Fat Fritz Update

[carldaman]

So the new(.2)net = the old(.1) one?
The -70 Elo difference is not a motive for development?

Why continue development, just to catch up to freeware? It's only a commercial product...

[Albert Silver]

...
I stopped development of the NN itself back in February.

So the new(.2)net = the old(.1) one?
The -70 Elo difference is not a motive for development?

Sure, but I have other projects in the works.

[AndrewGrant]

Boggles my mind why the dedicated chess fans on these forums care at all about Fat Fritz.
Go just get the latest Leela version, or try someone's fork / spinoff for free if you want some flavour.

[Collingwood]

Boggles my mind why the dedicated chess fans on these forums care at all about Fat Fritz.
Go just get the latest Leela version, or try someone's fork / spinoff for free if you want some flavour.

Yes, it seems a little irrational.

[Collingwood]

The -70 Elo difference is not a motive for development?

Why continue development, just to catch up to freeware? It's only a commercial product...

And it may be very hard to catch up anyway. It may have hit its ceiling.

[corres]

The -70 Elo difference is not a motive for development?

Why continue development, just to catch up to freeware? It's only a commercial product...

And it may be very hard to catch up anyway. It may have hit its ceiling.

Maybe Fat Fritz reach its ceiling.
But there are newer method to make stronger net and only the FatFritz was made using (mainly) human games.
So we can hope the style of FatFritz is nearer to human style than of Leela.
This is the cause why I interested in FatFritz.

[Stephen Ham]

Hi Guys,

I too value Fat Fritz. In addition to its interesting and aggressive style which is useful for analysis, I like its evaluation function. While I'm critical of all engine evaluations, FF is superior to SF NNUE's tiny net evaluations. Given sufficient time, I think its evaluations are the best I've seen from an engine.

I also think FF hasn't been given a fair chance to demonstrate its performance. I want to see it in TCEC...although I know that won't happen, which is a shame. My perception is that it's roughly equal in strength/performance to SF NNUE...until reaching the endgame. Then the performance drops off sharply. However, I'll bet that Albert can fix that if given a chance to play in TCEC.

-Steve-

[corres]

...until reaching the endgame. Then the performance drops off sharply.
-Steve-

It is pity but Masters, Grand Master did not use to play out the endgames so there are relative few game in chessbase Database with completed endgames.

[JohnW]

Version .2 available.

Fritz Update in addition.

By the way, the multi gpu syntax "(backend=cuda-fp16,gpu=0),(backend=cuda-fp16,gpu=1)" does not work on Fat Fritz though. Do anyone know a quick fix ?

When I run Fritz it asks if I want to update Fat Fritz from version 20 to version 2 (not .2) which is a little odd..
That gui has been a bug fest for several years now.

[Albert Silver]

Version .2 available.

Fritz Update in addition.

By the way, the multi gpu syntax "(backend=cuda-fp16,gpu=0),(backend=cuda-fp16,gpu=1)" does not work on Fat Fritz though. Do anyone know a quick fix ?

When I run Fritz it asks if I want to update Fat Fritz from version 20 to version 2 (not .2) which is a little odd..
That gui has been a bug fest for several years now.

That is likely not a bug, but asking whether you want to upgrade Fat Fritz as opposed to the GUI. They update separately.