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baduk-opening-book

This repository contains opening books for the game of go/baduk/weiqi. Books can be especially useful for matchmaking of engines removing duplicate games while preventing any temperature induced potential imbalance due to different levels of policy sharpness between engines.

4-move opening books

These opening books consist of openings with 4 corner moves, which is considered fairly balanced whichever the engine is.

  • 4m_nosymm_with33: 512 openings. Allowed corner moves are [4-4, 3-4, 4-3, 3-3], and symmetrically duplicate openings are included.
  • 4m_nosymm_without33: 162 openings. Same as above, but without 3-3.
  • 4m_symm_with33: 212 openings. Allowed corner moves are [4-4, 3-4, 4-3, 3-3], and each opening is unique under symmetry operations.
  • 4m_symm_without33: 69 openings. Same as above, but without 3-3.
  • 4m_symm_without33_handpicked: 37 openings. A hand-picked subset of 4m_symm_without33.