I don't do BJJ, but am familiar with it and have done some judo.
In contrast to stand-up striking arts, you have limited possibilities of movement when "hugging" your opponent on the ground, so you need to do have a strategy, do some planning, and have to adapt rapidly to changing conditions. Like "what move can I do in the current position?", "what moves could my opponent pull off form this position?", "what moves could I do if I changed to this other position?", etc. etc.
I do believe that you won't find any better than anecdotal evidence for this subject, tho. Expecially if you'd need to compare between arts.
I've always felt the chess analogy applied to rock climbing when I did it. Like a constant "game" against the wall and my body, to see if I could manoeuvre into position to attain the next hold. Very stimulating and at the same time relaxing.
In contrast to stand-up striking arts, you have limited possibilities of movement when "hugging" your opponent on the ground, so you need to do have a strategy, do some planning, and have to adapt rapidly to changing conditions. Like "what move can I do in the current position?", "what moves could my opponent pull off form this position?", "what moves could I do if I changed to this other position?", etc. etc.
I do believe that you won't find any better than anecdotal evidence for this subject, tho. Expecially if you'd need to compare between arts.