Rotor

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Rotor

Rotor, (ChessRotor)
an UCI compliant chess engine by Jan Brouwer, written in C++, which first appeared in rating lists in April 2007 . Rotor is available as Windows and Mac OS executable, as well as Android engine under Chess for Android .

Features

Board Representation

• 16x12 Vector Attacks Mailbox
• Incremental Updated Attack Tables

Search

• Iterative Deepening
• Alpha-Beta
• Principal Variation Search
• Transposition Table
• Move Ordering
  • Killer Heuristic
  • History Heuristic
• Selectivity
  • Check Extensions
  • Null Move Pruning
  • Futility Pruning
  • Late Move Reductions
  • Quiescence Search

Evaluation

• Material
• Mobility
• Pawn Structure
• Passed Pawns
• King Safety
• Tempo
• Evaluaton Tuning with CLOP

See also

• Enigma

Forum Posts

2007 ...

• Re: Division 4: 21 Participants by Jan Brouwer, CCC, April 12, 2007
• Amateur Litmus Test (Rotor 0.1a wins) by Graham Banks, CCC, April 30, 2007
• Re: The Art of Evaluation (long) by Jan Brouwer, CCC, August 02, 2007
• Rotor 0.3 : 2335 by Patrick Buchmann, CCC, July 21, 2008
• Rotor 0.4 released by Jan Brouwer, CCC, October 08, 2008
• Re: Side to Move Bonus---does it help? by Jan Brouwer, CCC, May 29, 2009
• Rotor 0.5 released by Jan Brouwer, CCC, July 16, 2009

2010 ...

• Rotor uses Rookie's attack table! by Jan Brouwer, CCC, February 26, 2010 » Rookie
• Rotor 0.6 released by Jan Brouwer, CCC, December 20, 2010
• Rotor on Android by Jan Brouwer, CCC, February 24, 2011 » Android
• evaluation function complete by Jan Brouwer, CCC, April 14, 2011
• Re: About king safety by Jan Brouwer, CCC, April 20, 2011
• Rotor 0.7 released by Jan Brouwer, CCC, July 24, 2012
• Rotor 0.7 castling bug by Jan Brouwer, CCC, July 31, 2012
• Rotor 0.7a released by Jan Brouwer, CCC, August 27, 2012
• Rotor 0.8 released by Jan Brouwer, CCC, March 14, 2013
• Re: Are these engines dead? by Jan Brouwer, CCC, May 11, 2015

External Links

Chess Engine

• ChessRotor
• Rotor in CCRL 40/15

Misc

• Rotor from Wikipedia
• Rotor (electric) from Wikipedia
• Helicopter rotor from Wikipedia
• Rotor machine from Wikipedia
• Enigma rotor details
• Rotor (mathematics) from Wikipedia
• Rigid rotor from Wikipedia
• Stonephace - Rotor, March 2009, Tolmen Centre, Constantine, Cornwall, YouTube Video

References

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