# 1.5 Half Turn Metric

#### qwr

##### Member
I had an idea a while ago that half turns should count as 1.5 turns for the purposes of simple counting, since half moves take roughly longer than a single move and less than two distinct moves.

Actually I noticed in J Perm's alg formula, he suggests the same exact thing, albeit with other things that are much harder to tell from just looking at an alg like hard regrips and overworking fingers. In @trangium's Movecount Coefficient Calculator the number is slightly higher at 1.65.

Now here is an application. For A perm R2 B2 R F R' B2 R F' R, it's 9 HTM or 12 QTM, but I think the value should be in between.

Another case: For F2L 32, the triple sexy (or inverse sexy) case, that alg is 12 or 11 moves, compared to 7 HTM or 12 QTM moves of R2 sune: R2' U R2 U R2' U2' R2. However I think the movecount of the R2 sune should be counted in between with 1.5TM as 9.5 moves. (This is a bad example because common 4 move triggers like sexy or inverse sexy are so fast they should be maybe counted as 3 or even fewer moves, and the R2 sune has a special execution with alternating R2 that's like the pi OLL.)

To emphasize, this is not useful for counting moves for FMC, but as a little bit more accurate way to quickly and roughly tell how fast an alg is to execute compared to HTM and QTM, without counting things like how R/U moves are easier and regrips and risk etc.

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#### qwr

##### Member
1.5HTM is a clearer name although I can come up with other stupid ones like HHTM (hybrid HTM).

#### DNF_Cuber

##### Member
I had an idea a while ago that half turns should count as 1.5 turns for the purposes of simple counting, since half moves take roughly longer than a single move and less than two distinct moves.

Actually I noticed in J Perm's alg formula, he suggests the same exact thing, albeit with other things that are much harder to tell from just looking at an alg like hard regrips and overworking fingers. In @trangium's Movecount Coefficient Calculator the number is slightly higher at 1.65.

Now here is an application. For A perm R2 B2 R F R' B2 R F' R, it's 9 HTM or 12 QTM, but I think the value should be in between.

Another case: For F2L 32, the triple sexy (or inverse sexy) case, that alg is 12 or 11 moves, compared to 7 HTM or 12 QTM moves of R2 sune: R2' U R2 U R2' U2' R2. However I think the movecount of the R2 sune should be counted in between with 1.5TM as 9.5 moves. (This is a bad example because common 4 move triggers like sexy or inverse sexy are so fast they should be maybe counted as 3 or even fewer moves, and the R2 sune has a special execution with alternating R2 that's like the pi OLL.)

To emphasize, this is not useful for counting moves for FMC, but as a little bit more accurate way to quickly and roughly tell how fast an alg is to execute compared to HTM and QTM, without counting things like how R/U moves are easier and regrips and risk etc.
yeah, not as good as trangium's, but I can do this in my head

#### efattah

##### Member
Yeah but what we really need is CubeExplorer to run at 1.5HTM
And also greatly needed is the ability to deselect certain slice moves like E and S

#### OreKehStrah

##### Member
Yeah but what we really need is CubeExplorer to run at 1.5HTM
And also greatly needed is the ability to deselect certain slice moves like E and S
You can deselect certain moves in CE. If you blank out an F2L edge if you are genning LL algs for example, when you hit add and solve, it opens a menu and just starts genning algs. On that page you can enable slice moves, and deselect moves you don't want.

#### efattah

##### Member
You can deselect certain moves in CE. If you blank out an F2L edge if you are genning LL algs for example, when you hit add and solve, it opens a menu and just starts genning algs. On that page you can enable slice moves, and deselect moves you don't want.
This is false. Once you enable slice moves you can no longer deselect E or D or anything else.

#### qwr

##### Member
which cubeexplorer are you using? the one by Kociemba? I think other programs like ksolve+ allow setting weights for moves but I'm not sure.

#### OreKehStrah

##### Member
This is false. Once you enable slice moves you can no longer deselect E or D or anything else.

It works for me

#### xyzzy

##### Member
This is false. Once you enable slice moves you can no longer deselect E or D or anything else.
You should update Cube Explorer. I think this was added in version 5.14.