RareSkills

gas-puzzles. A sequence of smart contracts to practice gas optimization. These are used as practice assignments for RareSkills.io and the Udemy Gas Optimization Course

solidity-riddles. A collection of Solidity security exercises and puzzles to test your knowledge of Solidity's more esoteric features. Some are easy, and some are exceptionally challenging.

huff-puzzles. These exercises were created for our Advanced Solidity Bootcamp and open sourced. Learn EVM bytecode with the Huff Language.

zero-knowledge-puzzles. Exercises to learn the syntax of Circom and create EVM compatible zero knowledge programs.

Solidity-Exercises. Exercises to learn solidity. This accompanies the RareSkills Learn Solidity resource.

vertigo-rs. Mutation Testing for Ethereum Smart Contracts, support for Foundry

yul-puzzles. A set of exercises to practice Yul

zk-book. This is the markdown for the ZK Book

capture-the-ether-foundry. A recreation of capturetheether.com using Solidity 0.8.0 and the foundry environment.

uniswap-v2-puzzles. Solidity

Udemy-Yul-Code. Solidity

noir-puzzles. Solidity

RSA-presale-allowlist. This is a RareSkills.io project to allowlist an unlimited number of addresses far more efficiently than ECDSA or Merkle Trees.

Buggy-ERC-20. Solidity

ZK-bulletproofs. Exercises for Part 2 of the ZK-book

solana-tutorial.

invariant-testing-foundry-tutorial. This code accompanies the invariant testing tutorial on our website.

Solidity-Speed-Quiz. Solidity

rust-bootcamp. Rust

rareskills-huffathon-challenge. Solidity

certora-book. A Book on How to do Formal Verification with Certora

blog. The content of our blogs to make it easy for contributor to comment or submit corrections.

learn-solidity.

access-list-benchmarks. JavaScript

noir-zk-fullstack-example. TypeScript

ctfs. Solidity CTFs by RareSkills

refund-contract. JavaScript

awesome-huff. A curated list of resources for Huff language

cairo-tutorial.

icp-for-evm.

nft-presales-and-extensions. Different ERC721 smart contracts with capabilities to handle presales with bitmaps, whitelist with merkle trees, account for special items and staking

anchor-by-example. Anchor By Example

timelock-escrow-erc20. Solidity

rareskills.github.io.

morpho-puzzles. Solidity