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The Hopeless Case ¹

Hopeless, (Hopeless Chess)
an open source chess engine by Pawel Koziol, written in Pascal using WBUnit by Maciej Szmit for WinBoard compliance. Early versions were incorporated inside the stand-alone chess program Clericus written in Delphi, featuring an own GUI ¹. Hopeless played the PCCC 2006. In 2020 Hopeless and Clericus were revived by Roland Chastain, using Free Pascal and Lazarus ².

Features

Board Representation

• Piece-Lists
• 0x88 Board indexing the Piece-List

Search

• Iterative Deepening
• Aspiration Windows
• Principal Variation Search
• Transposition Table
• Move Ordering
  • MVV/LVA
  • Internal Iterative Deepening
  • Killer Heuristic
  • History Heuristic
• Selectivity
  • Null Move Pruning
  • Check Extensions
  • Passed Pawn Extensions
• Quiescence Search

Evaluation

³

• Material
• Asymmetric Evaluation
• Piece-Square Tables
• Evaluation of Pieces
  • Mobility
  • Trapped Pieces
  • Knight Outposts
  • Rooks on (Semi) Open Files
• Pawn Structure
  • Weak Pawns
  • Doubled Pawns
  • Pawn Center
  • Passed Pawns
• King Safety
  • Pawn Shelter
  • Attacking King Zone
• Patterns
  • Fianchetto
  • Tacticcal Patterns

See also

• Brainless
• Clericus

Forum Posts

• hopeless chess / clericus release by Pawel Koziol, CCC, July 05, 2007
• Re: new hopeless/clericus release by Pawel Koziol, CCC, August 15, 2007
• new hopeless / clericus and new www by Pawel Koziol, CCC, November 27, 2007
• Clericus/Hopeless ported to Lazarus by Roland Chastain, CCC, August 01, 2020

External Links

Chess Engine

• Clericus Chess
• Clericus Chess - Evaluation Function
• Hopeless Lazarus · GitLab hosted by Roland Chastain

Misc

• hopeless - Wiktionary
• Hopeless from Wikipedia
• Hopeless (Lichtenstein) from Wikipedia
• Susan Weinert, Martin Weinert, Hardy Fischötter - Hopeless Case, Kumanovo Jazz Festival, August 2004, YouTube Video

Watch on YouTube

References