Jobs returned to Atari in early 1975, and that summer, Bushnell assigned him to create a circuit board for the arcade video game Breakout in as few chips as possible, knowing that Jobs would recruit Wozniak for help. During his day job at HP, Wozniak drew sketches of the circuit design; at night, he joined Jobs at Atari and continued to refine the design, which Jobs implemented on a breadboard. According to Bushnell, Atari offered $100 (equivalent to about $500 in 2021) for each TTL chip that was eliminated in the machine. Jobs made a deal with Wozniak to split the fee evenly between them if Wozniak could minimize the number of chips. Much to the amazement of Atari engineers, within four days Wozniak reduced the TTL count to 45, far below the usual 100, though Atari later re-engineered it to make it easier to test and add a few missing features. According to Wozniak, Jobs told him that Atari paid them only $750 (instead of the actual $5,000), and that Wozniak's share was thus $375. Wozniak did not learn about the actual bonus until ten years later, but said that if Jobs had told him about it and explained that he needed the money, Wozniak would have given it to him.