Jiujitsu: Kinetic Chess

These videos are from Roy Dean's BJJ academy in Bend, Oregon. In the first video Dean narrates each 5 minute match (shown first in slow motion, then at full speed), explaining the techniques, strategy, and mechanics of high level grappling. The competitors vary in style, skill level, and size (from ~160 to 220 lbs). The matches are what I would characterize as old-school (position --> submission) BJJ, not the boring win-on-advantage style that has become common in tournaments.

In the second video Dean pushes the action more aggressively, giving up a bit of the sparring "flow" found in the first.