Click the Green flag to start the game. While the music is playing you will have approximately 40 seconds to organise your two teams. Don't forget one team can have more people than the other. Click on the letter the team chooses and ask your question. You can change the program so the question appears on screen if you want to! If Team A (Green) answers the question correctly type a into the box at the bottom of the screen. If Team B (Purple) answers correctly type a b instead. The colours will change, the winner is the first team to join the blocks together across the screen.
Many thanks to Bob, legend in your own right.