BTG is a cryptocurrency with Bitcoin fundamentals, mined on common GPUs instead of specialty ASICs.
ASICs tend to monopolize mining to a few big players, but GPU mining means anyone can mine again - restoring decentralization and independence. GPU mining rewards go to individuals worldwide, instead of mostly to ASIC warehouse owners, recreating network effects that Bitcoin used to have. Source: bitcoingold.org
Mining solo with 100 Sol/s The BTG network have an estimate of 138 blocks per day, and a network hashrate of 988.71 KSol/s. With a hashrate of 100 Sol/s, which equals to 0.0101% of the network, you will have 1.40% chance of finding a block in a day. On average, you will find 1 block every 72 days at the current network hashrate.