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Clarify LiquidAI to ChessLFM model lineage
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Released ChessLFM baseline

Observed match: 17.5/32 points, W/D/L 12–11–9, against Stockfish set to Elo 2000. Evaluation block: Later opening block (openings 16–31). Descriptive logistic estimate: ~2033 Elo; this small match is not a precise rating.

Method

Original public ChessLFM checkpoint. Included as the reference model; it is not a checkpoint trained by this project.

Interpretation

This is the highest observed score among the saved matches. Its estimate is specific to this 32-game block.

Lineage: LiquidAI/LFM2.5-230M-Base → this public ChessLFM checkpoint. Its surgery_meta.json identifies the LiquidAI base. This is an upstream reference model, not trained by this project. For legal move masking, board prompt construction, and search, see https://github.com/0xrushi/ChessLFM.