A break from puzzles. Not!

Looks like we will have a break from puzzles. BUT! Looking at the source code there is a puzzle!

Good job finding the hidden message and this message too!

Here's your bonus hidden puzzle:

I have a card in my pocket with the numbers from 1 through 48 written
on it. Some of the numbers are red, some are blue.  They are arranged
in a grid like this:

14   25    8  ( 1)   4    5
41  ( 6)  35   30  (27) (26)
(29) (18)  47  (42)  39  (38)
21   32  ( 3)  10  ( 7)  12
(34) (23) (40) (45)  48  (43)
( 2)  37   20  (13)  16   17
( 9)  44  (15)  22  (19)  24
46  (11) (28) (33)  36  (31)

The numbers in parentheses are red.

What is this card used for?

(This puzzle is based on an actual card I got from Will Strijbos.)

Better Visual:

Red Numbers:
1, 2, 3, 6, 7, 9, 11, 13, 15, 18, 19, 23, 26, 27, 28, 29, 31, 33, 34, 38, 40, 42, 43, 45

Blue Numbers:
4, 5, 8, 10, 12, 14, 16, 17, 20, 21, 22, 24, 25, 30, 32, 35, 36, 37, 39, 41, 44, 46, 47, 48

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