Nebula

Nebula
by Dragan Zdravkovic

Features UCI protocol support, Chess960 (not yet, but coming soon), Multi PV mode, Multi-Processor support (up to 16 processors) and Nalimov Endgame Tablebases (up to 5 pieces) .....

https://sites.google.com/site/nebulachess/home

Nebula 1.0 (32bit/64bit/64bit_PopCnt)
https://sites.google.com/site/nebulachess/home/Nebula1.0.zip

Nebula 1.0

- silent update, version number unchanged
- re-compiled all exe files (32-bit builds were bad)
- added new FRC builds (Chess960)

https://sites.google.com/site/nebulachess/home/Nebula1.0.zip

Nebula 1.5
http://sites.google.com/site/nebulachess

Improved basic material, passed pawn and king safety evaluation.
New evaluation terms: piece-square tables, isolated/doubled/backwards pawns, pawn storms, candidate passers, rook on open/semi-open files and rook on 7th row.
Still missing are trapped pieces detection, outposts etc.
Search is the same as in 1.0 (almost no pruning so it's not going very deep).

Nebula 2.0

- Major search improvements (singular extensions, late move reductions and low depth bad move pruning).
- Fixed MP bugs causing engine to hang.
- Minor evaluation changes (bishop and knight outposts and some king safety improvements).

https://sites.google.com/site/nebulachess/home/Nebula_2.0.zip