Chess System Tal 2.1 EAS

[chrisw]

Hello!

Is this system windows-only?

greetings

It works with all normal production PCs as far as I know. It’s also free. If you’d like me to research the cost of getting it to run with obscure systems, the initial research fee to establish this charge would be 5000 euros plus another 5000 euros to invest in a suitably obscure PC.

[chrisw]

Hello!

Is this system windows-only?

greetings

I think so yes, all CS Tals and Rebels were built with MSVC in the past as that is Chris' compiler of choice and other compilers had trouble with the very large networks used at least that's what I remember. The .exe is uncompressed 139 Mb and Google could not viruscheck something that large :0 (so you have to give Google permission to download anyway). Malwarebytes scanned it okay and runs okay in Shredder GUI here:

Code: Select all

Chess System Tal 2.1 EAS
Release version
(C) Chris Whittington 2003-2025
NNUE development Ed Schroder 2025
==================================
GenuineIntel
Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz
3DNOW not supported
3DNOWEXT not supported
ABM not supported
ADX not supported
AES supported
AVX supported
AVX2 supported
AVX512CD not supported
AVX512ER not supported
AVX512F not supported
AVX512PF not supported
BMI1 supported
BMI2 supported
CMPXCHG16B supported
CX8 supported
ERMS supported
F16C supported
FMA supported
FSGSBASE supported
FXSR supported
HLE not supported
INVPCID supported
LAHF supported
LZCNT supported
MMX supported
MMXEXT not supported
MONITOR supported
MOVBE supported
MSR supported
OSXSAVE supported
PCLMULQDQ supported
POPCNT supported
PREFETCHWT1 not supported
RDRAND supported
RDSEED not supported
RDTSCP supported
RTM not supported
SEP supported
SHA not supported
SSE supported
SSE2 supported
SSE3 supported
SSE4.1 supported
SSE4.2 supported
SSE4a not supported
SSSE3 supported
SYSCALL supported
TBM not supported
XOP not supported
XSAVE supported
Processor supports AVX2
Hash=128 Mb
Globals=199 Kb
Threads=1
Cores=2
Hamming=14
Hamming=15
Thread=74 Mb
Tree=7 Mb
Magics=862720 bytes
set Hash to 1024MB
Hash table set to 1024 MB
set Ponder to value true
Engine: Chess System Tal 2.1 EAS (1024 MB)
gemaakt door Chris Whittington (C) 2003-2025

All compilers have problems. Best is to choose one that is well supported and produces code that runs on all but obscurely modified PCs.
My old company was chosen by Microsoft way back pre-1995 to beta test and use what is now known as MSVC. I’ve been using it and upgrades of it ever since. Very reliable, internally checked and robust system that generates robust code designed to not crash user systems and to recover in the case of problems.

[Ras]

It works with all normal production PCs as far as I know. It’s also free. If you’d like me to research the cost of getting it to run with obscure systems, the initial research fee to establish this charge would be 5000 euros plus another 5000 euros to invest in a suitably obscure PC.

I think the question is rather whether other OS such as Linux or macOS could potentially be supported. That's easy enough to answer - if it's standard compliant C++, then there would be such potential in theory, though probably not the authors' interest in practice.

[cpeters]

Yes, thanks. Other operating systems (OS). Whitespread (like in your and any other phone/tablet/computer). Not obscure.

Why did I even ask this question? Should've known better. Disappointing like the Rebel based on Toga*, or the Rodent* thingy. All taken and verwursted to windows-only.

*which compiled fine on unix-like operating systems

If you’d like me to research the cost of getting it to run with obscure systems, the initial research fee to establish this charge would be 5000 euros plus another 5000 euros to invest in a suitably obscure PC.

obscure PC

?? Is this a joke? Lame.

[pohl4711]

Chris asked me to announce the new Chess System Tal 2.1 EAS

The new EAS version of Chess System Tal has greatly improved when it is about playing style playing unbelievable sharp games with lots of material sacrifices, Paul Morphy would have blushed. Stefan Pohl kindly tested Chess System Tal 2.1 EAS already, here are the results.

Code: Select all

EAS (Top10 of my full EAS-Ratinglist):
                                 bad  avg.win 
Rank  EAS-Score  sacs   shorts  draws  moves  Engine/player 
-------------------------------------------------------------------
   1    429481  51.61%  38.03%  05.49%   66   Patricia 3.1 avx2  
   2    376711  50.62%  36.92%  07.20%   68   Chess System Tal 2.1 EAS  
   3    337432  46.96%  29.39%  03.46%   70   Patricia 4.0 avx2  
   4    312346  43.56%  27.63%  04.21%   68   Cerberus 21124081r81  
   5    250682  37.88%  23.88%  08.79%   75   Rebel Extreme avx2  
   6    218083  32.46%  23.04%  09.25%   71   Velvet 8.1.0 risky  
   7    201351  34.75%  22.22%  10.27%   73   Velvet 8.0.0 risky  
   8    197919  31.18%  29.46%  17.09%   71   Revenge 1.0 avx2  
   9    193748  21.29%  26.40%  09.17%   70   Stockfish 16 230630  
  10    190732  22.08%  24.73%  08.71%   70   Stockfish 16.1 240224

Link

CSTal 2.1 EAS is now included in my full ratinglist (and full EAS-ratinglist):
https://www.sp-cc.de/files/uho_full_list.txt

[Rebel]

Cool...

[jefk]

obscure PC

?? Is this a joke

what do you think ?
(he's British, you know)


PS tried to find a download link for this 2.1 version, but on github last version is from 2023
as for Rebel extreme (dev 45? ) i first found this:
https://www.sportpoeders.nl/nl/webshop/ ... l-extreme/[/b]
and then this :
https://rebel7775.wixsite.com/rebel/kop ... el-eas-2-0
which after download gives a version from 2024. i'll try some games
later with my gambit book (instead of Pat4, for a change).

[chrisw]

Yes, thanks. Other operating systems (OS). Whitespread (like in your and any other phone/tablet/computer). Not obscure.

Why did I even ask this question? Should've known better. Disappointing like the Rebel based on Toga*, or the Rodent* thingy. All taken and verwursted to windows-only.

*which compiled fine on unix-like operating systems

If you’d like me to research the cost of getting it to run with obscure systems, the initial research fee to establish this charge would be 5000 euros plus another 5000 euros to invest in a suitably obscure PC.

obscure PC

?? Is this a joke? Lame.

One thing always amazed me about computer chess. You release a program, free or not, and some end users think they own you, make demands, get insulting if you don’t comply. Well do sorry to have disappointed you kid. Anything else I can do?
Tell you what, cpeters, you are specifically denied a licence to download or use any engine of mine. Erase what you have from your equipment. Have a nice day.

[chrisw]

Chris asked me to announce the new Chess System Tal 2.1 EAS

The new EAS version of Chess System Tal has greatly improved when it is about playing style playing unbelievable sharp games with lots of material sacrifices, Paul Morphy would have blushed. Stefan Pohl kindly tested Chess System Tal 2.1 EAS already, here are the results.

Code: Select all

EAS (Top10 of my full EAS-Ratinglist):
                                 bad  avg.win 
Rank  EAS-Score  sacs   shorts  draws  moves  Engine/player 
-------------------------------------------------------------------
   1    429481  51.61%  38.03%  05.49%   66   Patricia 3.1 avx2  
   2    376711  50.62%  36.92%  07.20%   68   Chess System Tal 2.1 EAS  
   3    337432  46.96%  29.39%  03.46%   70   Patricia 4.0 avx2  
   4    312346  43.56%  27.63%  04.21%   68   Cerberus 21124081r81  
   5    250682  37.88%  23.88%  08.79%   75   Rebel Extreme avx2  
   6    218083  32.46%  23.04%  09.25%   71   Velvet 8.1.0 risky  
   7    201351  34.75%  22.22%  10.27%   73   Velvet 8.0.0 risky  
   8    197919  31.18%  29.46%  17.09%   71   Revenge 1.0 avx2  
   9    193748  21.29%  26.40%  09.17%   70   Stockfish 16 230630  
  10    190732  22.08%  24.73%  08.71%   70   Stockfish 16.1 240224

Link

CSTal 2.1 EAS is now included in my full ratinglist (and full EAS-ratinglist):
https://www.sp-cc.de/files/uho_full_list.txt

Thanks

[Modern Times]

One thing always amazed me about computer chess. You release a program, free or not, and some end users think they own you, make demands, get insulting if you don’t comply.

Yes that does happen, but some people simply make polite enquiries which is of course different.

You're right, for example if you only support and supply Windows exes that is entirely up to you. If you choose only to supply exes for modern hardware say, that is also entirely up to you. If you choose not to support tablebases say, then that is also entirely up to you. If you set certain hash size requirements say, up to you again. It is your program and your decisions to make.