The U2 is two flicks with the left index, thus two moves. OLL: M U' M' U' U' M U' M' (8 ETM, Slice moves are performed as slices here. Scramble: L2 R2 U2 L2 U F2 L2 F2 U L B2 F' R B2 U' B F L F2 D'į2L 2: y' R U' R' U2 R U' R' (8 ETM, rotation requires regrip so it is counted)į2L 3+4: y L U2 L' R U R' (7 ETM, rotation counts, L' R counts as two moves not one, because it is performed as such) Note that the WCA defines ETM as "Each move of the categories Face Moves, Outer Block Moves, and Rotations is counted as 1 move.". It is intended mainly for reconstructions, where videos are available to see how many movements were actually performed. For example, U2 can be either 1 or 2 moves.ĮTM was designed for measuring 'true' TPS by David Woner. Therefore, the interpretation of this metric can be somewhat subjective. The execution turn metric (ETM), is a metric for the 3x3x3 where any perceived movement counts as a turn this includes rotations, but only if they require a regrip. God's Number in QSTM is likely around 23-26 moves, but the exact number has not yet been proven. This differs from QTM in that a slice move counts as one turn, not two and it differs from STM in that 180-degree turns in any layer count as two moves, not one. QSTM, short for Quarter Slice Turn Metric, is a move count metric for the 3x3x3 in which any clockwise or counterclockwise 90-degree turn of any layer counts as one turn, and rotations do not count as moves. God's Number in Slice Turn Metric is between 18 and 20 moves, but the exact number has not yet been proven. The following algorithm would count as 10 turns STM: r2 U R' U' M U R U' R' r' (an edge 3-cycle on the front face). STM is a very popular metric for those who use methods with many slice turns (such as Roux) although the official Fewest Moves event uses HTM. And it differs from the ATM in that it does not include anti-slice turns and other axial turns.Ĭube rotations do not count as turns. This differs from HTM in that a slice move counts as one turn, not two. The slice turn metric (STM) is a metric for the 3x3x3 where any turn of any layer, by any angle, counts as one turn. God's Number in Quarter Turn Metric is 26 moves.
Thus the following algorithm would count as 12 turns QTM: r2 U R' U' M U R U' R' r' (an edge 3-cycle on the front face).
Cube rotations do not count as turns, so a 'double layer' turn such as r would still count as one turn. It is important to note that in QTM a slice move can count as either two turns (if it is a quarter turn like M) or four turns (if it is a half turn like M2), since the centers are assumed to be fixed.
The quarter turn metric (QTM), sometimes also known as quantum turn metric is a metric for the 3x3x3 where any turn of any face, by 90 degrees clockwise or counterclockwise, counts as 1 turn thus it is different from the half turn metric because half turns count as two moves instead of one. God's Number in Half Turn Metric is 20 moves. Thus the following algorithm would count as 11 turns HTM: r2 U R' U' M U R U' R' r' (an edge 3-cycle on the front face). Cube rotations do not count as turns, so a 'double layer' turn such as r would count as one turn. It is important to note that in HTM a slice move actually counts as two turns, since the centers are assumed to be fixed.
The half turn metric (HTM), also known as the face turn metric (FTM) is a metric for the 3x3x3 where any turn of any face, by any angle, counts as 1 turn thus it is different from the quarter turn metric because half turns count as one move instead of two.
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