Stack 4X4 is like Stack4 (which in turn is identical to the game of
Connect
Four), but you can place a piece along any of the four edges of the board
(not just the bottom edge); or you can put it wherever it becomes part
of a solid line of pieces extending all the way to any of the four edges.
The object is to put 4 or more of your pieces in a row. Another way
of thinking about it would be to say that
gravity worked in all four
directions, not just down.
This changes the game a LOT. What good players will often try
to do is build strong areas on two connecting edges of the board, and try
to get a winning combination of moves when the two areas meet.
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