What do we get, if we bring free climbing to extreme limits of physical powers and technical perfection? We also add the steel logic of playing chess, refinement of ballet, and take everything over the edge of laws of physics? Bouldering. Boulders are lower self-standing rock formations that are up to 12 metres high. Climbing is done without ropes and protection. Primal, natural contact with the rock and most primary contact with nature. The routes are so hard that it is not possible to see the line of climbing - holds and footholds. This is why climbers do not see routes and boulders and also do not name them routes, but "problems". A problem is first studied; each individual move, and then trying to combine them together. At the tend, to climb the line.Sometimes it takes a day, sometimes four years - for 18 moves and 10 metres of The End, which was climbed by Urh Čehovin after four years of continuous studying. The End is one of the hardest boulder problems on the planet, graded Fb 8c. A bit cosmic, quantum and incomprehensible? See the movie, there is everything quite simple to the eye.