Boulder K, Dvoupatrák ?

I recently had the chance to try Boulder K in Dvoupatrák. Unfortunately, I'm unsure of the exact grade. Dvoupatrák is a beautiful bouldering area, and this particular problem felt challenging. The holds were quite crimpy and required precise footwork. The movement was powerful and demanded good body positioning. I managed to send it after a few attempts, and it was a very satisfying climb. Anyone know the grade? I'd love to get a better idea of the difficulty.