Features:

• Easy-to-use and configurable Interface- Adjust Arena according to your personal preferences!
• Approx. 250 chess engines run under Arena. Strengths vary from very strong to easy to beat, some have adjustable strength .
• Support of the free and publicly available protocols UCI and Winboard for the communication between GUI and Engine.
• Detailed information - Analyze lines tell everything about the thinking process of the chess engines!
• Unique tournament features - Find out, how the chess engines compete against each other.
• Playing over the Internet online games against people worldwide.
• Simple move input and animated piece movement.
• Possibility to analyze your own or other games afterwards automatically.
• Extensive Help
• Printing - clearly laid out output on paper.

What´s New in version 3.0:

• UCIFilter fixed+improved
• Removing engines from memory after aborting tournament mode works now
• It is now possible to make an engine weaker in ICS mode
• Mainlines can be saved as variations in PGN (optional)
• Nodes/sec now works for Winboard engines
• New option for Knodes/second instead of nodes/second
• Sound at start of Arena now hearable
• Autoplayer repaired
• Wine tournament bug fixed: engines can restart now
• Wine font bug fixed: If fonts Arial or Courier New not available, choose appropriate one, not random one
• Wine help file reader added as separate download
• Wine does not show Chess Merida Arena´s mask. Mask disabled on wine, so graphics is not spoiled
• If no font "Wingdings" available (common on Wine), show simple ´+´,´=´ and ´-´ characters, not wrong ones
• Inactive buttons in tournament mode visible, not invisible, but inactive as they should
• Auto-Analysis: Comprehensive output in report starts with 1
• Auto-Analysis: Bug removed where positions were not analyzed
• Auto-Analysis: New option for adding parameter info in report file
• In PGN output duplicate game result in braces removed, e.g.: {1-0 Arena adjudication} 1-0
• Superfluous "..." after last move in PGN removed
• Winboard options "memory", "cores" and "egtpath" now globally settable
• Bug in combo boxes in Winboard options removed
• Option "Large Logos" works again