Snyder Metric
In this metric, every parallel simultaneous movement of the puzzle is counted as one turn, regardless of the puzzle shape or the complexity of the turn. So this 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 algorithms that include anti-slices and imbalanced anti-slices, as well as compound multilayer slices and anti-slices.
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)
See Also
Invented by Anthony Snyder in 1983.
