Ruby implementation of Portable Chess Notation.

Ruby implementation of Chess Game Status Notation.

SNN support for the Ruby language.

Ruby implementation of General Gameplay Notation.

FEEN support for the Ruby language.

Ruby implementation of Location Condition Notation.

A Ruby interface for data serialization in PMN format.

STN (State Transition Notation) implementation for Ruby with immutable style objects.

QPI (Qualified Piece Identifier) implementation for Ruby with immutable identifier objects.

PNN support for the Ruby language.