That's not a solo miner, that's a large farm running by a rich personal😂. They know that they will solve the block easier and faster using that much hashrate, the money they use to set up that hashrate and even the electricity bill is going to be massive. Richey favours those who have money, because it's obviously that they will always have the upper hand in everything, one single good move is all they need and they will make it worthwhile. I am even thinking that 100TH will soon be useless for those solo miners, if I want to do this I would rather start with 500TH, solving a block is the goal not playing for luck in the casino.