Definitions for "Forced move"
A move which must be made lest the player lose material or even be checkmated.
A move which is clearly the only one which does not result in immediate catastrophe for the moving player.
A move for which there is only one reply (or if more than one reply, all but one are undesirable).
Keywords:  dice, way, legal, play, you
When you have only one legal way to play the dice.