JanWillem

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Jan Willem te Kolsté

JanWillem, (Jan Willem)
a Chess Engine Communication Protocol compliant chess engine by Laurens Winkelhagen, written in C++, and released in 2004.

Features

Board Representation

• Bitboards

Search

• Iterative Deepening
• Aspiration Windows
• NegaScout
• Transposition Table
• Selectivity
  • Null Move Pruning
  • Check Extensions
  • Mate Threat Extensions (v1.11)
  • Quiescence Search

Evaluation

• Material
• Pawn Structure
• Passed Pawns
• King Centralization in Endgame

Misc

• Nalimov Tablebases
• Opening Book

See also

• FrankWalter

Forum Posts

• JanWillem 1.09 by Laurens Winkelhagen, Winboard Forum, October 29, 2004
• Jan Willem v1.10 compiled :-) by Laurens Winkelhagen, Winboard Forum, November 23, 2004
• JanWillem by Laurens Winkelhagen, Winboard Forum, November 26, 2004

Re: JanWillem by Laurens Winkelhagen, Winboard Forum, Dececmber 04, 2004

• Java & Magic Bitboards by Laurens Winkelhagen, Winboard Forum, February 03, 2009

External Links

Chess Engine

• Engine Download List from Ron Murawski's Computer-Chess Wiki
• Index of /chess/engines/Jim Ablett/JAN WILLEM by Jim Ablett, hosted by Kirill Kryukov
• JanWillem 1.13 in CCRL 40/4
• JanWillem 1.13 in KCEC

Misc

• Jan Willem from Wikipedia
• Jan Willem te Kolsté from Wikipedia
• Willem from Wikipedia

References

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