Tuesday, May 19, 2009

Nanook v0.17 available

Nanook v0.17 is finally available ! You can download this version here. This is the list of the main changes :

- Basic implementation of the aspiration windows
- Better Killer moves
- Principal Variation Search
- Basic implementation of Late Move Reduction
- Corrected some bugs with hash table and check problems
- Basic implementation of history heuristic

I didn't manage yet the following important points :

- to ameliorate the compatibility with UCI protocol
- to work on the evaluation function
- to implement some specific algorithms to play end games

But it will be probably the main points I will work on wih the next version.

Here are the results of the last tournament between nanook v0.16 and v0.17, this new version seems better... :-)

15 games of 5 minutes :

Nanook_0-1713,5/15· ·· ·· ·· ·· ·· ··=11111111111=1= 20,25 
Nanook v0.16 1,5/15=00000000000=0=· ·· ·· ·· ·· ·· ·· 20,25 

I still have a lot of improvements to do in order to have a Nanook Chess version not so weak... I work will work on it !

Friday, April 17, 2009

Nanook Chess v0.17 is close to be ready

On the way of the v0.2, I'm developing the version v0.17, implementing PVS algorithm and late move reduction. I still have some bug that I'm resolving, but this version is really quicker than the previous one.
I will keep updating about the test resuts and new functionality during this week.

Thursday, April 2, 2009

I started to develop the version 0.2 of Nanook Chess, right now I resolved several bugs and optimized the software. This development version is yet stronger than the previous one :

1Nanook v0.2 dev7,0/10· ·· ·· ·· ··110101=11= 21,00 
2Nanook v0.16 3,0/10001010=00=· ·· ·· ·· ·· 21,00 

I still have to optimize the evaluation function before to make more tests, it's really slow and it seems to be the highest problem to resolve.

Wednesday, March 18, 2009

Nanook Chess is back

Nanook Chess development has been stopped almost 2 years ago. I have been too busy to continue to work on it, but I hope to be able to improve the AI level in the coming months.
The 2 years old version is now available at the following address : Nanook chess v0.16