Your evil driving instructor has prepared a very dangerous driving exercise! You must find a path from “IN” to “OUT” which passes through every ice region and over every arrow in the direction indicated. When driving on ice (shown in blue), you cannot turn; your car slides straight forward until it slides off the ice. Your instructor, being the impatient type, will also become annoyed if you drive over the same patch of solid ground (shown in white) multiple times. How can you complete this exercise without incurring your instructor’s wrath?
Here is an example of a smaller puzzle with the same rules and its solution:
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