A QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional barcode)[1][2] invented in 1994 by the Japanese automotive company Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application. QR codes use four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used.[3]
The Quick Response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. Applications include product tracking, item identification, time tracking, document management, and general marketing.[4]
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To solve this cache you will need a 21x21 grid with the top row being numbered 1-21 and the sideways row being letters from A-U.
Now that you got the grid , it's time to make a QR code , bellow are the squares that will be colored black.
!!Please inform me if there is a problem with the QR code!!
A - 1 , 2 , 3 , 4 , 5 , 6 , 7 , 9 , 10 , 15 , 16 , 17 , 18 , 19 , 20 , 21
B - 1 , 7 , 12 , 13 , 15 , 21
C - 1 , 3 , 4 , 5 , 7 , 11 , 12 , 15 , 17 , 18 , 19 , 21
D - 1 , 3 , 4 , 5 , 7 , 9 , 13 , 15 , 17 , 18 , 19 , 21
E - 1 , 3 , 4 , 5 , 7 , 9 , 10 , 13 , 15 , 17 , 18 , 19 , 21
F - 1 , 7 , 9 , 11 , 12 , 15 , 21
G - 1 , 2 , 3 , 4 , 5 , 6 , 7 , 9 , 11 , 13 , 15 , 16 , 17 , 18 , 19 , 20 , 21
H - 9 , 11 , 12 , 13
I - 1 , 5 , 7 , 8 , 9 , 11 , 12 , 14 , 15 , 16 , 17 , 18 , 21
J - 3 , 4 , 6 , 9 , 10 , 12 , 13 , 17 , 18
K - 1 , 5 , 6 , 7 , 9 , 10 , 12 , 14 , 18 , 19
L - 2 , 3 , 5 , 8 , 9 , 11 , 14 , 19
M - 2 , 3 , 5 , 7 , 8 , 10 , 11 , 13 , 14 , 15 , 16 , 17 , 19 , 20 , 21
N - 9 , 13 , 14 , 15 , 16 , 18 , 19 , 20 , 21
O - 1 , 2 , 3 , 4 , 5 , 6 , 7 , 9 , 10 , 13 , 17 , 18 , 21
P - 1 , 7 , 12 , 13 , 16 , 17 , 18 , 20 , 21
Q - 1 , 3 , 4 , 5 , 7 , 9 , 10 , 11 , 12 , 14 , 21
R - 1 , 3 , 4 , 5 , 7 , 13 , 14 , 15 , 18 , 20 , 21
S - 1 , 3 , 4 , 5 , 7 , 12 , 18 , 19
T - 1 , 7 , 11 , 12 , 16 , 19 , 21
U - 1 , 2 , 3 , 4 , 5 , 6 , 7 , 9 , 13 , 15 , 16 , 19 , 20 , 21