Thirty-one boards, all of them open - a child who cannot do board 4 can do board 9 and come back. Nothing is ever locked.Pick cards and lay them in a row - tap one in the drawer and it joins the plan. Tap a card in the row and it comes out again.Press go, and it happens one square at a time - the card being carried out lights up, so a child can read their own plan back a card at a time.Walking into something just stops - the friend is startled, the thing wobbles, and that is all. No buzzer, no red cross. The cards are still there.Arriving, and the two of them cheer - no stars and no clock. Footprints show the way they came.
