Mark， if it could be slightly biased towards black when playing with a 5.5 komi. In fact， on 9x9 go). That is the reason it is so undervalued against its big brother. Thanks again， it is difficult to recover when you are behind. A single mistake and you are out. Very technical (tactics). Short end part. Strategics has a role… (for a computer is all about reading but for humans It is impossible to accurately read to the end. Very often you must choose between moves from strategical (intuition) considerations only). I would not say 9x9 is easier than 19x19. It is obviously simpler，。
tactics is paramount in 9x9 but it is not something chaotical… I would compare rather with a 100 meter hurdles race. It is very short. Starting (opening) is essential。
but It is much “easier” for a dan player to loose against a kyu player in the small board. (and It is supposed dan players excel at tactics…). It is a pity there is so little bibliography (books， for you divulgative work. Anyway， however， I am feeling a bit sad these days… bots including neural networks are improving more and more and I do not know what future holds for go… ， all these games would have been lost by white with a smaller komi… I have heard before about the comparison: “9x9 is a knife fight in a phone booth” but I do not totally agree with it. Of course， whatever， I do appreciate this new opening tree… I only play 9x9 and my favourite part is openings so I will enjoy this a lot. I wonder。