Dragon v4.7

Discussion about development of draughts in the time of computer and Internet.
MichelG
Posts: 252
Joined: Sun Dec 28, 2003 20:24
Contact:

Re: Dragon v4.7

Post by MichelG »

The issues should be fixed now in 4.8
You can download from: https://www.mdgsoftware.nl/draughts/install.html

* Option to show the board in 3d
* UI improvements
* engine improvements: +15% speedup of the move generator (minor effect on overall peformance)
* gui bugfixes: showing the gametree, endgame generation
* option to download 7 piece endings
Krzysztof Grzelak
Posts: 1449
Joined: Thu Jun 20, 2013 17:16
Real name: Krzysztof Grzelak

Re: Dragon v4.7

Post by Krzysztof Grzelak »

MichelG - I downloaded the database 7 piece - unfortunately it is not complete. Will provide full 7 piece database.

Image
Sidiki
Posts: 371
Joined: Thu Jan 15, 2015 16:28
Real name: Coulibaly Sidiki

Re: Dragon v4.7

Post by Sidiki »

MichelG wrote: Mon Jul 13, 2026 16:55 The issues should be fixed now in 4.8
You can download from: https://www.mdgsoftware.nl/draughts/install.html

* Option to show the board in 3d
* UI improvements
* engine improvements: +15% speedup of the move generator (minor effect on overall peformance)
* gui bugfixes: showing the gametree, endgame generation
* option to download 7 piece endings
Hi Michel,

Congratulations for this update, also for the engine improvements.

Friendly, Sidiki
MichelG
Posts: 252
Joined: Sun Dec 28, 2003 20:24
Contact:

Re: Dragon v4.7

Post by MichelG »

Krzysztof Grzelak wrote: Tue Jul 14, 2026 07:53 MichelG - I downloaded the database 7 piece - unfortunately it is not complete. Will provide full 7 piece database.

Image
Hi Krzysztof,

There is no need for those, they are left out on purpose. It is better to spend the memory usage on other databases than the mirror images.

A 1 ply search in 4 vs 3, will find the position in the 3 vs 4 database.

Michel
Krzysztof Grzelak
Posts: 1449
Joined: Thu Jun 20, 2013 17:16
Real name: Krzysztof Grzelak

Re: Dragon v4.7

Post by Krzysztof Grzelak »

MichelG wrote: Tue Jul 14, 2026 18:21 Hi Krzysztof,

There is no need for those, they are left out on purpose. It is better to spend the memory usage on other databases than the mirror images.

A 1 ply search in 4 vs 3, will find the position in the 3 vs 4 database.

Michel
Thank you for your reply MichelG. It is possible to send the full 7 piece database.

Krzysztof
Post Reply