Chess Hiarcs 15q Openings Book Includes Ctg And... May 2026

The "15q" package provides three distinct formats to suit different chess software:

Specifically used for HIARCS Chess Explorer (Pro) and the HIARCS iOS apps. This format is optimized for HIARCS's own search algorithms and is often used by mobile players who want a full-strength book on the go. Chess Hiarcs 15q Openings Book Includes Ctg And...

The is a high-performance tournament resource released in September 2024, containing over 32 million positions and 1.87 million variations . Designed for both elite human preparation and engine competition, it includes the critical CTG , HBG , and HCS file formats to ensure compatibility across a wide range of platforms . Key Formats Included The "15q" package provides three distinct formats to

The HIARCS 15q book is built on a massive dataset of top-quality games, including , elite correspondence games , and high-level computer matches . HIARCS Chess Explorer Pro for PC Designed for both elite human preparation and engine