Orbit (1975)

In this abstract boardgame, 2 players try to reach the opposite end of the gameboard as fast as possible.
The opposing player tries to prevent this by placing blockades on the board. Players can cross their own blockades, but not those of the opposing player. A player can either mover his pawn or place a blockade.

Part of the Clipper Duel Series.
Possibly only published in Dutch/French

(user summary)