Most aggressive Whittington / Schroeder

[pohl4711]

No, but perhaps Pedone 3 is an alternative?

Go on my EAS-ratinglist site:
https://www.sp-cc.de/eas-ratinglist.htm
(The world's first engine-ratinglist not measuring strength of engines, but engines's style of play)

Scroll all the way down, you see the All-time Top10 EAS-Ratinglist, where Pedone 3 is on rank 2. And below you find the download-link
Pedone 3 is not only a very aggressive playing engine, but also perfect for playing as a human against it: There is an android-version (runs fine in Droidfish on my Xiaomi Note 8 Pro Smartphone), and the playing strength can be adjusted in percent. With 92/93 percent it is a good opponent for my TheKing-Element Chesscomputer, so 92% should be somewhere around 2400 Elo. You can try any lower percent for playing. But mention: If you change the percent-value, you have to close Droidfish and restart it. Because Pedone writes this value in an .ini-File and does read this file, only, if restarted...Strange.

Great Engine, free, aggressive and adjustable in strength. And runs in Android. And Linux. So, should be great (and work fine) for electronic chessboards, too.

[pohl4711]

No, but perhaps Pedone 3 is an alternative?

Go on my EAS-ratinglist site:
https://www.sp-cc.de/eas-ratinglist.htm
(The world's first engine-ratinglist not measuring strength of engines, but engines's style of play)

Scroll all the way down, you see the All-time Top10 EAS-Ratinglist, where Pedone 3 is on rank 2. And below you find the download-link
Pedone 3 is not only a very aggressive playing engine, but also perfect for playing as a human against it: There is an android-version (runs fine in Droidfish on my Xiaomi Note 8 Pro Smartphone), and the playing strength can be adjusted in percent. With 92/93 percent it is a good opponent for my TheKing-Element Chesscomputer, so 92% should be somewhere around 2400 Elo. You can try any lower percent for playing. But mention: If you change the percent-value, you have to close Droidfish and restart it. Because Pedone writes this value in an .ini-File and does read this file, only, if restarted...Strange.

Great Engine, free, aggressive and adjustable in strength. And runs in Android. And Linux. So, should be great (and work fine) for electronic chessboards, too.

I am doing an experimental testrun of Pedone 3.0 with Strength-setting from 80 up to 100: Find out, how strong Pedone 3.0 plays with these different strength-settings. Because Pedone 3.0 is one of the most aggressive playing engines, it is free, it runs on Android-Smartphones and offers a strength-adjustment parameter. So, Pedone 3.0 is a real good opponent for playing as a human (on a electronic chessboard?) against it. Or testing Chesscomputers vs. Pedone 3.0 (NOT Pedone 3.1, which plays not so aggressive!!!). The test-torunament will take 3-4 days...

[mclane]

I was unsuccessful installing v8arm on my mobile phone. Even when renaming it *.APK it was not working

[Eelco de Groot]

Where to get the engine and for which hardware ?

http://www.pkoziol.cal24.pl/rodent/rodent.htm

Opental is a derivative of Rodent. And Opental is the most aggressive engine on the planet. But only around 2300 Elo.
Latest version on my Google Drive as I posted here before:

By the way: Using the polyglot-adapter, I made a version of OpenTal 1.2, which runs in FritzGUI (normal version does not!):

(You must change number of Threads (I set it to 8 (8 is the highest possible!)) and Hash in the polyglot.ini-file (both parameters are at the end of the ini-file)). The polyglot-adapter was renamed to OpenTal_1.2_x64.exe (use this file for Create UCI engine in Fritz GUI, not "enginebinary.exe" (!!!))

I other GUIs, you can use Opental without adapter. Just rename enginebinary.exe to Opental1.2 or so. And use this file in the GUI.

For anyone interested in Rodent, I am not familiar with it myself, but a few months ago Ed developed a NNUE, for the standard Rodent I believe.

https://prodeo.actieforum.com/t728-rode ... ght=Rodent

But it was to my knowledge never implemented by Pawel because we, well Ed and Chris, sort of lost contact with Pawel I think. I don't know anymore about it but know Pawel is still active. Maybe if anyone writes him an email, he may not know about the NNUE from Ed at all..

[pohl4711]

I was unsuccessful installing v8arm on my mobile phone. Even when renaming it *.APK it was not working

All, I did, was to download the file and then move the file into the uci-folder of Droidfish...with a file explorer. Droidfish recognizes all engines in its uci-folder automatically.
No installing, no renaming

[mclane]

Indeed. It works only by moving and selecting it in droidfish.

[Rowen]

Where to get the engine and for which hardware ?

http://www.pkoziol.cal24.pl/rodent/rodent.htm

Opental is a derivative of Rodent. And Opental is the most aggressive engine on the planet. But only around 2300 Elo.
Latest version on my Google Drive as I posted here before:

By the way: Using the polyglot-adapter, I made a version of OpenTal 1.2, which runs in FritzGUI (normal version does not!):

(You must change number of Threads (I set it to 8 (8 is the highest possible!)) and Hash in the polyglot.ini-file (both parameters are at the end of the ini-file)). The polyglot-adapter was renamed to OpenTal_1.2_x64.exe (use this file for Create UCI engine in Fritz GUI, not "enginebinary.exe" (!!!))

I other GUIs, you can use Opental without adapter. Just rename enginebinary.exe to Opental1.2 or so. And use this file in the GUI.

Hi
Is this Opental 1.2 a version of Opental 1.0 or 1.1?

[pohl4711]

Where to get the engine and for which hardware ?

http://www.pkoziol.cal24.pl/rodent/rodent.htm

Opental is a derivative of Rodent. And Opental is the most aggressive engine on the planet. But only around 2300 Elo.
Latest version on my Google Drive as I posted here before:

By the way: Using the polyglot-adapter, I made a version of OpenTal 1.2, which runs in FritzGUI (normal version does not!):

(You must change number of Threads (I set it to 8 (8 is the highest possible!)) and Hash in the polyglot.ini-file (both parameters are at the end of the ini-file)). The polyglot-adapter was renamed to OpenTal_1.2_x64.exe (use this file for Create UCI engine in Fritz GUI, not "enginebinary.exe" (!!!))

I other GUIs, you can use Opental without adapter. Just rename enginebinary.exe to Opental1.2 or so. And use this file in the GUI.

Hi
Is this Opental 1.2 a version of Opental 1.0 or 1.1?

It is OpenTal 1.2, the latest and final version. I dont understand that question. If I type "uci" in console-mode (of the enginebinary.exe, which is the renamed Opental-Engine) it says:
"id OpenTal 1.2 64-bit Pure-Tal"

[Rowen]

Where to get the engine and for which hardware ?

http://www.pkoziol.cal24.pl/rodent/rodent.htm

Opental is a derivative of Rodent. And Opental is the most aggressive engine on the planet. But only around 2300 Elo.
Latest version on my Google Drive as I posted here before:

By the way: Using the polyglot-adapter, I made a version of OpenTal 1.2, which runs in FritzGUI (normal version does not!):

(You must change number of Threads (I set it to 8 (8 is the highest possible!)) and Hash in the polyglot.ini-file (both parameters are at the end of the ini-file)). The polyglot-adapter was renamed to OpenTal_1.2_x64.exe (use this file for Create UCI engine in Fritz GUI, not "enginebinary.exe" (!!!))

I other GUIs, you can use Opental without adapter. Just rename enginebinary.exe to Opental1.2 or so. And use this file in the GUI.

Hi
Is this Opental 1.2 a version of Opental 1.0 or 1.1?

It is OpenTal 1.2, the latest and final version. I dont understand that question. If I type "uci" in console-mode (of the enginebinary.exe, which is the renamed Opental-Engine) it says:
"id OpenTal 1.2 64-bit Pure-Tal"

Pawel Koziol released 2 versions of Opental which were 1.0 and later 1.1. I don't believe there was a '1.2' so I simply wondered whether 1.2 was based on 1.1 or 1.0, but it doesnt matter,

[adnoh]

It would be interesting to test against the couple of
standard chess engines that's representative of elo 1800, 1900,2000,2100,2200,2300 and so on.

Such as popular open source engines
TSCP
Gerbil
Micromax
Chesley
Scidlet
Typhoon

And try and find the engines that's statistically fastest to checkmate them

I just finished testing CDrill 1800 Build 4 and this may be the most aggressive 1800 elo engine, certainly without tweaking. True to its name, it tested out as 1824 (2300 games) and its EAS score is second only to OpenTal 1.0. In fact, it had an even lower Bad draws score.

Code: Select all

***************************************************************************** 
*** Engine Aggressiveness Tool V4.1 Score points Ratinglist 
***************************************************************************** 
Score is: (percent*100) of the percent-values of the sacs (1-5+ pawnunits) 
calculated out of the won games by the engine, only. 
So, a weak engine (with a small number of won games) can get 
a high EAS-scoring, too, when the percent of sac-games in the won games 
is high (and the number of short wins). Higher pawnunits-sacs give bonus-points: 
1 pawnsac = 2x points  *** 2 pawnsac  = 10x points *** 3 pawnsac = 20x points 
4 pawnsac = 40x points *** 5+ pawnsac = 80x points *** 5+ Queensac = 150x points 
Additionally, very short won games (percent*100) give bonus-points. If the short 
games ended before endgame (a check for low material is done), then these points 
are quadrupled (4x): 
60 moves= 1x points *** 55 moves= 2x points *** 50 moves= 5x points
45 moves= 10x points *** 40 moves= 30x points.  
Since V4.1, the tool also searches for "bad draws" and adds points for the good 
draws ((percent of good draws (out of all draws)) exp3 /15) 
Bad draws are games, which were drawn before endgame was reached (except the 
games, were the engine had a material disadvantage) and draws 
after the engine had a material advantage of at least 1 pawn in the game. 
***************************************************************************** 
*** Evaluated file: a.pgn *** 
***************************************************************************** 
                                 bad 
Rank  EAS-Score  sacs   shorts  draws    Engine/player 
------------------------------------------------------------- 
   1    710301  60.74%  91.06%  10.56%  "OpenTal 1.0" 
   2    481846  36.79%  84.38%  09.30%  "CDrill 1800 B4" 
   3    389453  33.84%  77.98%  16.51%  "Stockfish 5 Fury" 
   4    371684  30.91%  80.91%  16.08%  "Velvet 4.0.0" 
   5    320254  25.03%  74.97%  15.99%  "DanaSah 9.0" 
   6    315715  30.45%  77.55%  14.87%  "Velvet 4.1.0" 
   7    314602  15.94%  72.71%  18.75%  "Maverick 1.5" 
   8    301954  12.22%  78.36%  25.65%  "Leorik 1.0" 
   9    300465  08.53%  81.12%  16.97%  "MadChess 1.1" 
  10    297571  23.74%  71.40%  21.53%  "Stockfish 5" 
  11    296326  21.74%  76.03%  18.79%  "Protej 0.6.3" 
  12    296229  25.28%  73.58%  14.51%  "CSTal (10m) R14.1.02" 
  13    292332  16.60%  77.33%  13.71%  "Bit-Genie 1.1" 
  14    290612  07.64%  80.52%  20.29%  "MadChess 1.2" 
  15    287432  16.70%  75.52%  16.34%  "SOS 5" 
  16    283290  11.71%  75.96%  22.81%  "MadChess 1.3" 
  17    281955  17.06%  76.95%  12.81%  "Bit-Genie 2" 
  18    281515  19.57%  75.49%  22.15%  "Pedone 3.0" 
  19    281020  15.70%  73.83%  25.96%  "Walleye 1.6.0" 
  20    280135  15.98%  81.05%  23.43%  "Giraffe 2016-10-23" 
***************************************************************************** 
***************************************************************************** 
***************************************************************************** 
*** 2nd Ratinglist with all stats in percent-values ************************* 
***************************************************************************** 
                                                                                                                                                    bad   
Rank  EAS-Score   wins    all sacs  sacsQ    sacs5+   sacs4    sacs3    sacs2    sacs1    all shorts short40  short45  short50  short55  short60   draws    Engine/player
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
   1    710301      940    60.74% =[00.11% + 07.45% + 08.72% + 15.85% + 14.36% + 14.26%]    91.06% = [60.43% + 10.64% + 09.15% + 07.55% + 03.30%]  10.56%  "OpenTal 1.0" 
   2    481846      954    36.79% =[00.00% + 01.36% + 02.73% + 08.18% + 11.53% + 13.00%]    84.38% = [44.03% + 14.68% + 09.64% + 08.81% + 07.23%]  09.30%  "CDrill 1800 B4" 
   3    389453      981    33.84% =[00.00% + 01.12% + 01.02% + 04.89% + 10.19% + 16.62%]    77.98% = [32.21% + 13.97% + 11.82% + 10.81% + 09.17%]  16.51%  "Stockfish 5 Fury" 
   4    371684      922    30.91% =[00.11% + 01.84% + 02.17% + 04.34% + 08.57% + 13.88%]    80.91% = [32.75% + 11.82% + 15.62% + 11.61% + 09.11%]  16.08%  "Velvet 4.0.0" 
   5    320254      887    25.03% =[00.00% + 00.68% + 01.80% + 04.06% + 06.76% + 11.72%]    74.97% = [27.06% + 12.74% + 13.19% + 12.06% + 09.92%]  15.99%  "DanaSah 9.0" 
   6    315715      913    30.45% =[00.11% + 01.86% + 01.86% + 04.05% + 07.89% + 14.68%]    77.55% = [27.05% + 12.16% + 14.35% + 12.60% + 11.39%]  14.87%  "Velvet 4.1.0" 
   7    314602      960    15.94% =[00.00% + 00.10% + 00.10% + 00.73% + 02.50% + 12.50%]    72.71% = [30.42% + 12.19% + 09.69% + 10.42% + 10.00%]  18.75%  "Maverick 1.5" 
   8    301954      499    12.22% =[00.00% + 00.00% + 00.40% + 00.40% + 02.61% + 08.82%]    78.36% = [32.46% + 13.03% + 11.62% + 10.22% + 11.02%]  25.65%  "Leorik 1.0" 
   9    300465      996    08.53% =[00.00% + 00.20% + 00.20% + 00.80% + 02.21% + 05.12%]    81.12% = [34.74% + 11.45% + 14.16% + 11.04% + 09.74%]  16.97%  "MadChess 1.1" 
  10    297571     1811    23.74% =[00.00% + 00.72% + 00.66% + 02.87% + 06.52% + 12.98%]    71.40% = [25.18% + 10.99% + 12.37% + 12.42% + 10.44%]  21.53%  "Stockfish 5" 
  11    296326      897    21.74% =[00.00% + 00.33% + 00.89% + 02.79% + 07.13% + 10.59%]    76.03% = [27.42% + 13.38% + 13.27% + 11.48% + 10.48%]  18.79%  "Protej 0.6.3" 
  12    296229      882    25.28% =[00.00% + 00.45% + 00.79% + 02.49% + 06.92% + 14.63%]    73.58% = [24.72% + 12.70% + 13.15% + 11.45% + 11.56%]  14.51%  "CSTal (10m) R14.1.02" 
  13    292332      494    16.60% =[00.00% + 00.20% + 00.20% + 01.42% + 07.09% + 07.69%]    77.33% = [31.98% + 11.74% + 13.77% + 10.12% + 09.72%]  13.71%  "Bit-Genie 1.1" 
  14    290612      811    07.64% =[00.00% + 00.00% + 00.12% + 00.25% + 02.10% + 05.18%]    80.52% = [32.31% + 12.82% + 13.69% + 12.45% + 09.25%]  20.29%  "MadChess 1.2" 
  15    287432      527    16.70% =[00.00% + 00.00% + 00.38% + 01.90% + 04.93% + 09.49%]    75.52% = [28.46% + 13.09% + 13.09% + 11.95% + 08.92%]  16.34%  "SOS 5" 
  16    283290      811    11.71% =[00.00% + 00.12% + 00.37% + 01.11% + 02.96% + 07.15%]    75.96% = [31.81% + 11.10% + 13.07% + 11.10% + 08.88%]  22.81%  "MadChess 1.3" 
  17    281955      768    17.06% =[00.00% + 00.39% + 00.26% + 01.95% + 03.52% + 10.94%]    76.95% = [26.56% + 11.85% + 15.49% + 12.76% + 10.29%]  12.81%  "Bit-Genie 2" 
  18    281515      971    19.57% =[00.10% + 01.54% + 01.44% + 02.88% + 03.71% + 09.89%]    75.49% = [23.48% + 12.36% + 12.77% + 14.32% + 12.56%]  22.15%  "Pedone 3.0" 
  19    281020      554    15.70% =[00.00% + 00.00% + 00.36% + 01.44% + 03.61% + 10.29%]    73.83% = [28.52% + 13.90% + 12.09% + 10.29% + 09.03%]  25.96%  "Walleye 1.6.0" 
  20    280135      707    15.98% =[00.00% + 00.14% + 00.85% + 01.56% + 03.82% + 09.62%]    81.05% = [31.68% + 14.99% + 13.72% + 11.17% + 09.48%]  23.43%  "Giraffe 2016-10-23" 
***************************************************************************** 
**************************************************** 
*** EAS-tool (C) 2022 Stefan Pohl (www.sp-cc.de) *** 
****************************************************