LesChats-110326 is the new incremental update of the IJCCRL opening book for Fritz-compatible CTG workflows. This release follows the same controlled-maintenance philosophy as our latest book updates: expanding the audited reference base, increasing practical opening coverage, and reinforcing the playable surface with more depth and more reliable move selection for tournament use.
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Version update: from
LesChats-220226toLesChats-110326. - Audited expansion: the new build incorporates additional games from the latest reviewed database intake, preserving the project’s quality-first policy.
- Book growth: this update brings a considerable increase in opening lines and practical depth compared with the previous version.
- Workflow preserved: the release remains fully aligned with CTG / Fritz GUI production usage.
Note: this is an incremental learning and consolidation release. The objective is not cosmetic reshuffling, but a stronger and broader book surface built on audited material and controlled evolution.
The underlying training and reference base has been expanded with new audited games drawn from the latest curated database work. The goal remains unchanged: add useful signal while keeping the book coherent, credible, and tournament-safe.
- Scope: controlled database growth rather than raw volume for its own sake.
- Audit objective: reinforce trust in the book surface and reduce low-value or noisy continuations.
- Practical effect: better stability for repeated engine match conditions.
Compared with the previous public build, LesChats-110326 extends the number of available opening branches, giving the book a wider strategic footprint and improving its ability to sustain diverse tournament scenarios.
- Why it matters: broader line coverage helps avoid over-concentration in a narrow opening subset.
- Practical effect: more representative opening sampling across engines and matches.
The new version also improves book depth, allowing more positions to remain inside the prepared structure for longer. This helps produce cleaner early middlegame transitions and a more robust practical opening framework.
- Quality objective: deepen credible continuations without sacrificing coherence.
- Tournament value: better continuity reduces the risk of shallow or abrupt exits from prepared play.
LesChats-110326 remains a CTG-format opening book intended for the Fritz GUI ecosystem, with release-level emphasis on compatibility, stability, and practical deployment in engine competitions.
LesChats-110326 is a controlled expansion update of the IJCCRL opening book: the audited base has grown,
the number of opening lines has increased, and the overall book depth is now stronger than in the previous
220226 release. The result is a broader, deeper, and more tournament-ready CTG book surface while preserving
IJCCRL’s principle of auditable, stability-first evolution.
