Okay for a bit. Decent implementation of the concept, but the problem is that there's still a huge advantage to moving first, even with the blocking moves. So when you move first, even the expert level is easily beatable and when you don't you just have to hope the computer makes a mistake.
Not enough The first player to move always wins. I recall seeing a 4d tic tac toe java applet back in 2003, there the goal was to place more lines than the opponent, and the game ended when the whole field was filled with x's and o's
. Way to hard and I was on easy. Uninstall this waste of space.
Fun but easyish Playing on a whiteboard we made up a rule that you have to draw a pattern that connects back to itself. That makes the game more level.
Rigged The problem with 4D: it requires four players. Proof: Consider the first move P1 to be in a corner space. The number of "planes", where each plane is a 2D grid, in 2D is 1, in 3D is 7 and in 4D > 7. Consisting only a 3D cube within our hypercube, wlg: The first move by P2 can be anywhere. P1 plays to the same plane as their first move, and hence is only 1 step away from winning. P2 will block them. They can now play to a different plane, and again P2 will block. P1 can always play st. they can now win.
SD Card installation allowed.