It’s like Vulcan Connect 4!
4-PLAY is a variant of the copyrighted game, Quarto™️, which was created by Blaise Müller in 1989 and is currently published by Gigamic.
4-PLAY is a two player game with support for various AI opponents (novice thru best).
The board is a simple 4×4 grid. There are 16 unique pieces each defined by four binary attributes: blue/white, round/square, shiny/dull and drilled/undrilled. At the beginning of the game the board is empty and the pieces are grouped together off the board into a common pool.
The goal is have 4 pieces in a row (horizontal, vertical or diagonal) on the board sharing an attribute, so 4 blue pieces, 4 drilled pieces, etc.
4-PLAY is unusual in that each player selects the piece their opponent will play!
4-PLAY is available for sale here.