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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 [1]. Written in Powerbasic [2], it is augmented with some Assembler to speed up the most CPU intensive parts like the evaluation function and move making and unmaking [3]. Apparently, Rabbit is a bitboard engine and applies the dense version of rotated bitboards considering the attack redundancy of the outer squares [4]. 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 [5].
The White Rabbit [6]

Rabbit's Paradise

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Where the Rabbit was born - Two of the Paps of Jura [7] [8]

Screenshot

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Rabbit Chess [9]

See also


Forum Posts


External Links

Chess Engine

Rabbit


References

  1. ^ Rabbit available for download by Roberto Waldteufel, CCC, November 16, 1998
  2. ^ Re: Tablebase Access Code by Roberto Waldteufel, CCC, April 26, 2000
  3. ^ Re: Chess in BASIC? by Roberto Waldteufel, CCC, August 31, 1998
  4. ^ Re: Extracting information from rotated Bitboards by Roberto Waldteufel, CCC, November 02, 1998
  5. ^ Summer98-Tournament: Description by Torsten Schoop
  6. ^ Original artwork (1865) by John Tenniel, the novel by Lewis Carroll, Alice in Wonderland, John Tenniel - Wikimedia Commons
  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
  11. ^ The Dormouse from Wikipedia

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