Shove off was invented by Hank Atkins in 1984, and published by Ideal as part of their Hi-Q line.

The Ideal editionPhoto by Eric Mortensen

At its heart Shove off is a simple 4-in-a-line game, but the shoving mechanism adds a strategic layer that makes the game non-trivial.

External links:

• Geeky Hobbies entry
• Board Game Geek entry