I think the scaling is roughly reasonable. In chess National Master is is ELO 2200–2399, and above that is Grand Master, with lower ELO being skilled and club p

I think the scaling is roughly reasonable. In chess National Master is is ELO 2200–2399, and above that is Grand Master, with lower ELO being skilled and club players. In Go, 0-30kyu is amateur (club player trough master), 1-7 dan is advanced amateur (basically master, based on there being few in this category), and 1-9p is grand master. Based on that the graph accurately portrays the rise of Go AIs up to 2011: Year KGS Rank 2009 1-dan 2010 3-dan 2011 4-dan 2012 5-dan The scaling is not exact but I think it conveys the basic facts correctly - by 2011/2012 there well Go programs that could play well better than the average club player.