Identification: moving and stacking black and white pieces, packed in a tube

Question

My parents had this game, all I can remember:

• It was stored in a brownish cardboard tube, about 10 cm in diameter and 50 cm long.
• It consists of a playing mat (might have been artificial leather) and cylindrical wooden pieces of about 3 cm diameter, 1,5 cm height.
• There were black and white wooden pieces for the two players, maybe some more of a third color.
• The pieces were moved across the board and the game was about stacking them, using your own and the opponent's pieces.
• Probably from the late seventies, early eighties.
• Germany
• quite unsure: winning had something to do with tower heights, maybe points were awarded depending on the level that the pieces were on.

Answer 1

Any of these match? BGG geeklist of games in tubes

Also from the description sounds a lot like DVONN, but it didn't use tube packaging

Answer 2

Perhaps Polarity?

• black and white (and one red) discs stored in tube
• played on (in my version) a canvas mat
• points scored by towers that stacked, and the pieces moved across the board because they were magnetic and attracted/repelled each other

The key extras would be:

• discs were magnetic
• A play was to "lean" a disc against the magnetic field of another leaner or single, or a tower (created by leaners being "caught")
• if you caused anything to snap or fall, your turn ends (and if you created or added to a tower, it is flipped to the opponent's colour)