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 !