Hiarcs Chess

New Human Reference & GM++ opening books with top over the board and correspondence play to May 2026. Latest theory, play advice and novelties, download top April 2026 games for HIARCS Chess Explorer (Pro). More: hiarcs.com/news.html

For X: Happy Easter! New HIARCS Tournament, Human Reference & GM++ books: top computer, OTB+ correspondence moves & stats to April 2026. Latest theory, play advice, novelties, download top March 26 games for HIARCS Chess Explorer (Pro). More: hiarcs.com/news.html #Easter

New HIARCS Human Reference & GM++ books: all top OTB + correspondence moves & stats through to March 2026. Latest theory, play advice, novelties, download Feb 2026 top games for HIARCS Chess Explorer (Pro). More: hiarcs.com/news.html

New HIARCS Human Reference & GM++ books: all top OTB + correspondence moves & stats through to Feb 2026. See the latest theory, play advice, and download Jan 2025 – Feb 2026 top games for HIARCS Chess Explorer (Pro). More: hiarcs.com/news.html

New HIARCS Human Reference & GM++ books: all top OTB + correspondence moves & stats through to Jan 2026. See the latest theory, play advice, and download Jan–Dec 2025 top games for HIARCS Chess Explorer (Pro). More: hiarcs.com/news.html

New HIARCS Human Reference & GM++ books: all top OTB + correspondence moves & stats through to Dec 2025. See the latest theory, play advice, and download Jan–Nov 2025 top games for HIARCS Chess Explorer (Pro). More: hiarcs.com/news.html

📘 Details: • Human Ref Book – 65M positions | 2.8M variations (from 2.3M games) • GM++ Book – 30M positions | 1,3M variations (from 1.17M GM games) • CTG Book – 32M positions | 1.9M variations (from 1.82M games) All deeply analysed with fresh play recommendations 🧠♟️ #HIARCS

♟️ HIARCS Online Book Access — Nov 2025 update! 127M+ positions with full stats & play recommendations. Latest Human Ref & GM++ books include OTB + corr games to Nov 2025 + Jan–Oct 2025 top games for HCE (Pro) 🔗 hiarcs.com/online-book-ac… #HIARCS #Chess #ChessBook #ChessTheory

New HIARCS Human Reference & GM++ books: all top OTB + correspondence moves & stats through Oct 2025. See the latest theory, play advice, and download Jan–Sep 2025 top games for HIARCS Chess Explorer (Pro). More: hiarcs.com/news.html

Latest HIARCS Human reference and GM++ books contain all the moves & stats for games up to September 2025. Subscribers can see the very latest theory, play recommendations and download the top games from Jan-Aug 2025 to enjoy in HCEP hiarcs.com/online-book-ac…

The new HIARCS Human Reference & GM++ books are here: packed with the latest OTB & correspondence moves, stats, and play recommendations through Aug 2025. Subscribers get fresh theory, Jan–July 2025 top games, and full access in HIARCS Chess Explorer(Pro) hiarcs.com/online-book-ac…

July 2025 - 234th update for Online Human Reference, Tournament and GM++ Books with over 126 million positions. Latest HIARCS Human reference and GM++ books contain all the moves and stats from over the board and correspondence games up to July 2025. hiarcs.com/online-book-ac…

Mid June 2025 - Tournament CTG Book update, now 32.6 million positions, 1.9 million variations based on 1.8 million top quality games - all analysed with play recommendations. #HIARCS #Chess #Explorer #Tournament #CTG #Opening #Book #HiarcsChess hiarcs.com/chess-opening-…

Subscribers can see the very latest theory, play recommendations and download the top games from Jan-May 2025 to enjoy in HIARCS Chess Explorer (Pro).

June 2025 - 233rd update for Online Human Reference, Tournament and GM++ Books with over 126 million positions. Latest HIARCS Human reference and GM++ books contain all the moves and stats from over the board and correspondence games up to June 2025. hiarcs.com/online-book-ac…

May 2025 - 232nd update for Online Human Reference, Tournament and GM++ Books with over 125 million positions. Latest HIARCS Human reference and GM++ books contain all the moves and stats from over the board and correspondence games up to May 2025. hiarcs.com/online-book-ac…

Tournament CTG Book with 32,270,531 positions/moves and 1,894,759 variations based on 1,891,049 top quality games

GM++ top human chess book: 29,401,031 positions/moves, 1,305,874 variations based on 1,138,840 GM human games

April 2025 - 231st update for Online Human Reference, Tournament and GM++ Books with over 125 million positions. Latest HIARCS Human reference and GM++ books contain all the moves and stats from over the board and correspondence games up to April 2025. hiarcs.com/online-book-ac…