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Harald Lüßen,
a German software developer, computer chess programmer and author of the WinBoard compliant chess engine Elephant [1], which is known for some bitboard comparisons in sliding piece attacks [2]. In the late 80s, Harald already wrote two private chess programs, one in GFA-Basic, and the second one in C for the Atari ST. After more than 10 years "out of business", he found bitboard explanations in the German magazine Computerschach und Spiele, and started his work on Elephant in August 2002. He proposed Exploding Bitboards [3] and elaborated on Michael Sherwin's approach dubbed Sherwin Bitboards [4].

Forum Posts


2005 ...

2010 ...

External Links


  1. ^ Elephant 1.00, a new winboard engine by Harald Lüßen, CCC, March 15, 2004
  2. ^ Re: BitBoard Tests Magic v Non-Rotated 32 Bits v 64 Bits by Harald Lüßen, CCC, August 24, 2007
  3. ^ Re: Compact Bitboard Attacks by Harald Lüßen, Winboard Forum, September 13, 2006
  4. ^ Re: New bitboard move generator by Harald Lüßen, Winboard Forum, September 19, 2006

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