A backgammon board has twenty-four narrow points and up to fifteen checkers stacked on any one of them. On a desktop that is fine. On a phone held in one hand, a single point is barely wider than a fingertip.
Our answer was to stop asking players to hit the point exactly. Tap a checker and the game shows every legal destination as a large target; tap near one and the move snaps into place. Dragging still works for anyone who prefers it.