Requiem, 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]

Forum Posts

• Requiem (a WinBoard compatible engine) RELEASED! by Severi Salminen, CCC, December 09, 2001
• Requiem (a WinBoard compatible engine) RELEASED! by Severi Salminen, Winboard Forum, December 09, 2001
• To Severi Salminen about Requiem by Benny Antonsson, CCC, January 16, 2002
• Requiem v0.52 released by Severi Salminen, CCC, February 07, 2002
• Requiem v0.53 released by Severi Salminen, CCC, September 26, 2002

External Links

Chess Engine

• Homepage of Severi Salminen - Requiem
• Requiem from WBEC Ridderkerk
• Requiem 0.53 in CCRL 40/4
• Requiem 0.53 in KCEC
• Downloads from RWBC by Günther Simon

Misc

• Requiem from Wikipedia
• Music for the Requiem Mass - Wikipedia
• Requiem (disambiguation) from Wikipedia
• Requiem shark from Wikipedia
• Achim Zepezauer - Requiem, Tallinn, Estonia, Februar 2016, YouTube Video
  

References

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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