Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
Perfect, we are looking forward to another live test, remembering that if the transaction of puzzle 66 goes well and the winner comes here to the forum to inform us, it would be a mega positive marketing for MARAPOOL, the company that saved the puzzle from the BOTs. 
Is MARAPOOL a public pool? The problem is that you need to trust not just the employees of MARAPOOL but each member of the pool. The block template is broadcasted to them and the public key is clearly part of it.
And what other choice do we have?
You can go regularly and run into 100 bot games, which is an even worse risk, or find something else
similar to MARAPOOL, which is hard to find, and if it is found, nothing is ever 100% safe.