Komodo 8 [Download]
Komodo 8 is a substantial improvement over Komodo 8, which was already rated among the top three chess engines on almost all rating lists. Komodo 9 is approximately +50 Elo stronger than Komodo 8 on one core according to the independent IPON test and our own internal testing, with the gain increasing to about +60 Elo on 4 cores. Gains come from improved search, evaluation, and time management, as well as more efficient use of multiprocessing.

Komodo is two-time TCEC champion, the most prestigious online computer chess event, and has also won several CCT events.

Komodo supports Syzygy tablebases and is available for Windows, Linux, Mac and Android.

Features
Evaluation developed by a Grandmaster
Multi-core support (up to 64 cores)
Syzygy endgame tablebase support

What's new in Komodo 8
Evaluation improvements
- better assessment of mobility/activity
- improved handling of drawish positions
- improved understanding of attacks on the king
Improved search performance (much better time-to-depth)
Chess 960 (Fischer Random Chess) support
Persistent Hash: save and restore analysis
Over 100 other improvements throughout the software

Compatable GUIs
- Chessbase
- Fritz
- Aquarium
- Chess Assistant
- Hiarcs Chess Explorer
- Shredder (Classic)
- Arena

Available for Windows, Linux and Mac an Android version is available from Google. minimum requirement for Mac users: OSX 10.5.8
Supports up to 64 cores!