Bitcoin Gold aka Bitcoin GPU is a fork of the Bitcoin which will see the light of day on October 25th.
The developers behind the project hope to open the possibility of mining to a larger number of participants by replacing the algorithm of the bitcoin managing this aspect, by an algorithm that will participate in the securing of the network with graphics cards and render the maps Specialized ASICs.
The idea is to sink the mastodons of the Bitcoin mining - more and more controversial on the network - by making them less important.