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The world's first and only ICANN-accredited ENS domain.
EVM Gas Puzzles
Practice gas optimization with real smart contracts.
What is EVM Gas Puzzles
Gas puzzles make it easy for Ethereum engineers to practice optimizing smart contracts. Each puzzle has a gas target that we know is achievable, but the current implementation is not efficient enough to hit the target. Your goal is to optimize the contract so the target it hit.
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