The 15q series represents a significant evolution in the HIARCS Chess Software ecosystem, focusing on several critical improvements:
For instance, versions in this series have featured over 35 million positions and more than 2 million variations , ensuring even the most obscure sidelines are analyzed. Chess Hiarcs 15q Openings Book Includes Ctg And...
: The book is built using high-quality games from Grandmasters , elite correspondence play, and top-tier computer analysis. The 15q series represents a significant evolution in
For those who want to study manually or import into Lichess studies, the Hiarcs 15q book includes a with over 2.5 million fully classified games. These games are filtered for quality (minimum 2200 Elo) and recency (last 5 years prioritized). This PGN is not raw; it is annotated with performance scores. These games are filtered for quality (minimum 2200
Designed for use in ChessBase , Fritz , and Aquarium GUIs. This is the "industry standard" for deep opening trees and detailed statistics .
available via subscription or within the HIARCS Chess Explorer Pro . It includes multiple formats to ensure compatibility across different software: