sashite-qpi

https://github.com/sashite/qpi.rb

QPI (Qualified Piece Identifier) provides a rule-agnostic format for identifying game pieces in abstract strategy board games by combining Style Identifier Notation (SIN) and Piece Identifier Notation (PIN) primitives. This gem implements the QPI Specification v1.0.0 with a modern Ruby interface featuring immutable identifier objects and functional programming principles. QPI enables complete piece identification with all four fundamental attributes (family, type, side, state) while supporting cross-style gaming environments. Perfect for multi-tradition board games, hybrid gaming systems, and game engines requiring comprehensive piece identification across different game styles and traditions.