR AI Iccf SE, Result: 99 out of 110 = 90.0%. SugaR AI Iccf SE.txt (ZIP)
10) SugaR AI SE, Result: 97 out of 110 = 88.1%. SugaR AI SE.txt (ZIP)
11) Eman 8.91, Result: 96 out of 110 = 87.2%. Eman 8.91.txt (ZIP)
12-13) Stockfish 050523, Result: 94 out of 110 = 85.4%. Stockfish 050523.txt (ZIP
12-13) Blue Marlin 15.7, Result: 94 out of 110 = 85.4%. Blue Marlin 15.7.txt (ZIP)
14) Dark SisTer 5.0, Result: 93 out of 110 = 84.5%. Dark SisTer 5.0.txt (ZIP)
15) Lc0 v0.30Beta BT2, RTX 3080+3080ti, 86 out of 110. Lc0 v0.30 BT2, 3080+3080ti.txt (ZIP)
16-17) CatroPOLY v1.8 060523, Result: 85 out of 110 = 77.2%. CatroPOLY v1.8.txt (ZIP)
16-17) Lc0 v0.30.0-rc1 BT2, RTX 4070ti, 85 out of 110 = 77.2%. Lc0 v0.30.0-rc1.txt (ZIP)
18) Lc0 v0.30.0-rc1 BT2, RTX 3060m, cache-opt=true, 78 out of 110. Download.txt (ZIP)
19-20) Lc0 v0.30Beta BT2, RTX 3080ti, 75 out of 110 (68%). Lc0 v0.30.0-BT2 RTX 3080ti.txt (ZIP)
19-20) Lc0 v0.30.0-rc1 BT2, RTX 3060m, 75 out of 110 (66.3%). Lc0 v0.30.0-rc1.txt (ZIP)
21) Rebel-16.2, Result: 50 out of 110 = 45.4%. Rebel-16.2.txt (ZIP)
22) Powerfritz 18, Result: 45 out of 110 = 40.9%. Powerfritz 18.txt (ZIP)

[Dann Corbit]

what is diamond ii analyzer

[Eduard]

This is my latest analysis engine. For private tests you can get them, see text on my homepage:
https://solistachess.jimdosite.com/solista-news/

[Marek Soszynski]

I would like to mention again: the search code of ShashChess GZ EXT and EXT-S, differs significantly from ShashChess GZ in many lines. It's not just two lines (and UCI Options) or anything. The search is clearly different. Test it and have fun!

So, EXT and EXT-S are your own modifications?

[Eduard]

Yes.

[Eduard]

New now Lc0 v0.31.0 dev with T1 network on RTX 3060m (mobile) GPU.

GUI Powerfritz 18, Ryzen 3900X, 20 Threads, Hash 4 GB, all 3456men Syzygy. Time 60s for move:

1-2) ShashChess GZ EXT-S, Result: 103 out of 110 = 93.6%. ShashChess GZ EXT-S.txt (ZIP)
1-2) Leptir Analyzer, Result: 103 out of 110 = 93.6%. Leptir Analyzer.txt (ZIP)
3-5) ShashChess GZ EXT, Result: 101 out of 110 = 91.8%. ShashChess GZ EXT.txt (ZIP)
3-5) Corchess 4 050523, Result: 101 out of 110 = 91.8%. Corchess 4 050523.txt (ZIP)
3-5) Little Beast sl, Result: 101 out of 110 = 91.8%. Little Beast sl.txt (ZIP)
6-7) ShashChess GZ, Result: 100 out of 110 = 90.9%. ShashChess GZ.txt (ZIP)
6-7) Crystal 5 KWK, Result: 100 out of 110 = 90.9%. Crystal 5 KWK.txt (ZIP)
8) SugaR AI Iccf SE, Result: 99 out of 110 = 90.0%. SugaR AI Iccf SE.txt (ZIP)
9) SugaR AI SE, Result: 97 out of 110 = 88.1%. SugaR AI SE.txt (ZIP)
10) Eman 8.91, Result: 96 out of 110 = 87.2%. Eman 8.91.txt (ZIP)
11-12) Stockfish 050523, Result: 94 out of 110 = 85.4%. Stockfish 050523.txt (ZIP
11-12) Blue Marlin 15.7, Result: 94 out of 110 = 85.4%. Blue Marlin 15.7.txt (ZIP)
13) Dark SisTer 5.0, Result: 93 out of 110 = 84.5%. Dark SisTer 5.0.txt (ZIP)
14) Lc0 v0.30Beta BT2, RTX 3080+3080ti, 86 out of 110. Lc0 v0.30 BT2, 3080+3080ti.txt (ZIP)
15-16) CatroPOLY v1.8 060523, Result: 85 out of 110 = 77.2%. CatroPOLY v1.8.txt (ZIP)
15-16) Lc0 v0.30.0-rc1 BT2, RTX 4070ti, 85 out of 110 = 77.2%. Lc0 v0.30.0-rc1.txt (ZIP)
17) Lc0 v0.31.0 dev T1 RTX 3060m (CCC parameters), 80 out of 110 = 72.7%. Lc0 0.31.0 T1.txt (ZIP)
18) Lc0 v0.30.0-rc1 BT2, RTX 3060m, cache-opt=true, 78 out of 110. Download.txt (ZIP)
19-20) Lc0 v0.30Beta BT2, RTX 3080ti, 75 out of 110 (68%). Lc0 v0.30.0-BT2 RTX 3080ti.txt (ZIP)
19-20) Lc0 v0.30.0-rc1 BT2, RTX 3060m, 75 out of 110 (66.3%). Lc0 v0.30.0-rc1.txt (ZIP)
21) Rebel-16.2, Result: 50 out of 110 = 45.4%. Rebel-16.2.txt (ZIP)
22) Powerfritz 18, Result: 45 out of 110 = 40.9%. Powerfritz 18.txt (ZIP)

[Eduard]

GUI Powerfritz 18, Ryzen 3900X, 20 Threads, Hash 4 GB, all 3456men Syzygy. Time 60s for move.

Updated May 12, 2023:
SugaR AI SE was removed from my ENET-2023 list. What is the reason? I heard that the search code of SugaR AI SE is 1:1 identical to Stockfish dev, which was released at the same time. I compared the code myself and got the same result. I don't want to have a duplicate Stockfish dev in the list. I am therefore now also surprised that the author of SugaR AI SE only mentions himself as the author. With a 100% Stockfish dev search code, the other SF developers should also be mentioned.

1-2) ShashChess GZ EXT-S, Result: 103 out of 110 = 93.6%. ShashChess GZ EXT-S.txt (ZIP)
1-2) Leptir Analyzer, Result: 103 out of 110 = 93.6%. Leptir Analyzer.txt (ZIP)
3-4) Corchess 4 050523, Result: 101 out of 110 = 91.8%. Corchess 4 050523.txt (ZIP)
3-4) Little Beast sl, Result: 101 out of 110 = 91.8%. Little Beast sl.txt (ZIP)
5-6) ShashChess GZ, Result: 100 out of 110 = 90.9%. ShashChess GZ.txt (ZIP)
5-6) Crystal 5 KWK, Result: 100 out of 110 = 90.9%. Crystal 5 KWK.txt (ZIP)
7) SugaR AI Iccf SE, Result: 99 out of 110 = 90.0%. SugaR AI Iccf SE.txt (ZIP)
8) Eman 8.91, Result: 96 out of 110 = 87.2%. Eman 8.91.txt (ZIP)
9-10) Stockfish 050523, Result: 94 out of 110 = 85.4%. Stockfish 050523.txt (ZIP
9-10) Blue Marlin 15.7, Result: 94 out of 110 = 85.4%. Blue Marlin 15.7.txt (ZIP)
11) Dark SisTer 5.0, Result: 93 out of 110 = 84.5%. Dark SisTer 5.0.txt (ZIP)
12) Lc0 v0.30Beta BT2, RTX 3080+3080ti, 86 out of 110. Lc0 v0.30 BT2, 3080+3080ti.txt (ZIP)
13-14) CatroPOLY v1.8 060523, Result: 85 out of 110 = 77.2%. CatroPOLY v1.8.txt (ZIP)
13-14) Lc0 v0.30.0-rc1 BT2, RTX 4070ti, 85 out of 110 = 77.2%. Lc0 v0.30.0-rc1.txt (ZIP)
15) Lc0 v0.31.0 dev T1 RTX 3060m (CCC parameters), 80 out of 110 = 72.7%. Lc0 0.31.0 T1.txt (ZIP)
16) Lc0 v0.30.0-rc1 BT2, RTX 3060m, cache-opt=true, 78 out of 110. Download.txt (ZIP)
17-18) Lc0 v0.30Beta BT2, RTX 3080ti, 75 out of 110 (68%). Lc0 v0.30.0-BT2 RTX 3080ti.txt (ZIP)
17-18) Lc0 v0.30.0-rc1 BT2, RTX 3060m, 75 out of 110 (66.3%). Lc0 v0.30.0-rc1.txt (ZIP)
19) Rebel-16.2, Result: 50 out of 110 = 45.4%. Rebel-16.2.txt (ZIP)
20) Powerfritz 18, Result: 45 out of 110 = 40.9%. Powerfritz 18.txt (ZIP)

[Zerbinati]

Dear Edward,
i simply forgot to update the authors, as can be seen even in new versions only the Iccf version reports the authors