I fought someone with less time than me on the mat last night. He has about 2 months in, where I have a little more than 4. Both of us are noobs. He is very strong and still uses the ol' bullrush from the knees noob technique. (I sort of grew out of that recently). I pull guard and pretty much control him from there, no big deal since he probably doesn't know how to pass guard yet. We jerk around like that for a bit. I work on the different guard positions, etc. etc. Eventually through brute strength he passes. I let him get me in full mount. I upa and end up in his guard. I easily go to side mount. From there I want to work the keylock. I have a hard time explaining the exact position of my hands and arms, but lets assume my "first" arm is in the correct position. forearm and elbow is tight against the mat and me hand is gripping is wrist. I slip the other arm underneath his arm and I grip my wrist. I "crank". Nothing. I "crank harder. Nothing. I pull his elbow closer to his body...nothing. This went on for like a minute until the round was over. What are some of the things I could have been doing wrong? Is it possible he is that strong/thick in the arm, that it had no effect? We are similar in size, but he is stronger than me but I can't see how just arm/ shoulder strentgh would be able to stop that. I am still a noob so I could have been doing a million things wrong. This happen to anyone?