Chessmaster 8000 - Wikipedia

Are there any chess grandmasters who generally have a passive playing style and can still beat other GMs? - Quora

Chessmaster 9000 - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game

Chessmaster Games - Giant Bomb

What are the important principles that a Caro-Kann Defense player should know? - Quora

Chessmaster 7000 (1999) - MobyGames

Chessmaster

Peter's site blog - Evolution of vintage PC chess programs (until VGA was used) PART 4

Chessmaster — Википедия

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Chess - Wikipedia

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Download Chessmaster 5500 (Windows) - My Abandonware