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Up Topic The Rybka Lounge / Computer Chess / Fruit 2.3.1 vs. Fritz 11
- - By Shredder11 (*) [nl] Date 2009-08-10 13:31
Is it possible that Fruit 2.3.1 is stronger than Fritz 11 engine?
I let them run Blitz games of 4+2 against each other in Fritz and Fruit is doing wel. First match a Draw. After that fruit wins, after that it lost.
And what about Toga since Toga is based on fruit? is it more powerfull than Fruit 2.3.1 ? Im talking about Toga 1.4 the Free Engine.
Parent - By Uly (Gold) [mx] Date 2009-08-10 14:00

> First match a Draw. After that fruit wins, after that it lost.


The sample size is too small, e.g. Fritz 5.12 could beat Rybka 3 three times in a row, then go and lose 97 games/matches in a row, that's why you need bigger sample sizes.

> Im talking about Toga 1.4 the Free Engine.


The rating lists already produce big sample sizes that are relatively more reliable that what you can do at home (unless you play more games than them), please check:

CEGT Rating list

CCRL Rating list

Both lists agree that Toga is stronger than Fruit (even than strongest private fruit.)
- - By Shredder11 (*) [nl] Date 2009-08-10 17:02
Okay thanks for your info. I dont know very much about engines tho' but did u mean the number of games weren't enough to see who's stronger? I just started the games when i posted the first message.
Now 20 games are played. 6 won by Fruit. and 7 won bij Fritz 11. & 7 draws.

So even the Toga || 1.4 is stronger than any Fruit?
Parent - By Uly (Gold) [mx] Date 2009-08-10 23:24

> did u mean the number of games weren't enough to see who's stronger?


Yes. For certainty thousands of games are needed. You can download software like Bayeselo, input the games from the engines, and you'll get estimated ratings, i.e.

Engine 1: 2800 +50 -50
Engine 2: 2700 +75 -74

The plus and minus info means that the rating is inside that range, so Engine's 1 rating is between 2750 and 2950, and Engine 2's rating is between 2626 and 2775. And you can see these ranges overlap, so you still can't be sure who is stronger. Once you play enough games that these ranges don't overlap, I think you've achieved a 97% certainty.

> So even the Toga || 1.4 is stronger than any Fruit?


Toga II 1.4.2 JD 4CPU specifically seems stronger, but you can see ratings overlap so Private Fruit could be stronger (though you can't have private Fruit anyway.)
Up Topic The Rybka Lounge / Computer Chess / Fruit 2.3.1 vs. Fritz 11

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