Three-dimensional checkers

Three-dimensional chess is like the game "four in a row" but in three dimensions, it is necessary to collect a row of four checkers (along, across, up, diagonally, or diagonally up, diagonally down, and all other linear ascents and descents). The idea is not new, but the model is the embodiment of an expensive board game. The groove in the center of the checkers is a place for a 4*1 mm neodymium magnet, but it is not necessary, you can play like that. The game requires 36 checkers of one