Poly-Y

Poly-Y is an abstract strategy connection board game for two players. It is the successor of The Game of Y and the precursor of Star and *Star.

Players compete to capture the majority of corners of the board. A player captures a corner by making a Y with his pieces that connects the two sides adjacent to the corner with any other side of the board.

Poly-Y does not have a standard board. It can be played on any board that has the following characteristics:

 An equal number of cells along each side
 An odd number of sides; 5- and 9-sided boards are preferred
 Tessellated by mostly six-sided cells

Description from Mudcrack Y & Poly-Y (1975) by Craige Schensted and Charles Titus and Connection Games (2005) by Cameron Browne.