Chess engine: Eubos 2.15

Eubos - a basic Java chess engine, written for kicks. Uses jcpi for the UCI protocol parts. Kind of weak, doesn't evaluate for king safety, for example. Now uses transpostion hashing, but because it runs in the Java VM on a bog standard PC, doesn't search very deeply (around 100K Nodes/s, though this is actually quite hard to evaluate due to the hashing). 

Author: Chris Bolt Rating CEDR=2353

v.2.15

I have completely reworked the internal position storage from 0x88 and bitboards to bit offset and bitboards. I have also reworked the hash table to use a tradiitonal indexed array system (previously it used a queue). Furthermore I have implemented a pawn hash array and tweaked a couple of evaluation parameters. Despite all this, v2.15 is not much stronger than v2.14.

I'll draft a full release note later.

To install Eubos as an engine in Arena:
1. Select Engines > Install New Engine
2. In the file browser dialog that appears, change the drop down to *.bat
3. Navigate to the Eubos binary location, select the Eubos.bat
4. Select UCI protocol to communicate with Eubos
5. That's it! 

Eubos 2.15 download