Hi,

I'm trying to solve this CTF on Arbitrum: https://arbiscan.io/address/0xdF7cdFF0c5e85c974D6377244D9A0CEffA2b7A86#code

The problem is okay to solve, but I'm having trouble sending the TX from Foundry to Arbitrum.

Here is the code:

// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

import {Script, console} from "forge-std/Script.sol";

interface Challenge {
    function solveChallenge(uint256 randomGuess, string memory yourTwitterHandle) external;
}

contract SolveChallenge is Script {
    Challenge challenge = Challenge(0xdF7cdFF0c5e85c974D6377244D9A0CEffA2b7A86);

    function run() external {
        vm.startBroadcast(vm.envUint("PRIVATE_KEY"));
        uint256 correctAnswer =
            uint256(keccak256(abi.encodePacked(msg.sender, block.prevrandao, block.timestamp))) % 100000;
        challenge.solveChallenge(correctAnswer, "foufrix");
        vm.stopBroadcast();
    }
}

I'm launching the script with this command:

forge script script/SolveChallenge.s.sol:SolveChallenge --private-key $PRIVATE_KEY --rpc-url $RPC_URL --broadcast  --skip-simulation -vvvvv

# Also tried with 
--with-gas-price 100000000 --gas-price 100000000 --gas-limit 3000000

The preview runs well, but It failed when trying to send the transaction to Arbitrum:

Any idea on how to solve that? I tried different command from foundry that are suppose to manually set gas price but it does not seems to work.

Note : could be nice to add the foundry tag :) (as well as hardhat & brownie)