Which famous technology brand created a mathematical puzzle as part of their product launch campaign that led mathematicians worldwide to compete in solving it?

Mathematics and marketing may seem worlds apart, but the integration of mathematical models has revolutionized how brands understand consumer behavior. From predictive analytics to optimization algorithms, mathematics provides the backbone for modern retail strategies. This trivia question explores a famous brand that leveraged mathematical innovations to transform their product launches and market positioning.

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Google (with their recruitment billboard puzzles)
Apple (with their iPhone X launch campaign)
Microsoft (with their Windows 95 launch puzzle)
IBM (with their Watson AI challenge)