Mephisto Chess Genius

[Engin]

I do not think shredder is continued. There is no new shredder version in the last years.
In opposite to new colossus versions.

Richard lang , like Ed Schroeder, „retired“ from commercial computer chess .
His motorola 680x0 versions were assembler. Later engines were imo not assembler but C.
The motorola versions were the foundation of his success with Hegener and Glaser and Ossi Weiner.

Although Richard Lang did work before HG for David Levy.
His 8bit engine was sold as Cyrus and Cyrus II on many machines. Then dedicated chess computers for hanimex and cxg and other companies. After 1984 came the Hegener and Glaser age.
With many championship titles such as in amsterdam, dallas, rome, almeria, portorose, vancouver…

Richard was in Santiago de Compostela.

Almost any participant there made selfies with „King Richard“.

yes, me too

Richard Lang was in Santiago too, i ask him why his engine not work on windows 64 bit and he told me that is a lot of work to rewrite it for 64 bit.

[Ras]

why it is working on linux but not on windows 64 bit ?

The underlying core problem is the x86 CPU itself. If you are in 64 bit mode, you can only run 64 bit and 32 bit programs, not 16 bit code. If you are in 32 bit mode, you can run 32 bit and 16 bit code. What's worse, changing between the modes requires a hard reset. By the time 64 bit Windows became common, there was so little need for old 16 bit programs that Microsoft didn't bother with another solution, especially because one of the main needs is old DOS games - and that already works via DOSbox anyway.

Linux, on the other hand, has Wine, and that provides a complete CPU emulation for 16 bit code.

if he has ported to C then it should more easier to compile it for 64 bit i guess or ?

Yes, barring some bugs, like implicitely assuming that the size of an integer is the same as of a pointer. That used to be common back when 64 bit CPUs were new. However, the C version is probably not identical to Genuis 7. Means, it's a Lang engine, but not quite the same.

Also, given that Lang's engine is still in active commercial use, namely with the Millennium Chess dedicated units, we won't see that as open source anytime soon, if ever at all.

[Damir]

Can anyone ask Mr Lang if he can compile desktop version of his engine, Chess Genius 7.2 to 64 bits?

The engine is not working on my comp, as it doesn't support the compatibility of the engine.

If it is too much for him to rewrite his engine to 64 bits, can he at least release the source code of his engine to a trustworthy person with programming knowledge, who will be able to do it instead?

I have bought both mobile and desktop version of his program.

I have tried and write to him regarding the desktop version of his program, but have never received a reply from him.

[Ras]

Can anyone ask Mr Lang if he can compile desktop version of his engine, Chess Genius 7.2 to 64 bits?

Already answered: viewtopic.php?p=975290#p975290

[Werewolf]

I do not think shredder is continued. There is no new shredder version in the last years.
In opposite to new colossus versions.

I'll bet you're wrong on this one

[mclane]

Last shredder 13 version is from November 2016!!

So far no version. Looks like Stefan is doing other stuff now.

[Tibono]

Are you ruling out Shredder 13.5 NNUE, included in the Mephisto Phoenix (2023)?
Not available as a standalone software, I have to acknowledge. A pity, I would happily buy it!

[mclane]

True. It is a new product for a dedicated chess computer. But it is still shredder13, evaluation replaced with nnue.

We have to face the truth that chess programmers do not continue programming chess forever.
Most of them begin a family life and do other stuff e.g. when they retire.
There are a few exceptions. Martin Bryant, Ed Schröder and C.W. are stll doing computerchess.
We can be very happy that these people are still healthy and have fun about computerchess or that , like Richard Lang they visit computerchess events like Santiago de Compostela.

[germangonzo]

Hi everybody,
did anybody get https://github.com/otya128/winevdm running?
Seems to be a solution.
BR
Frank

[Damir]

Hi Frank

If possible can you compile 16 bits Windows from its source, with its installation file, so I can install it?