Witz, a Chess Engine Communication Protocol compliant open source chess engine by Pradu Kannan, written in C, and licensed under the GPL. The Witz development started in 2004, initially using the 0x88 board representation and in 2005 subsequently rewritten with bitboards. With was soon superseded by Pradu's second engine, Buzz.
Witz [1]

Features

Board Representation

• Bitboards
• Rotated Bitboards

Search

• Iterative Deepening
• Principal Variation Search
• Alpha-Beta
• Transposition Table
• Quiescence Search
• Interior Node Recognizer
  Repetitions
  Fifty-move Rule
• Forward Pruning
  Adaptive Null Move Pruning
  Delta Pruning
• Extensions
  Check Extensions
  Recapture Extensions
  Pawn to 7th Rank
• Move Ordering
  History Heuristic
  Killer Heuristic
  SEE
  Dynamically Pregenerated Piece-Square Tables

Evaluation

• Material
• Mobility
• King Safety
• Pawn Structure
  Pawn Hash Table
  Passed Pawn
  Candidate Passed Pawn
  Doubled Pawn
  Isolated Pawn
  Weak Pawns

Misc

• Principal Variation Output
• Opening Book

See also

• Buzz
• Mwitz

Forum Posts

• Witz Chess Engine by Pradu Kannan, Winboard Forum, January 12, 2005
• Witz by Pradu Kannan, Winboard Forum, January 30, 2005
• MWITZ WB engine by Denis P. Mendoza, Winboard Forum, March 10, 2009

External Links

Chess Engine

• Witz Chess Engine
• Witz Chess Engine download | SourceForge.net
• Google Code Archive - mwitz

Misc

• Witz - Wiktionary
• Witz from Wikipedia
• Witz Wikipedia.de (German)

References

1. ^ Allegorical representation of the joke (German Witz) at the Stadttheater Gießen, Image by Oliver Abels, August 13, 2008, Wikimedia Commons
2. ^ based on Witz Chess Engine - Current Features

What links here?