Yup. Nasty isn't it. The trick is to get your other ships to take out ioners first, or get them off.. of be lucky and be missed.
If you are blocked when trying to k turn close to the corner it's possible that you have no legal move that will keep you on the board.
Blocking is a sound tactic, typically performed by cheap PS1-2 ships like the TIE Fighter and Z-95., you project your ship into your opponents predicted flight path. they hit you, they lose action, can't K-turn. etc.
