Compare projects
Project comparisons allow you to view any selection of projects side by side just like they're shown on regular categories or in search results. You can try out an example or start yourself by adding a library to the comparison via the input below. You can also easily share your current comparison with others by sending the URL of the current page.
0.0
PIN (Piece Identifier Notation) provides a rule-agnostic format for identifying pieces
in abstract strategy board games. This gem implements the PIN Specification v1.0.0 with
a modern Ruby interface featuring immutable identifier objects and functional programming
principles. PIN uses single ASCII letters with optional state modifiers and case-based
side encoding (A-Z for first player, a-z for second player), enabling precise and portable
identification of pieces across multiple games. Perfect for game engines, board game notation
systems, and hybrid gaming platforms requiring compact, stateful piece representation.
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025