How to Solve Level 3 of the Ethernaut Game

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In level 3 you have to play a game: coin flip. To complete this level you'll need to guess the correct outcome of a coin flip 10 times in a row. The random number is being generated from the block hash or the hash of the previously mined block. This number is used as the source of randomness which ultimately influences the side of the flipped coin. When you call the `flip` function in the `HackCoinFlip` contract the value will increase to 1.