left to right
right to left
straight down
horizontal
diagonally
left to right
horizontal
diagonally
right to left
diagonally
across & down
right to left
The object of 3D Tic Tac Toe in 2D is to get four in a row horizontally, vertically or diagonally on one plane or across all four planes. Because I have yet to conquer three-dimensional graphics, the game is in two dimensions and you must therefore use your imagination to stack the four planes on top of each other. Many of the winning positions are obvious, some are more subtle and need to be studied closely. Occasionally, even seeing is not believing unless you imagine the position in three dimensions for a few minutes. Below are some of the possible winning solutions.
| Horizontally | |
| Vertically | |
| Diagonally left to right | |
| Diagonally right to left | |
| Across 4 planes straight down | |
| Across 4 planes horizontal diagonally left to right | |
| Across 4 planes horizontal diagonally right to left | |
| Across 4 planes diagonally across & down right to left | |