Prédateur 2.0 Released (+400 Elo?) - Merry Christmas to all!

[JuLieN]

Merry Christmas to all! To celebrate our Savior's birth, I give you the produce of two years of episodic efforts : Prédateur 2.0.

Among improvements and novelties, you'll find :
- ponder mode added
- Internal Iterative Deepening
- "Distance to mate" pruning
- Late Move Pruning
- "avoid null-move" in the hash table
- pawn-hash
- switched from verified null move to simple null move
- no more recapture nor pawnpush extensions
- Late Move Reduction finely tuned
- devided the search into a root and branchs ones
- much smarter output (PrÈdateur won't spam you anymore)
- improved time management
- passers and backward pawns recognition added to eval (still basic)
- LOTS of bugs suppressed here and there (especially in the hash tables
management).

It should be significantly stronger than Prédateur 0.1.5 (maybe +400 Elo? You tell me.)

You can download it on my website.

I wish you all a joyful Christmas 2010 and a very happy new year 2011! Have fun with Prédateur!

[Maharadja]

thank you and now it will probably take revenge for all the times that i beat the previous version

merry christmas

[Graham Banks]

Thanks Marcel.
Merry Christmas to you too.

[alpha123]

The bugs were "suppressed"?

Anyway, thanks!

Merry Christmas,
Peter

[fern]

Thanks Julien. How much strong you think it is?
Fern

[JuLieN]

thank you and now it will probably take revenge for all the times that i beat the previous version

merry christmas

YEp, it's payback time! ^^ More seriously, if the older Prédateur was easy to beat for you, a 400Elo points stronger version shouldn't be a monster, but should put for an interesting fight, don't you think?

Thanks Marcel.
Merry Christmas to you too.

You're welcome (ps: my first name is Julien, that's why I write my second name with upper case, as it's also some people's first name).

The bugs were "suppressed"?

Anyway, thanks!

Merry Christmas,
Peter

Let's say "terminated", then Though that would be walking on on another franchise... Next time I'll write everything in french

Thanks Julien. How much strong you think it is?
Fern

Hmm... Most of testers found Pred 0.1.5 to be around 1600-1650, so this version should cross the 2000 Elo barrier... But I really don't dare make any estimation myself. What I can say is that it scores a 100% against Pred 0.1.5.

[Graham Banks]

You're welcome (ps: my first name is Julien, that's why I write my second name with upper case, as it's also some people's first name).

My apologies for that oversight. I didn't mean to be rude.
I notice that in CCC, members usually call others by their surname as a sign of contempt. That certainly wasn't my intention, as I know you're aware.

Cheers,
Graham.

[JuLieN]

You're welcome (ps: my first name is Julien, that's why I write my second name with upper case, as it's also some people's first name).

My apologies for that oversight. I didn't mean to be rude.
I notice that in CCC, members usually call others by their surname as a sign of contempt. That certainly wasn't my intention, as I know you're aware.

Cheers,
Graham.

Don't worry, Graham, that wasn't rude at all. Since my childhood I have to explain people what my first name is and what my last name is. You would experience the same if you were called Graham John, for instance.

[JuLieN]

Thanks Julien. How much strong you think it is?
Fern

I ran a small tournament last night to give you a little more comprehensive answer than previously. Though Prédateur 2.0 coming first sadly gives less informations than if it had came second. But that's yet something.

[swami]

Thanks for the new update, it's certainly improved from previous version.