
Dragon v4.7
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Krzysztof Grzelak
- Posts: 1474
- Joined: Thu Jun 20, 2013 17:16
- Real name: Krzysztof Grzelak
Re: Dragon v4.7
Thank you for the new version of the program.
Re: Dragon v4.7
Hi Michel,
What weights to use please?
I launched et dxp match and so "missing weights, poor performance"
Friendly, Sidiki
What weights to use please?
I launched et dxp match and so "missing weights, poor performance"
Friendly, Sidiki
Re: Dragon v4.7
Hi Sidiki,Sidiki wrote: Fri Aug 07, 2026 15:02 Hi Michel,
What weights to use please?
I launched et dxp match and so "missing weights, poor performance"
Friendly, Sidiki
You can ignore the warnings. They are about the old evaluation function, but dragon does not use them any more. I will remove the messages in a new version later.
Michel
Re: Dragon v4.7
Hi Michel,MichelG wrote: Thu Aug 13, 2026 18:18Hi Sidiki,Sidiki wrote: Fri Aug 07, 2026 15:02 Hi Michel,
What weights to use please?
I launched et dxp match and so "missing weights, poor performance"
Friendly, Sidiki
You can ignore the warnings. They are about the old evaluation function, but dragon does not use them any more. I will remove the messages in a new version later.
Michel
Thanks very much for the reply.
Friendly ,Sidiki .
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Krzysztof Grzelak
- Posts: 1474
- Joined: Thu Jun 20, 2013 17:16
- Real name: Krzysztof Grzelak
Re: Dragon v4.7
Hi Michel,
I've been waiting for 3 days and nothing is happening. Can you fix this or do something about it. Applies to program version 5.0. Screenshot from version 4.8.0 but the same thing happens.

Krzysztof
I've been waiting for 3 days and nothing is happening. Can you fix this or do something about it. Applies to program version 5.0. Screenshot from version 4.8.0 but the same thing happens.

Krzysztof
Re: Dragon v4.7
Version 5.0.1 is now available
It fixes the "missing weights, poor performance" message. In retrospect it may have affected strength in some cases after all.
5.0.1 is much stronger than 5.0. In my internal benchmark the score moved from 42.5% win to 47.2% wins against scan 3.1. A yet to be released version does about 49.7% and i can see a clear path for further improvement.
5.0.1 introduces a new neural net for endgames with 8 pieces or less, which is used for the endgames that are not installed. Also the neural net is now split into positions with and without kings. Training is based on 607 milion positions that have been fully rolled out.
@Krzysztof if the database generator problem still persist, can you post a new image, and indicate which of the 3 buttons you used to start it?
It fixes the "missing weights, poor performance" message. In retrospect it may have affected strength in some cases after all.
5.0.1 is much stronger than 5.0. In my internal benchmark the score moved from 42.5% win to 47.2% wins against scan 3.1. A yet to be released version does about 49.7% and i can see a clear path for further improvement.
5.0.1 introduces a new neural net for endgames with 8 pieces or less, which is used for the endgames that are not installed. Also the neural net is now split into positions with and without kings. Training is based on 607 milion positions that have been fully rolled out.
@Krzysztof if the database generator problem still persist, can you post a new image, and indicate which of the 3 buttons you used to start it?
Re: Dragon v4.7
Hi Michel,MichelG wrote: Fri Aug 28, 2026 17:28 Version 5.0.1 is now available
It fixes the "missing weights, poor performance" message. In retrospect it may have affected strength in some cases after all.
5.0.1 is much stronger than 5.0. In my internal benchmark the score moved from 42.5% win to 47.2% wins against scan 3.1. A yet to be released version does about 49.7% and i can see a clear path for further improvement.
5.0.1 introduces a new neural net for endgames with 8 pieces or less, which is used for the endgames that are not installed. Also the neural net is now split into positions with and without kings. Training is based on 607 milion positions that have been fully rolled out.
@Krzysztof if the database generator problem still persist, can you post a new image, and indicate which of the 3 buttons you used to start it?
Thanks again for this update.
It seem that strenght reached a good level.
Friendly, Sidiki
