Snyder Metric
From Speedsolving.com Wiki
The Snyder Metric is a move count metric in which every parallel simultaneous movement of the puzzle is counted as one turn, regardless of the puzzle shape or the complexity of the turn. It is more or less equivalent to the Axial Turn Metric, where a movement of any layers (on the same axis) in any direction(s) counts as one turn. Snyder Notation may be used to represent turns using this metric.
The Snyder Metric was invented by Anthony Snyder in 1983.
Examples
The following algorithm for a corner 2-twist uses only 12 turns in this metric, fewer than most popular algorithms. In normal and Snyder Notation:
- R L U2 R' U' R U' R' L U2 L U L' U (14 turns HTM)
- R+o' U2 R' U' R U' R'o+ U2 L U L' U (12 turns Snyder Metric)
And the H perm can be solved in 6 turns in the Snyder Metric:
- R L U2 R' L' F' B' U2 F B (10 turns HTM)
- R+o' U2 R'o+ F'o+ U2 F+o' (6 turns Snyder Metric)
