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SuperChess, (Super Chess)
a family of commercial chess programs, developed by Chris Whittington, written in Sinclair BASIC with embedded Z80 assembly for the Sinclair ZX81 and ZX Spectrum, first released in 1982. Subsequent versions were released in 1983/84, and under the name Chess Clock '89 in 1989 ^[1].

Description

Excerpts from the Superchess II version 2.1 technical information screen ^[2]:

• Tree Search
  • Depth first alpha-beta search
  • Killer heuristic
  • Look ahead is level + one with one ply more if check

• Positional weighting factors
  • Piece safety
  • Mobility and development
  • King safety in middlegame
  • Centre control
  • Pawn position
  • Strong squares for knights
  • Good diagonals for bishops
  • Rooks on the seventh rank
  • Advanced pawns in the endgame
  • King activity in the endgame

Screenshots

ZX81

SuperChess ZX81 Screen [3]

Spectrum

Superchess 3 [4]

See also

• 1K ZX Chess
• Chess Player 2150
• Spectrum Chess
• ZX Chess

Forum Posts

• Turnier: Schachcomputer vergleich zu alte Computerschach Spiele by Spacious Mind, Schachcomputer.info Forum, August 12, 2008 (German)
• Re: La Máquina Preservadora. Programas de Ajedrez by duct, Meca Foro, May 20, 2016 (Spanish)

External Links

ZX81

• ZX81 Cassette Tape Information for Super Chess

Spectrum

• Superchess - World of Spectrum
• 6K Superchess - World of Spectrum
• Superchess II - World of Spectrum
• Superchess 3 - World of Spectrum
• Clock Chess '89 - World of Spectrum
• Sinclair ZX Spectrum Reviews - Superchess
• Sinclair ZX Spectrum Reviews - Superchess II
• Sinclair ZX Spectrum Reviews - 16K Superchess
• Sinclair ZX Spectrum Reviews - Superchess 3
  Sinclair ZX Spectrum Reviews - Superchess 3.5 Review
• Spectrum 48K - Old Home Computer Chess Games Collection - Superchess II v2.1 from The Spacious Mind

Misc

• Super (disambiguation) from Wikipedia
• super- - Wiktionary

References

1. ^ World of Spectrum - Sinclair Infoseek - Search Results
2. ^ Spectrum 48K - Old Home Computer Chess Games Collection - Superchess II v2.1 from The Spacious Mind
3. ^ ZX81 Cassette Tape Information for Super Chess
4. ^ Superchess 3 - World of Spectrum

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