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##Challenge rules:

Challenge rules:

##General rules:

General rules:

##Challenge rules:

##General rules:

Challenge rules:

General rules:

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Post Reopened by absoluteAquarian, Riker, Kevin Cruijssen code-golf
Post Closed as "Duplicate" by Digital Trauma code-golf
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Kevin Cruijssen
Kevin Cruijssen
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  • You can output the six 2D integer arrays in any reasonable format. Can be printed with delimiters; can be a 3D integer array containing the six 2D integer arrays; can be a string-list of lines; etc.
  • You are allowed to fill the bottom right position of the last four cards with a negative value in the range [-60, -1] or character '*' instead of leaving it out to make the 2D integer arrays rectangular matrices (no, you are not allowed to fill them with 0 or a non-integer like null/undefined as alternative, with the exception of * since a star is also used in the actual cards).
  • The order of the numbers in the matrices is mandatory. Although it doesn't matter for the physical magic trick, I see this challenge mainly as a - one, hence the restriction on order.
    The order of the matrices themselves in the output list can be in any order, since it's clear from the top-left card which matrix is which.
  • You can output the six 2D integer arrays in any reasonable format. Can be printed with delimiters; can be a 3D integer array containing the six 2D integer arrays; can be a string-list of lines; etc.
  • You are allowed to fill the bottom right position of the last four cards with a negative value in the range [-60, -1] instead of leaving it out to make the 2D integer arrays rectangular matrices (no, you are not allowed to fill them with 0 or a non-integer like null/undefined as alternative).
  • The order of the numbers in the matrices is mandatory. Although it doesn't matter for the physical magic trick, I see this challenge mainly as a - one, hence the restriction on order.
  • You can output the six 2D integer arrays in any reasonable format. Can be printed with delimiters; can be a 3D integer array containing the six 2D integer arrays; can be a string-list of lines; etc.
  • You are allowed to fill the bottom right position of the last four cards with a negative value in the range [-60, -1] or character '*' instead of leaving it out to make the 2D integer arrays rectangular matrices (no, you are not allowed to fill them with 0 or a non-integer like null/undefined as alternative, with the exception of * since a star is also used in the actual cards).
  • The order of the numbers in the matrices is mandatory. Although it doesn't matter for the physical magic trick, I see this challenge mainly as a - one, hence the restriction on order.
    The order of the matrices themselves in the output list can be in any order, since it's clear from the top-left card which matrix is which.
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Kevin Cruijssen
Kevin Cruijssen
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  • 384

Binary Numbers Magic Trick

The challenge is simply; output the following six 2D integer arrays:

[[ 1, 11, 21, 31, 41, 51],
 [ 3, 13, 23, 33, 43, 53],
 [ 5, 15, 25, 35, 45, 55],
 [ 7, 17, 27, 37, 47, 57],
 [ 9, 19, 29, 39, 49, 59]]

[[ 2, 11, 22, 31, 42, 51],
 [ 3, 14, 23, 34, 43, 54],
 [ 6, 15, 26, 35, 46, 55],
 [ 7, 18, 27, 38, 47, 58],
 [10, 19, 30, 39, 50, 59]]

[[ 4, 13, 22, 31, 44, 53],
 [ 5, 14, 23, 36, 45, 54],
 [ 6, 15, 28, 37, 46, 55],
 [ 7, 20, 29, 38, 47, 60],
 [12, 21, 30, 39, 52]]

[[ 8, 13, 26, 31, 44, 57],
 [ 9, 14, 27, 40, 45, 58],
 [10, 15, 28, 41, 46, 59],
 [11, 24, 29, 42, 47, 60],
 [12, 25, 30, 43, 56]]

[[16, 21, 26, 31, 52, 57],
 [17, 22, 27, 48, 53, 58],
 [18, 23, 28, 49, 54, 59],
 [19, 24, 29, 50, 55, 60],
 [20, 25, 30, 51, 56]]

[[32, 37, 42, 47, 52, 57],
 [33, 38, 43, 48, 53, 58],
 [34, 39, 44, 49, 54, 59],
 [35, 40, 45, 50, 55, 60],
 [36, 41, 46, 51, 56]]

What are these 2D integer arrays? These are the numbers used in a magic trick with cards containing these numbers:

enter image description here

The magic trick asks someone to think of a number in the range [1, 60], and give the one performing the magic trick all the cards which contain this number. The one performing the magic trick can then sum the top-left numbers (all a power of 2) of the given cards to get to the number the person was thinking of. Some additional explanation of why this works can be found here.

##Challenge rules:

  • You can output the six 2D integer arrays in any reasonable format. Can be printed with delimiters; can be a 3D integer array containing the six 2D integer arrays; can be a string-list of lines; etc.
  • You are allowed to fill the bottom right position of the last four cards with a negative value in the range [-60, -1] instead of leaving it out to make the 2D integer arrays rectangular matrices (no, you are not allowed to fill them with 0 or a non-integer like null/undefined as alternative).
  • The order of the numbers in the matrices is mandatory. Although it doesn't matter for the physical magic trick, I see this challenge mainly as a - one, hence the restriction on order.

##General rules:

  • This is , so shortest answer in bytes wins.
    Don't let code-golf languages discourage you from posting answers with non-codegolfing languages. Try to come up with an as short as possible answer for 'any' programming language.
  • Standard rules apply for your answer with default I/O rules, so you are allowed to use STDIN/STDOUT, functions/method with the proper parameters and return-type, full programs. Your call.
  • Default Loopholes are forbidden.
  • If possible, please add a link with a test for your code (i.e. TIO).
  • Also, adding an explanation for your answer is highly recommended.