On the Subject of A Square

It’s not a circle.

There is a square.

Focusing on a square at a certain time makes a square change to any of these colors (numbered from 0–9 in reading order):

Orange	Pink	Cyan	Yellow	Lavender
Brown	Tan	Blue	Jade	Indigo

The color of a square will change if you focus on a square depending on the last digit of the timer. Sometimes, the color’s position in the table does not match up to the timer digit. Only three colors will match up. Use these three “index” colors to find the correct colors in the next step.

To “input” a color, focus a square in such a way that it asssumes the desired color, then hold a square over a timer tick.

• If a square’s index colors are all in the same row in the table, then input the index colors in reading order^[1].
• If two of a square’s index colors share a column in the table, input the three wrong colors in the row with two index colors in reverse reading order^[2].
• If none of a square’s index colors are in the left or right columns in the table, input the remaining incorrect square’s colors from the middle three columns in vertical reading order^[3].
• If two of a square’s index colors are in the same row in the table, input the remaining one, then the other two index colors in reverse reading order^[2].

Input a square’s three correct colors in order to disarm the module. After three correct inputs, a square will turn green. If any input is wrong, a square will turn red and strike, and input will reset.

[1] Reading order, also known as scanline order, starts at the top-left, moves right across the row, and then continues likewise with each row from top to bottom.

[2] Reverse reading order starts at the bottom-right, moves left across the row, and then continues likewise with each row from bottom to top.

[3] Vertical reading order starts at the top-left, moves down the column, and then continues likewise with each column from left to right.