Cubed: The Rubik's Cube Camp (Session 4)
- Shared screen with speaker view
- Recording 2/2
Jeanette Shakalli
19:24
Hello, Evan! =) Welcome!
María Concepción Greissing
19:30
i'm Concepción. hi
Evan Pathirana
19:50
i am new
Jeanette Shakalli
19:59
Great! =)
Evan Pathirana
20:28
I can solve the whole 3x3 Rubik's cube
Jason Le
20:35
same
Nikhil Maturi
20:41
8 seconds
Joyce Yang (MAA AMC)
20:41
Guess how long the Sydney's cube solve will take??
Jason Le
20:49
7ish?
Evan Pathirana
20:55
sub 10
Evan Pathirana
21:05
and 2x2 Rubik's cube
Anika
21:30
wow
Jason Le
21:31
same
Joyce Yang (MAA AMC)
21:51
Evan was closest
Joyce Yang (MAA AMC)
22:45
We ask everyone to please turn off your video so as to prevent lagging.
Evan Pathirana
22:56
no
max
23:09
yes
Omkar N
23:34
Oh yeah, I saw that
Jason Le
24:09
I can solve the 2x2, 3x3, and the triangular cube
Evan Pathirana
24:16
how
Omkar N
24:47
I can solve most cubes, except for bigger cubes, like 6x6 and 7x7
Jason Le
24:53
cool
Evan Pathirana
24:59
coooolll
Jason Le
25:03
I am working on the 12 sided cube
Evan Pathirana
25:12
nice
Omkar N
25:17
megaminx?
Jason Le
25:20
yes
Evan Pathirana
25:24
no
Omkar N
25:24
nice!
Evan Pathirana
25:34
how
Evan Pathirana
25:43
I can not
Jason Le
25:58
I am still learning to solve it
Evan Pathirana
26:08
ok
Evan Pathirana
26:14
nice
Omkar N
26:19
I have only been to 4 or 5, only because none of them are relatively close by
Omkar N
26:22
comps
Joyce Yang (MAA AMC)
26:25
Nice Omkar! There are similar strategies for solving all odd nxn cubes I believe.
Doug Wilson
26:26
my comp got postponed
Jason Le
26:33
what is your fastest time for a 3x3 cube
Omkar N
26:50
18 officially, but 12.97 at home
Evan Pathirana
26:54
30:00
Jason Le
27:08
I got 59 seconds
Evan Pathirana
27:13
30 seconds
Jason Le
27:24
wow fast
IRENE vasquez PANAMA
27:35
wow
Evan Pathirana
27:35
thanks
Evan Pathirana
27:53
it is my best
Jason Le
28:01
really fast
Omkar N
28:13
yes you can
Evan Pathirana
28:14
what challenges
Pooja
28:15
It is
Nikhil Maturi
28:19
It is possible
Omkar N
28:20
you can
Evan Pathirana
28:25
sub 5
Evan Pathirana
28:28
seconds
Evan Pathirana
28:30
3x3
Dhanya Ramanujam
28:41
yes
Joyce Yang (MAA AMC)
28:49
Why do you say yes?
max
28:52
yes. you need 27 of the pieces
Joyce Yang (MAA AMC)
28:56
(Or no)
Evan Pathirana
29:07
it is notbecause it is wat
Omkar N
29:14
this is because, of you put 2 side by side, and then on sideways below the two pieces, that becomes a 6 by 6 by 1. this 6 times above eachother is a 6x6x6
Evan Pathirana
29:20
sorry
Joyce Yang (MAA AMC)
30:17
Nice explanation Omkar!
Evan Pathirana
30:34
yeah
Jason Le
30:51
I solved 2 3x3s and a 2x2 and a triangle in 3:08
Evan Pathirana
31:08
nice
Omkar N
31:53
I think I can do 2 3x3s and a 2x2 and a piraminx (pyramid cube) in maybe under 1;15
Jason Le
32:02
wow
Joyce Yang (MAA AMC)
32:20
Permutation=Choosing where the cubies are placed
Evan Pathirana
32:40
what does that mean
Omkar N
32:56
I can solve a 3x3 in an average time of 20 to 25 seconds, a 2x2 in an average of 9 seconds, and a pyra in an average of 10
Omkar N
33:01
so maybe faster
Jason Le
33:06
cool
Jeanette Shakalli
33:11
We are calculating how many different configurations of the Rubik's Cube are there
Evan Pathirana
33:17
ok very cool
Jason Le
33:24
I one time solved a pyramid one in 8 seconds
Joyce Yang (MAA AMC)
33:42
Orientation=Choosing what direction the cubies are facing
Evan Pathirana
33:59
ok
Omkar N
34:06
my best pyraminx I think is 6 or 5
Jason Le
34:10
cool
Jason Le
34:15
mine is 8
Evan Pathirana
34:40
nice very nice
Jason Le
35:19
It took me like less than 1 day to learn to solve a pyramix
Omkar N
35:26
yeah same
Jason Le
35:26
or pyramid cube
Omkar N
35:44
I got one for christmas, and learned it by the afternoon
Jason Le
35:51
nice
Omkar N
35:58
but now
Omkar N
36:02
I have a faster one
Evan Pathirana
36:07
I can not solve it
Jason Le
36:15
solve what
Evan Pathirana
36:31
pyramid cube
Jason Le
36:36
huh
Jason Le
36:43
you should try
Jason Le
36:48
it is pretty simple
Evan Pathirana
36:58
well I do not have one
Jason Le
37:04
oh
Jason Le
37:09
makes mor sense
Jason Le
37:13
*more
Evan Pathirana
37:34
my mom will not buy one
Jason Le
37:46
oof
Evan Pathirana
39:14
cause I am getting 3x3 GAN m lite magnetic
Jason Le
39:27
cool
Joyce Yang (MAA AMC)
39:32
Please type any questions so far!
Omkar N
39:51
I have a gan 356 air sm
Evan Pathirana
40:02
I ordered the 3x3 Gan 356 M lite magnetic
Evan Pathirana
40:04
as well
Evan Pathirana
40:14
me to
Anyelo Garcia
40:43
is there a general formula for the n x n cube?
Evan Pathirana
40:59
I do no no
Evan Pathirana
41:08
ok
Evan Pathirana
41:18
ask Sydney weaver
Evan Pathirana
43:42
what is it
Evan Pathirana
44:02
I AM NEW
Omkar N
44:12
oh, oops
Joyce Yang (MAA AMC)
44:14
this is because, of you put 2 side by side, and then on sideways below the two pieces, that becomes a 6 by 6 by 1. this 6 times above eachother is a 6x6x6
Omkar N
44:21
I forgot that it was 2, to 3
Omkar N
44:29
not*
Evan Pathirana
44:48
me neither
Omkar N
45:00
yeah, oops sorry
Joyce Yang (MAA AMC)
45:27
No worries. Good thought though.
Michael Eder
47:16
but there are not 27 cubes in a Rubriks cube or are there?
Evan Pathirana
48:36
core
Joyce Yang (MAA AMC)
48:40
There are 27 cubes in a 3x3x3 block
Evan Pathirana
48:52
okay
Joyce Yang (MAA AMC)
49:33
Challenge: Is there a way to cut the 3x3x3 block into 27 pieces using less than 6 cuts (possibly rearranging pieces after a cut)?
Evan Pathirana
50:13
no I do no think so
Evan Pathirana
50:24
no no no
Jason Le
50:57
No I don't think so
Jason Le
52:00
what does prime mean
Joyce Yang (MAA AMC)
52:18
Prime=counterclockwise
Evan Pathirana
52:22
oh
Jason Le
52:22
oh
Jason Le
52:26
okay
Evan Pathirana
52:30
cool
Joyce Yang (MAA AMC)
53:23
Example of Commutator = DRD'R'
Joyce Yang (MAA AMC)
53:44
Example of Conjugate=RDR'
Joyce Yang (MAA AMC)
58:21
The Commutator of U' and L' D2 L is shown as [ U' , L' D2 L ]
Joyce Yang (MAA AMC)
01:00:21
The conjugate of A, B is A B A'
Joyce Yang (MAA AMC)
01:06:42
because it would be hard to put the pieces together.
Joyce Yang (MAA AMC)
01:07:01
I think it is no because there are 27 blocks and 6 cuts is even and you can't get 7 out of 6
Doug Wilson
01:08:11
3
Joyce Yang (MAA AMC)
01:09:38
@Doug could you explain how you get 3?
Nikhil Maturi
01:09:44
How do get previous session recordings ?
Joyce Yang (MAA AMC)
01:10:09
@Nikhil it will be on maa-amc.org/featured-events
Nikhil Maturi
01:10:21
Thank you
Doug Wilson
01:10:29
After the first cut you have to put the book of 9 under the block of 18. We just keep rearranging from there (this is my grandson and I working on this)
Evan Pathirana
01:10:37
I know
Doug Wilson
01:11:06
^block
Evan Pathirana
01:11:20
what
Evan Pathirana
01:12:27
how did you get so good at the 3x3
Evan Pathirana
01:13:15
well I practiced alot
Jason Le
01:13:38
yeah
Evan Pathirana
01:13:42
where can I find a good rubiks cube timer?
Evan Pathirana
01:14:07
Also is this the last session?
max
01:14:20
yea
Evan Pathirana
01:14:26
at speedcubeshop
sydney weaver
01:14:27
qqtimer
sydney weaver
01:14:31
cstimer
Evan Pathirana
01:14:43
i
Evan Pathirana
01:14:44
speedcubeshop is where I by my cubes
Nicole Goberdhan (MAA AMC)
01:14:46
Feedback Form: https://forms.gle/HH1S4cUy7m4mJJWq6
Evan Pathirana
01:14:59
Also I am using c timer right now
Evan Pathirana
01:15:02
me to
Robert Stuckert
01:15:12
Wonderful presentation. Excellent work Sydney!
IRENE vasquez PANAMA
01:15:14
thanks for this experience
Joyce Yang (MAA AMC)
01:15:18
https://forms.gle/HH1S4cUy7m4mJJWq6
Evan Pathirana
01:15:23
I am using cstimer
Michael Eder
01:15:24
thank you
Evan Pathirana
01:16:47
bye bye!
Omkar N
01:16:51
Ok, thank you!