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COLOSSUS CHESS 2.0

COLOSSUS is the best computer chess program available on any home computer. It is written using the very latest techniques by computer chess programmer of seven years experience. It has been tested against a wide range of other chess programs and proven stronger than any of the opposition. It has the widest range of true features available, including some never before implemented on any home computer chess program. COLOSSUS also has a perfect understanding of all the rules of chess, including under promotions, the fifty move rule and all draws by repetition.

Excerpts taken from “COLOSSUS CHESS 2.0” Box cover (back)

Picture taken from “COLOSSUS CHESS 2.0 Box (back)

OPENING BOOK

COLOSSUS has an opening book of about 3000 positions, which it uses to play the first few moves of the game quickly and accurately. Lines vary from 2 ply to 17 ply deep. When there is a choice of book moves at any position, COLOSSUS will choose between them at random, with a slight bias towards the moves which COLOSSUS itself considers best.

RESULTS

COLOSSUS 2.0 has been tested against numerous other home chess programs and has beaten them all. In the tests, sixteen games were played, on various levels, with an equal number of whites and blacks for each program. One point was awarded for a win, half a point of a draw, no points for a loss. The results of these tests were a follows:-

COLOSSUS 2.0 beat the following programs by:

• White-Knight MK11 - BBC Publications - BBC - Score: 11:5
• Superchess 3.0 - CP Software - Spectrum - Score: 12:4
• Grandmaster - Audiogenic - CBM 64 - Score: 12:4
• Cyrus Is Chess - Sinclair - Spectrum - Score: 13:3
• Spectrum Chess II - Sinclair - Spectrum - Score: 14:2
• Chess - Acornsoft - BBC - Score: 16:0
• Chess - Bug-Byte - BBC - Score: 16:0
• Chess - Computer Concepts - BBC - Score: 16:0
• Chess - Program Power - BBC - Score: 16:0
• Chess - Atari - Atari - Score: 16:0
• Chess - Oric - Oric - Score: 16:0
• Chess - Psion - Spectrum - Score: 16:0
• Master Chess - Mikro-Gen - Spectrum - Score: 16:0
• Sargon II - Hayden - Apple II - Score: 16:0
• ZX Chess - Artic - ZX 81 - Score: 16:0

NOTE: White-Knight was the 1983 Home Computer European Champion!!!

Excerpts taken from “Commodore 64 COLOSSUS 2” User Manual