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    Drag the glowing hand to a hold, then let go to grab it.

    Crux

    Physics bouldering in your browser

    Challenges

    Easiest first. Send one to unlock the next.

      Your routes

        No custom routes yet. Build a boulder or a sport climb — sport walls come with quickdraws already bolted.

        Gym problems

          Sport routes

            Outdoors

              How to climb

              • Drag a hand or foot and let go near a hold. A green ring means it will stick.
              • Put your feet up high and your legs will push you up the wall.
              • Drag the body to shift your weight or pull in close.
              • Double-tap a limb and flick, or flick once you are in the air. A harder flick dynos farther, and after you leave the holds you only get one pull.
              • Match both hands on the TOP hold to send. Hit the mat holding nothing and you start over.
              • On sport routes, drag a hand onto the next carabiner to clip. A fall hangs from your last draw.
              • Outdoors, some edges blend into the rock. A mark with no green ring will not hold, and chalked holds can dead-end.
              • Sign in to save climb history and race friends on the same problem for time or moves.

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