Ben and Felix mourn the loss of the logic gate board game, but they've decided that its demise won't stop them from putting their own spin on electronic number games. Felix begins with digitizing an abacus -- sure, there are calculators these days, but that doesn't satisfy the primitive counting necessities. Here, Ben challenges your binary arithmetic with hex and decimal numbers. What games have you made from electronics or what would you have done differently here? Can you beat Ben's high score? Let the team know over on the element14 Community.