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a WinBoard protocol 2 compliant chess engine written by Severi Salminen in C with some x86 assembly routines, first released in December 2001 [1]. As bitboard engine, it uses rotated bitboards to calculate sliding piece attacks, and otherwise applies PVS alpha-beta with null move pruning, mate threat extensions, futility pruning, and SEE inside an iterative deepening framework without aspiration windows [2]. Requem has a simple evaluation function supported by a pawn hash table, and has some sense of pawn islands. It is not aware of repetitions [3], and lacks a main transposition table [4].
Requiem for Ernst Jandl [5]

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Chess Engine



  1. ^ Requiem (a WinBoard compatible engine) RELEASED! by Severi Salminen, CCC, December 09, 2001
  2. ^ Requiem v0.52 released by Severi Salminen, CCC, February 07, 2002
  3. ^ To Severi Salminen about Requiem by Benny Antonsson, CCC, January 16, 2002
  4. ^ Homepage of Severi Salminen - Requiem
  5. ^ Doris Neidl, 2002, Collage to Frederike Mayroecker's book Requiem for Ernst Jandl, Ernst Jandl from Wikipedia

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