SuperChess

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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.
 * SuperChess**, (Super Chess)

=Description= Excerpts from the **Superchess II** version **2.1** technical information screen :
 * 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

 * [[image:SuperChessScreen.gif width="320" link="http://www.zx81stuff.org.uk/zx81/generated/tapeinfo/s/SuperChess%28Softsync%29.html"]] ||
 * SuperChess ZX81 Screen ||

Spectrum

 * [[image:superchess3.gif width="320" link="http://www.worldofspectrum.org/infoseekid.cgi?id=0005007"]] ||
 * Superchess 3 ||

=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
> [|Sinclair ZX Spectrum Reviews - Superchess 3.5 Review]
 * [|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]
 * [|Spectrum 48K - Old Home Computer Chess Games Collection - Superchess II v2.1] from The Spacious Mind

Misc

 * [|Super (disambiguation) from Wikipedia]
 * [|super- - Wiktionary]

=References= =What links here?= include page="SuperChess" component="backlinks" limit="40"
 * Up one Level**