I want to know the answer to the following question:
Who did Atari attempt to force ceasing production of games for its system?
All the background I'm provided with is that "Unlike Atari, which never actively courted third-party developers (and even went to court in an attempt to force Activision to cease production of Atari 2600 games), Nintendo had anticipated and encouraged the involvement of third-party software developers; strictly, however, on Nintendo's terms.". Is that enough to answer the question?