Solved help me with my puzzle

[Hessel]

command /addblocks:
    trigger:
        loop all blocks in radius 10 around player:
            if loop-block is red wool:
                add location of loop-block to {red::*}
                broadcast "%{red::*}%"
            else if loop-block is white wool:
                add location of loop-block to {white::*}
                broadcast "%{white::*}%"
            else if loop-block is blue wool:
                add location of loop-block to {blue::*}
                broadcast "%{blue::*}%"

I have this to define locations of blocks but now i want to check if the player
placed them correctly like it is supposed to be. How can i do this?

if "%event-region%" contains "dutch":
        loop blocks in radius 10 around player:
            if {red::*} contains loop-block:
                broadcast "works"

^ because i did this, but that didn't work :/

this is the pattern the player has to make inside the Polished Andesite:

View attachment 5227