Congrats to the winner!
Come on, you don't need to check the balance, you just need to get address of puzzle #120, that's all.
Can the OP confirm this is true? There are 13699680 total variants to check against, without repetitions and without trying to replace some position with the existing value. That's a lot of addresses to check the balance for.
Come on, you don't need to check the balance, you just need to get address of puzzle #120, that's all.
Maybe I missed something
What address are you talking about? You posted a 120-bits private key and said that three hex chars were intentionally changed. What address were we supposed to find, from the 14 million different possible alterations?