A WCA event in which all competitors are given a scramble, and the competitors have one hour to find the solution to the scramble with as little turns as possible (the competitors are not allowed to just use the inverse of the scramble) L3C/L4C Last 3 Corners/Last 4 Corners Layer One section of a cube consisting of a number of cubies that turn as a unit. (e.g. A standard Rubik's Cube has 3 layers.) LL Last Layer. Usually refers to the top layer of the cube, but for the Roux method can refer to the middle layer between the left and right faces. LLEF Last Layer Edges First. This is a variation of ELL (Edges of the Last Layer), but it ignores the corners. Has fewer moves and cases then the normal ELL, and after that is L4C. MethodA combination of steps that can be used to solve a cube. MoveA turn of one of the sides of a puzzle or knobs in the case of the clock. N-look, also known as X-LookRefers to the maximum number of iterations of algorithms necessary to complete a step in a particular solving method, often the last layer, e.g. '4-look LL'. NRShort for National Record (e.g. a record for a country). Can also be "National Rank" when referring to the rank of a person's record in a database. OHShort for One-Handed, it is the event or practice of solving a cube with one hand, left or right. OLLOrientation of the Last Layer, usually used in reference to the respective step of the CFOP and ZZ methods. Orientation of the Last Layer with Corner Permutation. An advanced technique where multiple algorithms are learned for one OLL case, in order to use one that will solve the case while also permuting the corners, which results in an easy PLL case. OrientTo change the orientation of a piece. PBPersonal Best – personal record time to solve a puzzle. This can either be a single attempt or a trimmed average, depending on context. PRPersonal Record – the personal record time to solve a puzzle achieved in competition. PermuteTo relocate certain pieces in a way to achieve the desired result. PLLPermutation of the Last Layer. Usually used in reference to the respective step of the CFOP and ZZ methods, in which case it would follow the OLL step. PopWhen, during a solve, one or more cubies come out