Re: A solo Bitcoin miner just won block 718214 reward worth 6.25 $BTC

But two cases in a row is indeed arousing some curiosity among members as well as miners also.

Indeed the CK solo pool is not actually a pool.
I don’t know if it a known thing, they have a support thread here on bitcointalk.

[∞ YH] solo.ckpool.org 2% fee solo mining 262 blocks solved!

Here instead, the list of the recently minted blocks:
https://btc.com/stats/pool/Solo%20CK