Con Kolivas, a software engineer and CK pool administrator, indicated that the miner increased their hashrate to 259 petahashes per second (PH/s). Given that only one mining device was connected, it's likely that this high hashrate was rented from a cloud service to attempt a block win. Normally, the miner's hashrate is significantly lower. Solo mining victories like this one have been increasingly rare as competition escalates and mining difficulty rises.
Recent similar successes also highlight a trend: a solo miner achieved a significant win in March, earning 3.15 BTC for block 887,212, and another win occurred in February with a block reward of over $300,000. These instances suggest that while solo mining remains a high-risk endeavor, it can lead to substantial rewards under the right circumstances.