"Master Y" is a variant of the  "game of Y" described by Schensted and Titus in their book "Mudcrack Y and Play-Y" (1975).

The goal of  "Master Y" is the same as for "the game of Y": to connect three edges of a triangular board with a chain of stones of your color.  The only difference is that the game is balanced without using the pie rule: the first player starts by placing one stone in any unoccupied cell and then both players take turns alternately placing two stones in two different unoccupied cells each turn.