Colossus X in D-fend and in PC
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- Fernando
- Admiral of the Fleet
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Colossus X in D-fend and in PC
Probably this info has been published here once and again, but I have not an archiove about this, so let me ask how much strong is Colossus X running in D-fend and a fast PC.
It is a nice program as every one by his programmer.
Fern
It is a nice program as every one by his programmer.
Fern
Festina Lente
because my opinion is based on a small set of games (24).
Since 2 years I stopped using DosBox (D-Fend engine) at full power except for "recent" programs (years 2000+).
I now throttle the emulator according to CPU common expected performance, consistent with the year the chess program went on the market.
Colossus X birth year being 1990, I now play it emulating a 80386@16Mhz.
This way it's "elo" strength drops to circca 1670.
cheers,
Tibono
Since 2 years I stopped using DosBox (D-Fend engine) at full power except for "recent" programs (years 2000+).
I now throttle the emulator according to CPU common expected performance, consistent with the year the chess program went on the market.
Colossus X birth year being 1990, I now play it emulating a 80386@16Mhz.
This way it's "elo" strength drops to circca 1670.
cheers,
Tibono
- spacious_mind
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Good way of doing your tests. That's what I like about DOSBox you can control your speeds to match hardware.Tibono2 wrote:because my opinion is based on a small set of games (24).
Since 2 years I stopped using DosBox (D-Fend engine) at full power except for "recent" programs (years 2000+).
I now throttle the emulator according to CPU common expected performance, consistent with the year the chess program went on the market.
Colossus X birth year being 1990, I now play it emulating a 80386@16Mhz.
This way it's "elo" strength drops to circca 1670.
cheers,
Tibono
I do the same but my tests are more around old ELO lists. I can see the reasons for it because of the amount of testing that would be required but I had always found the old lists unsatisfactory in the way some old programs or program versions were dropped at a specific hardware and not rated with newer hardware.
For example some programs stopped at 486-33, some at 486-66 etc etc.
So it is nice to be able to create your own tests to fill gaps in historical information.
Best regards
Nick
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Hi Fernando,
here is the result of a tournament under real DOS at full speed (two 2.0 GHz notebooks) and 30 sec/move average:
As you can see, Colossus X is not that strong, but surely an unpleasant opponent at that speed.
here is the result of a tournament under real DOS at full speed (two 2.0 GHz notebooks) and 30 sec/move average:
Code: Select all
MC5 Gid CG3 WCh Soc MC1 CST Fr2 Rex Psi Col CPl Tur
1. M-Chess Pro 5.0 * 2.0 2.5 2.5 4.0 3.0 3.0 3.5 2.5 4.0 3.5 3.5 4.0 38.0/48 2530
2. Gideon Pro 1.0 2.0 * 2.0 2.5 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.0 4.0 36.0/48 2490
3. Chess Genius 3.0 1.5 2.0 * 2.0 3.0 3.0 3.0 3.0 4.0 3.0 3.0 4.0 4.0 35.5/48 2480
4. WChess 1.05 1.5 1.5 2.0 * 3.5 2.0 1.5 2.5 3.0 3.0 3.0 4.0 4.0 31.5/48 2410
5. Socrates 3.0 0.0 2.0 1.0 0.5 * 2.5 2.5 3.5 4.0 3.0 3.0 3.5 4.0 29.5/48 2380
6. M-Chess 1.70 1.0 1.5 1.0 2.0 1.5 * 3.0 1.5 2.0 4.0 4.0 3.0 4.0 28.5/48 2370
7. Chess System Tal 1.0 1.5 1.0 2.5 1.5 1.0 * 2.5 2.0 4.0 4.0 3.5 3.5 28.0/48 2360
8. Fritz 2.51 0.5 1.0 1.0 1.5 0.5 2.5 1.5 * 3.0 3.0 3.5 3.5 4.0 25.5/48 2320
9. RexChess 2.30 1.5 0.5 0.0 1.0 0.0 2.0 2.0 1.0 * 4.0 3.0 4.0 3.0 22.0/48 2270
10. Psion 2.13 0.0 0.0 1.0 1.0 1.0 0.0 0.0 1.0 0.0 * 3.0 3.5 4.0 14.5/48 2150
11. Colossus X 0.5 0.0 1.0 1.0 1.0 0.0 0.0 0.5 1.0 1.0 * 2.0 3.5 11.5/48 2100
12. Chess Player 2150 0.5 0.0 0.0 0.0 0.5 1.0 0.5 0.5 0.0 0.5 2.0 * 3.0 8.5/48 2030
13. Turbo Chess 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.0 1.0 0.0 0.5 1.0 * 3.0/48 1830
Re: Colossus X in D-fend and in PC
If you want to see the real strength of Colossus on a modern PC you should try the Colossus 2008b UCI engine: https://web.archive.org/web/20160313072 ... essuci.htm. 2642 in CCRL 40/40 Easy to install in Fritz or Arena.Fernando wrote:Probably this info has been published here once and again, but I have not an archiove about this, so let me ask how much strong is Colossus X running in D-fend and a fast PC.
It is a nice program as every one by his programmer.
Fern
Another side note: Chesstroid, who primarily tests engines for Android, has actually tested Colossus for C64 on normal speed, as well as Colossus for C64 with a 100x speedup: http://chesstroid.blogspot.no/2017/09/r ... 17-ft.html
Thank you for an interesting game.
- Bryan Whitby
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