Rabbit

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[ The White Rabbit [1] Rabbit, (Rabbit Chess)

a free 32-bit Windows chess program with an own GUI, written by Roberto Waldteufel, released in 1998 via Đorđe Vidanović’s site and Gambit-Soft [2]. Written in Powerbasic [3], it is augmented with some Assembler to speed up the most CPU intensive parts like the evaluation function and move making and unmaking [4]. Apparently, Rabbit is a bitboard engine and applies the dense version of rotated bitboards considering the attack redundancy of the outer squares [5]. It performs a principal variation search with aspiration windows, preprocessing at the root, and searched about 30K to 50K nodes per second on a Pentium 200 MHz MMX [6].

Screenshot

Rabbit Chess [9]

See also

Forum Posts

Chess Engine

Rabbit

Moon rabbit from Wikipedia Rabbit-proof fence from Wikipedia Rabbit (cipher) from Wikipedia

Who Censored Roger Rabbit? from Wikipedia

John Tenniel’s Natural Fantasy: The White Rabbit

References

  1. Original artwork (1865) by John Tenniel, the novel by Lewis Carroll, Alice in Wonderland
  2. Rabbit available for download by Roberto Waldteufel, CCC, November 16, 1998
  3. Re: Tablebase Access Code by Roberto Waldteufel, CCC, April 26, 2000
  4. Re: Chess in BASIC? by Roberto Waldteufel, CCC, August 31, 1998
  5. Re: Extracting information from rotated Bitboards by Roberto Waldteufel, CCC, November 02, 1998
  6. Summer98-Tournament: Description by Torsten Schoop
  7. Two of the Paps of Jura taken from above Caol lla on Islay, by John Shaw, October 2002, Jura, Scotland - Wikipedia
  8. Isle of Jura History and Information
  9. Septober - Computerschach by Herbert Marquardt
  10. What the Dormouse Said - Wikipedia

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