Caissa-Chess-M1

Caissa-Chess-M1 is a chess reasoning model that thinks like a grandmaster. Based on Qwen 2.5 7B, fine-tuned with LoRA on 20,000 complex positions with detailed Chain-of-Thought explanations.

🎯 Features

• Structured reasoning with <evaluation>, <calculation>, and <reasoning> tags
• Grandmaster-level analysis trained on Stockfish depth 28+ positions
• Chain-of-Thought explanations for every move
• Balanced positions (-400 to +400 centipawns)

---

📖 Citation

@misc{metachess20k,
  author = {Open Chess},
  title = {MetaChess-20k: Chess Reasoning Dataset with Chain-of-Thought},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/open-chess/MetaChess-20k}
}

---