Yes, I deleted the first one in order to tick the "chalenge" box as I was confused about the system. I'll make sure I'll contact moderator first if this happens again. Nevertheless thanks for actually putting it in the weekly chalenge galery as I was a bit late 
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Did you delete your first entry? I added it to the challenge and sent this piece back.
Mods can easily add and remove challenge entries.
I like it, but think there's a bit too much checker patternizing on them. Otherwise, pretty neat.