[Help Thread] 7 simul memo (last two numbers)

[FineGeoduck2211]

Dear fellow 7 simul clock solvers,

I main 7 simul (tommy's) for clock, and I also main clock as an event(Yes, I know that's weird). I currently average.. well it depends on the day. Good day~ sub 6 - low 6 : Mid day ~ 6 sec : Bad day 6-7. My Pb is 4.24(with flip), and my fastest 7 simul time is 4.52 (I got a 4.38, but it was a dnf ) anyway, I have a comp in August (Ontario Companionships 2024) and I might have a really good chance to podium or win if I improve. My current issue is my memo time, I can barely memo all six numbers in less than 12 seconds and that's if I just start memorizing without looking for decent cases. I was wondering if anyone knew a shorter way to memo the last two numbers because I take quite a bit on those. I take around 4-5 seconds memorizing the first 4 numbers, but I take like 10 seconds on the last 2 numbers. If anyone knows a shorter way to memorize the last two numbers, I would really appreciate if you could tell me. Thanks in advance!

PS: I use tommy's 7 simul. Also, if you guys have any tips to get faster, I would really appreciate it cause I'm trying to avg sub 5.

 

[Davian]

You can also do 5 letter memo. You skip the 3rd step as it is just doing the U to L on the front side.

Also do you calculate or visualize the last 2?

 

[Jorian Meeuse]

Yeah it's literally just practice. I used to be slow with it too but after a few thousand solves I can memo sub 6 comfortably (excluding finding orientation). And what @Davian said is good, I do that too because having the order of those flipped was always annoying to me.

 

[FineGeoduck2211]

You can also do 5 letter memo. You skip the 3rd step as it is just doing the U to L on the front side.

Also do you calculate or visualize the last 2?

I don't really like to skip the 3rd number cause when I get to solving the edges diagonally for the 2x2 block, I get lost cause I don't know how far away they are from each other. I mean i guess you could look at it from the beginning, but I'd rather spend 0.5 seconds more to get the 3rd number.
For the 5th number, I visualize for the most part. On the 6th, I visualize the lowercase side but calculate at the starting position.

Also, I don't flip the numbers for the 2nd pair, I actually memorize the 4th number, then the 3rd, that way I don't have to spend time trying to flip the letter pairs. Thanks tho.

 

[FineGeoduck2211]

Yeah it's literally just practice. I used to be slow with it too but after a few thousand solves I can memo sub 6 comfortably (excluding finding orientation). And what @Davian said is good, I do that too because having the order of those flipped was always annoying to me.

how do you even memo sub 6, that's like crazy fast. How do you memo the last 2 numbers fast?

 

[Jorian Meeuse]

how do you even memo sub 6, that's like crazy fast. How do you memo the last 2 numbers fast?

Well you don't really have a choice how to memo them other than in which order you add the differences, because each clock is independent of all other clocks.
I guess to get faster you just need to familiarize yourself with the 'modulo 12' (not really bc you'd probably use -4 rather than 8) arithmetic. At the very least you need to know 12=0, 11=-1, 10=-2, 9=-3, 8=-4, 7=-5, 6=-6, 5=-7, 4=-8, 3=-9, 2=-10, 1=-11
But I also like to skip intermediate steps, so for example -5 -3 = 4 (rather than -5 -3 = -8 = 4).
Generally, I've seen everything often enough to even skip that step and skip straight to the letter.

 

[FineGeoduck2211]

Well you don't really have a choice how to memo them other than in which order you add the differences, because each clock is independent of all other clocks.

So there isn't another way to memo the last 2 numbers?

 

[Jorian Meeuse]

So there isn't another way to memo the last 2 numbers?

That's right. Although one shortcut you can take if you have a matching corner edge pair in the front (i.e. your first letter is O), then the memo for the last letter can be optimized a bit, because the stuff you do at the start will be just the top clock. I'm not sure about conventional notation, but if we name the clocks on the front side a-i in the order you would usually read, then the 6th letter memo starts with 'e to b + h' which is b - e + h = h - e + b so if h and e are the same that's just b.
Not sure if that made explanation made sense lol

 

[FineGeoduck2211]

That's right. Although one shortcut you can take if you have a matching corner edge pair in the front (i.e. your first letter is O), then the memo for the last letter can be optimized a bit, because the stuff you do at the start will be just the top clock. I'm not sure about conventional notation, but if we name the clocks on the front side a-i in the order you would usually read, then the 6th letter memo starts with 'e to b + h' which is b - e + h = h - e + b so if h and e are the same that's just b.
Not sure if that made explanation made sense lol

wait, so is this another way to memo the 6th letter?

 

[Jorian Meeuse]

wait, so is this another way to memo the 6th letter?

No, it's a shortcut you can take if and only if the first letter was O

 

[FineGeoduck2211]

ohh, ok thanks

 

[Davian]

Alright. How to you memo the last 2?

 

[FineGeoduck2211]

Alright. How to you memo the last 2?

like tommy shows it

Letter 5: UR-U+C-D+l-ul+r
Letter 6: (u-c+d) + (UL-L) + (DR-R)

 

[Davian]

like tommy shows it

Letter 5: UR-U+C-D+l-ul+r
Letter 6: (u-c+d) + (UL-L) + (DR-R)

you can literally use letter 6 as letter 5

after letter 5 (letter 4 for 5lm) you do an x2, u-c+d x2 ul-l + dr-r then x2 and do the same (make sure to flip the letter at letter 5 (letter 4 for 5lm)

 

[FineGeoduck2211]

you can literally use letter 6 as letter 5

after letter 5 (letter 4 for 5lm) you do an x2, u-c+d x2 ul-l + dr-r then x2 and do the same (make sure to flip the letter at letter 5 (letter 4 for 5lm)

I didn't really understand that, could you rephrase that?

 

[Davian]

I didn't really understand that, could you rephrase that?

after letter 4, you do an x2 and you do (u-c+d) + (UL-L) + (DR-R)
then stay on the side you ended the memo for that letter, and repeat it.

make sure to flip your 5th letter (letter 4 for 5 letter memo) so 3 becomes -3, 5 becomes -5

 

[FineGeoduck2211]

after letter 4, you do an x2 and you do (u-c+d) + (UL-L) + (DR-R)
then stay on the side you ended the memo for that letter, and repeat it.

make sure to flip your 5th letter (letter 4 for 5 letter memo) so 3 becomes -3, 5 becomes -5

so if I had 1,2,3,4,5,6

then it would be 1,2,3,4,5,6 or 1,2,3,4,-5,6 ?

 

[Davian]

so if I had 1,2,3,4,5,6

then it would be 1,2,3,4,5,6 or 1,2,3,4,-5,6 ?

yeah also, a good way of memoing would be letter and number memo

numbers for positive, letters for negative. so for example 123 -1 -2 -3 would be 123abc. The negative numbers turn into letters.

 

[FineGeoduck2211]

UR6+ DR4- DL0+ UL5+ U6+ R3+ D3- L5+ ALL5+ y2 U1+ R0+ D2- L2+ ALL5-

z

Memo

of ea hf

would be

of he af?

 

[Jorian Meeuse]

after letter 4, you do an x2 and you do (u-c+d) + (UL-L) + (DR-R)
then stay on the side you ended the memo for that letter, and repeat it.

make sure to flip your 5th letter (letter 4 for 5 letter memo) so 3 becomes -3, 5 becomes -5

Yeah that is basically the same thing but with a slightly different order and you use the different side for one of the corners. Correct me if I'm wrong, but isn't that 1 more flip than the 'normal' way? I don't have a clock on me so I haven't tried but I feel like it is.