Questions to Ed Schroeder:

1.Ed you began to work for HG earlier then the Mephisto Rebel that came out after cologne championship 1986 where you participated with with an apple accelerator card from joerg mitsdoerfer with 10 or 12 mhz and the famous hair-dryer to cool the machine down.
In 1985 (Amsterdam) championship e.g. you participated with an amateur version of your engine running on a MMII HG hardware with 32 ROM and only 4 KB ram wirh 3.7 mhz, the normal hardware HG was selling at the time as MMII and Rathsmann program.
You changed the eprom and tried to put rebel into this module.

But it was not such a big success.
I guess the 4 KB ram was not enough for you.

2. After the championship in cologne you and HG came out with Rebel.
This module had 5 mhz and 8 KB ram.
In cologne Rathsmann had similar amount of points like you had, and i think HG still planned to bring out a successor of the very successful MMII called MMIII.
Therefore your engine did not come out as MMIII but as Rebel.
And with the next engine it was MMIV and then MMV.

So HG still expected Rathsmann to deliver and finalise his new brute force engine for HG boards.

Strangely there never was a MMIII.
It never came out.

Do you have an idea what happened?!

3. MM4 is IMO much stronger then Rebel, although they use similar hardware specs.
Both use 5 mhz 32/8 KB ROM/RAM.

But why is MM4 so much better then rebel5.0 was ??
Can you explain what the trick was ?

4. I know there was another machine in planning for the academy housing.
I guess it must have had the name with TT or something alike.

I don't know for sure why the MM3 from Rathsmann was never released, I can only guess. I think his fate was decided because of Rebel's performance in Cologne plus the influence of Jan Louwman had on Manfred Hegener. Manfred wanted to expand his business and he wanted 3 programmers for his business model en Jan Louwman delivered.

The MM4 was a good improvement over the Cologne version, eval changes mostly.

So the dutch computerchess pope made sure dutch programmers make the business ;-)

Mclane wrote:

So the dutch computerchess pope made sure dutch programmers make the business ;-)

The pope himself too

A win win situation.
Not for Ulf Rathsmann of course.
He then planned to sell his engine to saitek after the deal with Hegener failed to realize. The name there was „brute force modul“. Everything was prepared. Saitek had Maestro/Analyst modules on the base of 6502 CPU in usage, only Kaplans engine was to selective and positional playing. Even the boxes with rathsmann printed as programmer were ready.

But then… due to a mighty power force from NL, suddenly Frans Morsch was hired and the 6502 Rathsmann engine was exchanged with Frans H8 selective engine with preprocessing and nullmove.
This means different Hardware because the H8 is something completely different then 6502 hardware that was used.
The Rathsmann name on the boxes was replaced with frans Morsch. And the press had to explain why a „brute force module“ contains a selective null nove pruner.

So Rathsmann was kicked out at HG and kicked out at Saitek.

That must have been a shock for him.
Jan was very good in contracts and deals as it looks.

Ed Schroeder in dutch championships 1982:

https://www.csvnsupplementsite.nl/CSVNPAGINA1.html

Mclane wrote:

Ed Schroeder in dutch championships 1982:

https://www.csvnsupplementsite.nl/CSVNPAGINA1.html

Excellent!

Also good fun to read Jaap van den Herik's section in that article on AI. My answer to his first question: AI is programmatically taking some data and making one (or more) guesses about it, and maybe making a response to it.