This got me 6th place with 4 blocks in ipv4.games

thegame.py

import requests
# From https://github.com/Ge0rg3/requests-ip-rotator
from requests_ip_rotator import ApiGateway
import time

"""
I got to 6th on the board as 'fiasco' with 4 blocks on 9/11/2022 of ipv4.games
You can do better. Adapt this to choose different regions and do 5-10k 
request runs per-api-gateway and you'll chew through whatever blocks 
AWS had api gateways in. They're supposedly free for the first 1million 
requests. 
By default, I was getting 9 different /8 blocks this was submitting to, 
so you might be able to do 9 blocks without tinkering. Adding more regions will help.

Using this was quite resilient with cleaning up the ApiGateway resources in AWS.

Give it a not-overly-excessive IAM permission in case it leaks somehow.
Configure your env with `aws configure` after installing the awscli.

If everything FUBARs and you can't hunt down your many apigateways, you can
turn to https://github.com/rebuy-de/aws-nuke to blow it all away.

If you don't want to give me more points, you should probably switch out the claim?name value to yours.
"""

iplist = []
with ApiGateway("http://ipv4.games") as g:
    session = requests.Session()
    session.mount("http://ipv4.games", g)
    for _ in range (10000):
        response = session.get("http://ipv4.games/claim?name=fiasco")
        # IP address happens to be the 5th token if you're splitting by space. Handy
        # This breaks in some error conditions. Happened after ~15k responses for me.
        # 15k responses got me 5800ish unique IPs. Running in range(10000) runs is probably best.
        ip = response.text.split()[5]
        #print(ip)
        iplist.append(ip)
        # Dump results to a file periodically
        if len(iplist) > 50:
            with open("apigateway-ips-claimed.txt", 'a') as ipfile:
                for ip in iplist:
                    ipfile.writelines(ip+'\n')
            iplist = []
            print("wrote to file")

            # Probably unnecessary, but I didn't want to overload anything/hit rate-limits.    
        time.sleep(.2)
print("done")