Inside an old aircraft hangar, a drop tower, a wind fan and a bench full of gadgets are waiting for the next round of experiments. In this lab nothing counts until it has worked three times, so every experiment card has been printed in triplicate and shuffled face down. Pixel Mark calls the job Triple Test Lab, and he wants it sorted before the hangar doors close.
Beakers, magnets, light bulbs and parachuting eggs hide in neat rows, and only a full set of three proves a result. One odd card out and the whole test has to be read again. Each sorted bench brings a bigger one, and when the clock reaches zero the lab shuts for the night. How many results can pixel Mark confirm?
